Exhaust
Page 1 of 64 โ 6,125 parts.
- Akrapoviฤ๐ธ๐ฎ
Limited-Edition Exhaust System, 911 GT3 / GT3 RS (992)
Hybrid-construction system pairing a 3D-printed, sandblasted titanium inner shell with a ceramic matrix composite outer sleeve.
3D printedExhaust992Ti-6Al-4V (Grade 5)Ceramic Matrix Composite - BBi Autosport๐บ๐ธ
3D-Printed Titanium Exhaust System, 911 GT2 RS (991.2)
3.5-inch titanium system built around an additively manufactured crossover whose internal porting balances the two banks, a geometry that is impractical to fabricate by welding.
3D printedExhaust991Ti-6Al-4V (Grade 5) - Kline Innovation๐ท๐ด
Inconel 625 turbo manifolds, 911 Turbo (991 / 997.2)
Equal-length turbo manifolds in 0.9 mm wall Inconel 625 with an internally laser-welded collector, quoted at 1.5 kg per side.
Exhaust991997Inconel 625 - Fabspeed Motorsport๐บ๐ธ
Helical Valvetronic Titanium Exhaust, 911 Turbo / Turbo S (992)
Cat-back titanium system on 89 mm tubing with titanium valves, developed from a laser scan of the OEM system and quoted at 7.3 kg under stock.
Exhaust992Titanium (grade not disclosed) - Soul Performance Products๐บ๐ธ
Valved Exhaust System, 911 GT3 / GT3 RS (992)
Valved system routing through an x-chamber muffler when shut and a large-diameter x-pipe when open, so the two states are genuinely different paths rather than one path with a flap in it.
Exhaust992Stainless Steel 304L - Soul Performance Products๐บ๐ธ
Race Exhaust System, 911 GT3 (992.2)
Catless race system, quoted at up to 11.4 kg under the factory components it replaces.
Exhaust992Stainless Steel 304L - Dundon Motorsports๐บ๐ธ
Long Tube Street Header Exhaust System, GT3 RS / 911 R (991.1)
Long-tube header system in 321 stainless with a metal-core 200 cpsi catalyst, aimed at keeping street legality while moving the collector.
Exhaust991Stainless Steel 321 - Dundon Motorsports๐บ๐ธ
Titanium Muffler, 911 GT3 (997.1)
Titanium muffler assembly quoted at 25 lb under stock, against 10 lb for the same part in 321 stainless.
Exhaust997Titanium (grade not disclosed) - Dundon Motorsports๐บ๐ธ
Race Header System with Valved Side Deletes, GT3 / GT3 RS / R / Touring (991)
Full race header package quoted at 36 lb against 86 lb of factory hardware โ a 50 lb swing, the largest single weight change in this catalog.
Exhaust991Stainless Steel 321 - Akrapoviฤ๐ธ๐ฎ
Slip-On Race Line Titanium Exhaust, GT3 / GT3 Touring (991.2)
Titanium slip-on that keeps the factory headers and catalysts, so it changes mass and sound without touching emissions hardware.
Exhaust991Titanium (grade not disclosed) - Akrapoviฤ๐ธ๐ฎ
Slip-On Line Titanium Exhaust, 911 Carrera (992, OPF/GPF)
Titanium slip-on for OPF/GPF-equipped Carreras with the factory sport exhaust.
Exhaust992Titanium (grade not disclosed) - Fabspeed Motorsport๐บ๐ธ
Titanium Valved Cat-Back Exhaust, GT3 / GT3 RS (992)
Titanium cat-back with valve control retained, for the naturally aspirated 992 GT3.
Exhaust992Titanium (grade not disclosed) - Verboten Motorsport๐บ๐ธ
Titanium Manifold Studs, 911 Turbo (996)
Titanium replacements for the exhaust manifold studs, a fastener that seizes and shears on high-mileage turbo cars.
Exhaust996Titanium (grade not disclosed) - Fabspeed Motorsport๐บ๐ธ
Supercup Exhaust System, 911 Turbo (993)
T304 stainless Supercup system on CNC mandrel-bent tubing.
Exhaust993Stainless Steel 304L - Fabspeed Motorsport๐บ๐ธ
Competition Race Exhaust System, 911 Turbo / Turbo S / GT2 EVO (993)
The lightest system Fabspeed offers for the car, quoted at over 80 lb saved from the rear of the vehicle.
