| MFG | Name | Your Price | |
 | APR | 00-02 Audi S4 B5 S4 Cat & Downpipe System 6-Speed Only: APR's S4 Cat and Downpipe Exhaust replaces the the exhaust from the turbochargers to behind the lower factory catalytic converters. The system removes the factory pre-cats right off of the turbocharger and includes six separate components. Included a...more | $1,639.00 | |
 | APR | 00-05 VW Golf-Jetta - Beetle 1.8t 2.5in Downpipe (63.5mm dia): 2.5" downpipe for the 1.8T that includes a high flow catalytic converter for the stock turbocharger. Made of Stainless Steel....more | $509.00 | |
 | APR | 00-05 VW Golf-Jetta IV 1.8t 3.0in Downpipe: A 3.0" downpipe for the 1.8T that includes a high flow catalytic converter for the stock turbocharger. Stainless Steel construction....more | $559.00 | |
 | APR | 2004-07 Audi S4 4.2 Quattro 6spd Stainless Steel Downpipes: A set of downpipes is also available for the S4's. This system replaces the 4-cat factory setup with a pair of metal matrix catalysts. APR downpipes will only fit with an APR catback system. In testing, a full APR exhaust produces gains of 25hp and 3...more | $1,129.00 | |
 | APR | 2004-07 Audi S4 4.2 Quattro Tip Stainless Steel Downpipes: A set of downpipes is also available for the S4's. This system replaces the 4-cat factory setup with a pair of metal matrix catalysts. APR downpipes will only fit with an APR catback system. In testing, a full APR exhaust produces gains of 25hp and 3...more | $1,219.00 | |
| GMP | 318: 1992 - 1998 ...more | $959.00 | |
| GMP | 335i TT Down Pipes w/Cats: 2007 - 2008 ...more | $1,795.00 | |
| GMP | 335i TT Down Pipes w/o Cats: 2007 - 2008 ...more | $1,395.00 | |
| GMP | 525 2-Valve: 1989 ...more | $989.00 | |
| GMP | 525 4-Valve: 1989 - 1996 ...more | $989.00 | |
| GMP | 528 Touring Muffler only: 1997 - 2005 ...more | $817.00 | |
| GMP | 911 Catalytic Converter Test Pipe*: 1975 - 1989 ...more | $369.00 | |
| GMP | 911 SC Carrera Race Outlets 3"" : 1975 - 1989 ...more | $345.00 | |
| GMP | 930/911 Turbo Catalytic Converter Test Pipe*: 1975 - 1989 ...more | $346.00 | |
| GMP | 930/911 Turbo Complete Installation Kit: ...more | $647.00 | |
| GMP | 944 Non-Turbo Catalytic Converter Test Pipe*: 1983 - 1989 ...more | $619.00 | |
| GMP | 944 Turbo Catalytic Converter Test Pipe*: 1985 - 1989 ...more | $868.00 | |
| GMP | 993 Catalytic Converter Test Pipe*: 1995 ...more | $654.00 | |
| GMP | 996 Optional Quad Double Wall Tips Upgrade, Pair: 1999 - 2004 ...more | $354.00 | |
| GMP | 996TT Quad Tips (for FPOR-0860 & 0865): 2001 - 2005 ...more | $619.00 | |
| GMP | A3 / GLI / GTI FWD 3"" Downpipe 2.0T, All : 2005 - 2008 ...more | $509.00 | |
| GMP | A3 / GLI / GTI FWD 3"" Downpipe 2.0T, All : 2006 - 2009 ...more | $509.00 | |
| GMP | A3 / GLI / GTI FWD 3"" Downpipe 2.0T, All : 2006 - 2009 ...more | $509.00 | |
| GMP | A3 / GLI / GTI FWD 3"" Downpipe 2.0T, All : 2006 - 2008 ...more | $639.00 | |
 | APR | A6 2.7T APR Cat and Downpipe Replacement System: APR's A6 Cat and Downpipe Exhaust replaces the the exhaust from the turbochargers to behind the lower factory catalytic converters. The system removes the factory pre-cats right off of the turbocharger and includes six separate components. Included a...more | $1,699.00 | |
| GMP | A6 Turbo Downpipes,Testpipes, Hi Flo Cats** 2.7T 6spd: 2000 - 2005 ...more | $1,699.00 | |