Exhaust993Stainless Steel 304L - Fabspeed Motorsport๐บ๐ธ
Performance Package, 911 Turbo (993)
Bundle of Supercup system, sport catalyst X-pipe, sport headers, CUP airbox cover, BMC filter and ECU tuning, sold as one specification.
Exhaust993Stainless Steel 304L - Fabspeed Motorsport๐บ๐ธ
Sport Headers with Heat, 911 Turbo (993)
Headers with a 3-into-1 high-velocity merge collector, retaining the cabin heat take-off that the air-cooled cars depend on.
Exhaust993Stainless Steel 304L - Kline Innovation๐ท๐ด
Inconel 625 Exhaust System, 911 Turbo (993)
Full Inconel system quoted at 21.4 kg complete with manifolds โ and one of very few vendors publishing component-level weights rather than a single headline figure.
Exhaust993Inconel 625 - Kline Innovation๐ท๐ด
Inconel 625 Manifolds with Heat Exchanger, 911 Turbo (993)
Manifolds quoted at 2.9 kg each with the heat exchanger included.
Exhaust993Inconel 625 - Kline Innovation๐ท๐ด
Inconel 625 100-Cell X-Pipe, 911 Turbo (993)
Catalysed X-pipe section at 8.4 kg, retaining 100-cell catalysts.
Exhaust993Inconel 625 - Kline Innovation๐ท๐ด
Inconel 625 Silencer Section, 911 Turbo (993)
Rear silencer at 7.2 kg.
Exhaust993Inconel 625 - Cargraphic๐ฉ๐ช
Full Sport Exhaust System with Valves, 911 Carrera 2 / 4 (993)
Valved system with ID manifolds including heating and 200 cpsi catalysts, for the naturally aspirated 993.
Exhaust993Stainless Steel 304L - Fabspeed Motorsport๐บ๐ธ
Sport Catalytic Converter X-Pipe, 911 Turbo (993)
High-flow catalysed X-pipe section, sitting between the headers and the rear system.
Exhaust993Stainless Steel 304L - Silverlake Projects๐บ๐ธ
Titanium Exhaust Manifold Studs and Nuts, Porsche
Titanium exhaust manifold fastener kits with 12-point nuts and copper washers, for both air-cooled and water-cooled engines.
Exhaust901g-series964993996997Ti-6Al-4V (Grade 5) - Silverlake Projects๐บ๐ธ
Titanium Exhaust Fasteners, 911 GT3
GT3-specific titanium exhaust fastener set.
Exhaust996997991Ti-6Al-4V (Grade 5) - ARP (Automotive Racing Products)๐บ๐ธ
Exhaust Manifold Studs and Bolts, Porsche
ARP steel exhaust hardware โ the conventional counterpart to the titanium sets, and the default on a rebuild.
Exhaust901g-series964993996997Chromoly Steel - ARQRAY (ใขใผใญใฅใฌใผ)๐ฏ๐ต
Sport Exhaust System, 911
Hand-built stainless or titanium systems from a Yokohama maker working only on imported cars, with one-off fabrication available.
Exhaust993996997991Stainless Steel 304LTitanium (grade not disclosed) - Kreissieg (ใฏใฉใคในใธใผใฏ)๐ฏ๐ต
F1 Sound Valvetronic Exhaust System, GT3 (996 / 997)
Valve-controlled bypass system tuned for a high-rpm note, rather than a conventional muffler swap.
Exhaust996997Stainless Steel 304L - ASPEC (็ฑๆฏๆดพๅ
)๐จ๐ณ
iDEAS Valved Mid and Rear Exhaust, GT3 (991.1 / 991.2)
Stainless system at 25.8 kg against 40.4 kg stock, with a valve driven by a colour LCD head unit rather than the factory switch.
Exhaust991Stainless Steel 304L - GEMBALLA๐ฉ๐ช
Sport Exhaust System, 911 Turbo (991)
Larger-diameter system with flap control, quoted at up to 10 PS.
Exhaust991Stainless Steel 304L - Capristo Automotive๐ฉ๐ช
Exhaust System with 250-Cell Sport Catalysts, 911 (992)
Valved system supplied with 250-cell sport catalysts rather than a delete pipe.
Exhaust992Stainless Steel 304L - Eisenmann๐ฉ๐ช
Sport Exhaust System, 911
German exhaust range across the water-cooled 911s.
Exhaust996997991Stainless Steel 304L - OST (Orbisound Technology)๐ซ๐ท
Stainless Steel Exhaust System, 911
French-built stainless systems from a manufacturer that fabricates rather than rebadges.
Exhaust996997991Stainless Steel 304L - Scart๐ซ๐ท
Sport Exhaust System, 911 (991)
French-designed sport exhaust for the 991, distributed through Diapason Motorsport.
Exhaust991Stainless Steel 304L - Ragazzon๐ฎ๐น
Split Stainless Rear Exhaust, 911 (997)
Split rear silencer available with OEM-style or Ragazzon tailpipes.
Exhaust997Stainless Steel 304L - Supersprint๐ฎ๐น
Sport Exhaust Range, 911
Italian exhaust maker carried across the Porsche range by the major European retailers.
Exhaust996997991Stainless Steel 304L - Resto 9๐ณ๐ฑ
Custom Exhaust System, classic 911 / 912 / 914
Made-to-order exhausts for the early cars, from a Dutch classic Porsche specialist.
Exhaust901g-seriesStainless Steel 304L - Ferrita Sweden AB๐ธ๐ช
Stainless Steel Exhaust System, 911
Swedish-made stainless systems catalogued per generation rather than sold as universal fitments.
Exhaust996997Stainless Steel 304L - Ferrita Sweden AB๐ธ๐ช
Stainless Steel Exhaust System, 911 (993)
The 993-specific fitment โ stainless replacement for a car whose original systems are long gone.
Exhaust993Stainless Steel 304L - Ferrita Sweden AB๐ธ๐ช
Stainless Steel Exhaust System, 911 (964)
The 964 fitment from the same Swedish range.
Exhaust964Stainless Steel 304L - Dansk / SSI (JP Group)๐ฉ๐ฐ
SSI Stainless Steel Heat Exchangers, 911 / 930 (1975โ83)
Stainless remake of the original Porsche heat exchanger design, and the upgrade air-cooled owners converge on more than any other.
Exhaustg-series901Stainless Steel 304L - Dansk / SSI (JP Group)๐ฉ๐ฐ
SSI 38 mm Exhaust Headers with Heat Exchangers, 911 / 911 SC (1966โ79)
38 mm primary headers that keep the heat exchangers โ the performance option that does not cost you cabin heat.
Exhaust901g-seriesStainless Steel 304L - Dansk / SSI (JP Group)๐ฉ๐ฐ
SSI Exhaust Manifolds with Catalytic Converters, air-cooled 911
SSI manifolds supplied with catalysts, for owners who want the upgrade and an MOT.
Exhaustg-series964Stainless Steel 304L - Leistritz๐ฉ๐ช
Original Equipment Muffler, 911 (1965โ74)
The factory-fitted muffler for the early cars, from Porsche's original exhaust supplier โ historic rather than current production.
Exhaust901Stainless Steel 304L - Dundon Motorsportsโ๐บ๐ธ
Pre-Owned GT3 321 Side Muffler Deletes for 997/991
Dundon Motorsports exhaust listed for the 991, 997. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991997Stainless Steel 321 - Dundon Motorsportsโ๐บ๐ธ
Street Header Power Package - 991.1 Carrera S (3.8L)
Dundon Motorsports exhaust listed for the 991. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991 - Dundon Motorsportsโ๐บ๐ธ
MR-Spec Diffuser Mounted Valve Cooling Duct Kit - 992 GT3RS-MR
Dundon Motorsports exhaust listed for the 992. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust992 - Dundon Motorsportsโ๐บ๐ธ
991 GT3/RS Lifetime Vented Titanium Tips
Dundon Motorsports exhaust listed for the 991. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991Titanium (grade not disclosed) - Dundon Motorsportsโ๐บ๐ธ
992 GT3/RS Lifetime Vented Titanium Tips
Dundon Motorsports exhaust listed for the 992. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust992Titanium (grade not disclosed) - Dundon Motorsportsโ๐บ๐ธ
Pre-Owned 991 GT3/RS Street Header Lifetime Muffler Power Package
Dundon Motorsports exhaust listed for the 991. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991 - Dundon Motorsportsโ๐บ๐ธ
991 Street Header to Muffler Connector - 3.0"
Dundon Motorsports exhaust listed for the 991. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991 - Dundon Motorsportsโ๐บ๐ธ
991 and 997 Inconel Megaphone Center Muffler Delete "Crack Pipe" Exhaust
Dundon Motorsports exhaust listed for the 991, 997. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991997Inconel (grade not disclosed) - Dundon Motorsportsโ๐บ๐ธ
997.2 GT3RS Long Tubeย Street Header Exhaust System
Dundon Motorsports exhaust listed for the 997. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust997 - Dundon Motorsportsโ๐บ๐ธ
997.1 GT3 Long Tubeย Street Header Exhaust System
Dundon Motorsports exhaust listed for the 997. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust997 - Dundon Motorsportsโ๐บ๐ธ