 | Milltek | A6-allroad 2.7T Downpipes/Cats: The Milltek 2.7T Downpipes/Cats set is here! Awesome high-flow technology for your 2.7T A6 or allroad (all model years). Constructed of 60mm stainless with proper fitting of all sensors and mount points. Notice the full flex-pipe construction that in...more | $1,865.00 | |
 | APR | APR Downpipe Reducer: This reducer is for installing an APR downpipe to a stock MK5 cat-back section....more | $15.00 | |
 | APR | Audi A3/VW Golf/Jetta/Passat 2.0T Downpipe: The APR downpipe features a high-flowing 100-cell metal high flow catalyst. With TIG welding, fully stainless construction, and CNC'ed hangers, you will not find a higher quality system on the market. With APR exhaust-specific software, peak gains of...more | $699.00 | |
 | APR | Audi A4 B7 2.0T AWD Manual 2.5 Inch Downpipe: On an A4, the catalytic converter is bolted to the turbocharger and then the exhaust begins with the downpipe. This 2.5 Inch stainless steel, mandrel bent downpipe includes the gasket and is ready to install....more | $499.00 | |
 | APR | Audi A4 B7 2.0T FSI Testpipe: Bolts on to the turbo and to the stock downpipe, removing the catalytic converter. You must run special APR Programming with this upgrade. This is a competition-only part suitable for off-road use only....more | $249.00 | |
 | GMP | Audi A5 2.0T AWD 6spd Cat-Test PIpe: This item is for track use only....more | $350.00 | |
 | APR | Audi S3/TT 225 3" Downpipe: The APR downpipe begins at the factory turbocharger with a beautifully shaped 3" pipe with a flex section. It then continues through a high flow catalyst....more | $1,643.00 | |
 | Milltek | Audi TTS Downpipe/Cat (not pictured). 2009-on Milltek: Yep, you are looking at the latest gem in the Milltek stable. The new Audi TTS. Milltek Sport has already completed development on a full turbo-back exhaust for this awesome car. High performance metal catalyst, over-sized 2.75" stainless piping and ...more | $1,299.00 | |
| GMP | B5 S4 Turbo Downpipes, Testpipes, Hi Flo Cats** 2.7T 6spd: 2000 - 2002 ...more | $1,499.00 | |
| GMP | B6 Passat 2.0T Cat Back: 2006 - 2008 ...more | $899.00 | |
| GMP | B6/B7 S4 Quatro Downpipes (w/HJS Cats) 4.2L 6spd: 2004 - 2008 ...more | $1,145.00 | |
| GMP | B6/B7 S4 Quatro Downpipes (w/HJS Cats) 4.2L Tiptronic: 2004 - 2008 ...more | $1,145.00 | |
| GMP | B7 A4 2.0T FSI Cat Test Pipe: 2006 - 2007 ...more | $309.00 | |
| Hamann | Boxster Racing Exhaust Manifold ( 2.5 ): ...more | $2,774.00 | |
| Hamann | Boxster Racing Exhaust Manifold ( 2.7 & S ): ...more | $2,774.00 | |
| GMP | C2 Turbo Catalytic Converter Test Pipe*: 1990 - 1994 ...more | $369.00 | |
| GMP | C2/3.6 Turbo Complete Installation Kit: ...more | $647.00 | |
| GMP | C2/4 Complete Installation Hardware Kit: ...more | $253.00 | |
| GMP | Carrera 2/4 Catalytic Converter Test Pipe*: 1990 - 1994 ...more | $346.00 | |
| GMP | Cooper S: 2003 - 12/31/03 ...more | $1,083.00 | |
| APR | Downpipe - Audi A6 2.7T 2000-03: ...more | $1,729.00 | |
| Hamann | E39 - 5 Series 96-03 Racing Exhaust Manifold ( 540i ): ...more | $4,370.00 | |
| Hamann | E52 Z8 Racing Exhaust Manifold: ...more | $4,370.00 | |
| Hamann | F360 Sport Exhaust Manifold w/ 2 Sport Metal Cat ( approx. 24 hp ): ...more | $14,012.50 | |
 | Leistritz | Leistritz European GTI Downpipe w. Lambda Stainless Steel MK2: 191253091C...more | $129.95 | |