GT3 347 Side Muffler Deletes for 997/991
Dundon Motorsports exhaust listed for the 991, 997. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991997 - Dundon Motorsportsโ๐บ๐ธ
991.2 GT3 Long Tube Street Header Exhaust System
Dundon Motorsports exhaust listed for the 991. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991 - Dundon Motorsportsโ๐บ๐ธ
991.2 GT3RS Long Tube Street Header Exhaust System
Dundon Motorsports exhaust listed for the 991. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991 - Dundon Motorsportsโ๐บ๐ธ
Nurburgring Quiet Tips
Dundon Motorsports exhaust listed for the 992, 991, 997. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust992991997 - Dundon Motorsportsโ๐บ๐ธ
997.2 GT3 Long Tubeย Street Header Exhaust System
Dundon Motorsports exhaust listed for the 997. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust997 - Dundon Motorsportsโ๐บ๐ธ
997.1 GT3RS Long Tubeย Street Header Exhaust System
Dundon Motorsports exhaust listed for the 997. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust997 - Dundon Motorsportsโ๐บ๐ธ
991.2 GT3 Touring Long Tube Street Header Exhaust System
Dundon Motorsports exhaust listed for the 991. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991 - Dundon Motorsportsโ๐บ๐ธ
Street Header/Lifetime Muffler Power Package (2007-2008 997.1 GT3)
Dundon Motorsports exhaust listed for the 997. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust997 - Dundon Motorsportsโ๐บ๐ธ
D3 Street Header/93mm Intake Kit/Optional Lifetime Muffler Power Package (2014-2016 991.1 GT3)
Dundon Motorsports exhaust listed for the 991. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991 - Dundon Motorsportsโ๐บ๐ธ
Street Header/Lifetime Muffler Power Package (2018-2019 991.2 Touring)
Dundon Motorsports exhaust listed for the 991, 997. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991997 - Dundon Motorsportsโ๐บ๐ธ
Street Header/Lifetime Muffler Power Package (2014-2016 991.1 GT3)
Dundon Motorsports exhaust listed for the 991. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991 - Dundon Motorsportsโ๐บ๐ธ
D3 Street Header/93mm Intake Kit/Optional Lifetime Muffler Power Package (2018-2019 991.2 Touring)
Dundon Motorsports exhaust listed for the 991, 997. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991997 - Dundon Motorsportsโ๐บ๐ธ
991.1 GT3RS Street Header, 93mm Intake Kit, Optional Lifetime Muffler Exhaust D3 Power Package
Dundon Motorsports exhaust listed for the 991. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991 - Dundon Motorsportsโ๐บ๐ธ
Street Header/Lifetime Muffler Power Package (2016 991.1 GT3RS)
Dundon Motorsports exhaust listed for the 991. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991 - Dundon Motorsportsโ๐บ๐ธ
D3 Street Header/93mm Intake Kit/Optional Lifetime Muffler Power Package (2019-2020 991.2 GT3RS)
Dundon Motorsports exhaust listed for the 991. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991 - Dundon Motorsportsโ๐บ๐ธ
Street Header/Lifetime Muffler Power Package (2019-2020 991.2 GT3RS)
Dundon Motorsports exhaust listed for the 991. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991 - Dundon Motorsportsโ๐บ๐ธ
D3 Street Header/93mm Intake Kit/Optional Lifetime Muffler Power Package (2018-2019 991.2 GT3)
Dundon Motorsports exhaust listed for the 991. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991 - Dundon Motorsportsโ๐บ๐ธ
Street Header/Lifetime Muffler Power Package (2018-2019 991.2 GT3)
Dundon Motorsports exhaust listed for the 991. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991 - Dundon Motorsportsโ๐บ๐ธ
Street Header/Lifetime Muffler Power Package (2010-2011 997.2 GT3)
Dundon Motorsports exhaust listed for the 997. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust997 - Dundon Motorsportsโ๐บ๐ธ
Street Header/Lifetime Muffler Power Package (2010-2011 997.2 GT3RS)
Dundon Motorsports exhaust listed for the 997. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust997 - Dundon Motorsportsโ๐บ๐ธ
Race Header/Megaphone "Crack Pipe" Power Package (2007-2009 997.1 Cup)