 | Renntech | Mercedes C63 Secondary Bypass Pipes: A performance and sound upgrade with this simple install. Adds 8-10hp and works without modifying any O2 sensors....more | $2,495.00 | |
 | Milltek | Milltek 00-02 Audi S4 Downpipes and Cats-6 speed: The Milltek 2.7T Downpipes/Cats set is here! Awesome high-flow technology for your 2.7T A6 or allroad (all model years). Constructed of 60mm stainless with proper fitting of all sensors and mount points. Notice the full flex-pipe construction that in...more | $1,999.00 | |
 | Milltek | Milltek 00-02 Audi S4 Downpipes and Cats-Triptronic: The Milltek 2.7T Downpipes/Cats set is here! Awesome high-flow technology for your 2.7T A6 or allroad (all model years). Constructed of 60mm stainless with proper fitting of all sensors and mount points. Notice the full flex-pipe construction that in...more | $2,499.00 | |
| Milltek | Milltek 2004-on Audi S4 V8 Hiflow Cats and Downpipes-6 Speed: ...more | $1,699.00 | |
| Milltek | Milltek 2004-on Audi S4 V8 Hiflow Cats and Downpipes-TripTronic: ...more | $1,999.00 | |
| Milltek | Milltek Audi C5 A6 4.2 Cats and Downpipes: ...more | $1,999.00 | |
 | Milltek | Milltek V8 4.2 S4 Downpipes and Cats: *MUST Specify 6 Speed or Tiptronic* Milltek is out in front again with the impressive downpipes and cats for the new 4.2 V8 S4. Bolts-in directly to your exhaust manifolds. Replaces your OEM primary cat with a 200-cell platinum-coated metal high-flow...more | $1,995.00 | |
| GMP | MK4 3.00"" Downpipe : 2000 - 2005 ...more | $499.00 | |
| GMP | MK4 3.00"" Downpipe : 2000 - 2005 ...more | $499.00 | |
| GMP | MK4 Golf/GTI Turbo Downpipe 2.5"": 2000 - 2005 ...more | $359.00 | |
| GMP | MK4 GTI-337 Catback 2.5"" w/Sgl Tip: 2003 - 2005 ...more | $789.00 | |
| GMP | MK4 GTI-337 Downpipe 2.5"": 2003 - 2005 ...more | $359.00 | |
| GMP | MK4 Jetta Downpipe 2.5"": 2000 - 2005 ...more | $359.00 | |
| GMP | MK4 RH Drive 2.5"" Downpipe: 2000 - 2005 ...more | $359.00 | |
| Larini | Murcielago Test Pipes: Stainless Steel. Replaces Cats....more | $890.00 | |
 | Tubi | Porsche Carrera GT straight pipes: 2005 Inconel...more | | CALL |
 | SpeedART Porsche | Porsche Cayenne 955 Cat Bypass Pipes: ...more | $1,325.00 | |
 | SpeedART Porsche | Porsche Cayenne 957 Turbo Cat Bypass Pipes: speedART offers a pair of replacement cat-pipes that eliminate the first of two pairs of catalytic converters. The high-polished, stailess steel speedART cat-deletes bolt to the factory turbos re-using OEM gaskets and hardware. The race inspired, dua...more | $1,325.00 | |
| Hamann | R53 - MINI ( 02- ) Sport Exhaust Manifold for Mini S: ...more | $1,102.00 | |
 | Milltek | RS4 Downpipes with Cats: Giant bore with optimized cat placement. Genuine HJS cats....more | $2,199.00 | |
| GMP | TT 225 3"" Downpipe: 2000 - 2006 ...more | $1,649.00 | |
 | B&B | VW MK4 Jetta 1.8T 2.5 Inch Downpipe: Comes with gasket...more | $359.00 | |
 | APR | VW Mk6 GTI Downpipe 2010+: GTI only APR's 2.0T Mk6 Downpipe features the same great design features from APR's Engineering Team and high quality manufacturing incorporating the following: -High Percision Jewelry Grade Tig Welding -304L Low Carbon Stainless Steel Construct...more | $699.00 | |
| APR | VW Transvers Stage III Turbo Kit 2.5 Inch downpipe w/o cat: ...more | $159.00 | |
| APR | VW Transvers Stage III Turbo Kit 3 Inch downpipe with cat: ...more | $449.00 | |
| GMP | X5: 2000 - 2006 ...more | $1,360.00 | |