Dundon Motorsports exhaust listed for the 997. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust997 - Dundon Motorsportsโ๐บ๐ธ
Race Header/Megaphone "Crack Pipe" Power Package (2012-2016 991.1 Cup)
Dundon Motorsports exhaust listed for the 991. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991 - Dundon Motorsportsโ๐บ๐ธ
Race Header/Megaphone "Crack Pipe" Power Package (2010-2011 997.2 Cup)
Dundon Motorsports exhaust listed for the 997. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust997 - Dundon Motorsportsโ๐บ๐ธ
Race Header/Megaphone "Crack Pipe" Power Package (2018-2019 991.2 Cup)
Dundon Motorsports exhaust listed for the 991, 997. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991997 - Dundon Motorsportsโ๐บ๐ธ
991.2 Cup Race Header, "Crack Pipe" Exhaust, 93mm Plenum Intake D3 Power Package
Dundon Motorsports exhaust listed for the 991, 997. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991997 - Dundon Motorsportsโ๐บ๐ธ
911R D3 Street Header, 93mm Intake Kit, Optional Lifetime Muffler Exhaust Power Package
Dundon Motorsports exhaust listed for the 991. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991 - Dundon Motorsportsโ๐บ๐ธ
Street Header Exhaust Power Package (2020 991.2 Speedster)
Dundon Motorsports exhaust listed for the 991, 997. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991997 - Dundon Motorsportsโ๐บ๐ธ
991.1 GT3 Long Tube Street Header Exhaust System
Dundon Motorsports exhaust listed for the 991. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991 - Dundon Motorsportsโ๐บ๐ธ
997.2 Cup Race Header, "Crack Pipe" Exhaust, Intake Manifold D4R Power Package
Dundon Motorsports exhaust listed for the 997. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust997 - Dundon Motorsportsโ๐บ๐ธ
GT2RS "Inconhell" Street Exhaust
Dundon Motorsports exhaust listed for the 991, 997. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991997 - Dundon Motorsportsโ๐บ๐ธ
GT2RS "Inconhell" Race Exhaust
Dundon Motorsports exhaust listed for the 991, 997. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991997 - Dundon Motorsportsโ๐บ๐ธ
Street Header/Lifetime Muffler Power Package (2007-2008 997.1 GT3RS)
Dundon Motorsports exhaust listed for the 997. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust997 - Dundon Motorsportsโ๐บ๐ธ
991.1/991.2 GT3/GT3RS Lifetime Center Muffler
Dundon Motorsports exhaust listed for the 991. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991 - Dundon Motorsportsโ๐บ๐ธ
Pre-Owned 991 GT3/RS Long Tube Street Header Exhaust System
Dundon Motorsports exhaust listed for the 991. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991 - Dundon Motorsportsโ๐บ๐ธ
Titanium Ultralight GT3/RS Muffler
Dundon Motorsports exhaust listed for the 992, 991, 997. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust992991997Titanium (grade not disclosed) - Dundon Motorsportsโ๐บ๐ธ
Cat-Back Valved Adapters for 992 GT3 OEM Headers
Dundon Motorsports exhaust listed for the 992. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust992 - Dundon Motorsportsโ๐บ๐ธ
992 GT3 Lifetime Center Muffler
Dundon Motorsports exhaust listed for the 992. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust992 - Dundon Motorsportsโ๐บ๐ธ
992 GT3 Exhaust: Valved Cat-Back Exhaust System (Non-EU Version)
Dundon Motorsports exhaust listed for the 992. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust992 - Dundon Motorsportsโ๐บ๐ธ
991 Catted Valve Section Pair - 3.0" Pneumatic
Dundon Motorsports exhaust listed for the 991. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991 - Dundon Motorsportsโ๐บ๐ธ
991 Catted Valve Section Pair - 2.5" Pneumatic
Dundon Motorsports exhaust listed for the 991. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991 - Dundon Motorsportsโ๐บ๐ธ
991 GT3/RS Race Header Kit (no valve sections)
Dundon Motorsports exhaust listed for the 991. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991 - Dundon Motorsportsโ๐บ๐ธ
991 Crack Pipe Connectors for Dundon Street Headers
Dundon Motorsports exhaust listed for the 991. Specification below is what the seller states; construction is not disclosed on the listing.
Exhaust991