Pipe Downpipe
Is it illegal to remove your catalytic converters and replace them with a downpipe and a race pipe?
I have a Mazdaspeed 3 and i want to remove both of the Cats and replace them with a downpipe and a racing pipe and mate them to a turbo cat back system. Is it illegal to take the cats off? How about just one? And does anyone know of a good HIGH FLOW cat for a mazdaspeed?
It,s illegal and I wouldn’t do it anyway. Most Japanese cats are free flow anyway. If you remove them, you’d change the exhaust temp, which feeds back to the O2 sensor, which gives different readings to fuel management, and you’ll go nuts trying to get the mixture correct again.
|
|
Rothenberger 72159 NA Drop-head Auger – Ideal for particularly tight pipe bends, branches, and small-diameter drain downpipes 72159 Ideal for particularly tight pipe bends, branches, and small-diameter drain downpipes… |
|
|
2.5 Stainless Steel Straight Tubing – 2 Foot (24) $20.00 2.5″ Diameter Stainless Steel Straight Tubing, 2 foot (24″) precut section. 304 Grade / T304 SS, 16 Gauge (.065″) corrosion resistent tubing. Easy to cut and use to fab downpipes, exhaust systems, intake systems, and intercooler pipes. Made in USA to the highest quality standards…. |
|
|
O2 Sensor Stainless Weld Bung $3.75 Stainless Steel. O2 Sensor Bung…. |
|
|
2.25 Stainless Steel Straight Tubing – 2 Foot (24) $16.00 2.25″ Diameter Stainless Steel Straight Tubing, 2 foot (24″) precut section. 304 Grade / T304 SS, 16 Gauge (.065″) corrosion resistent tubing. Easy to cut and use to fab downpipes, exhaust systems, intake systems, and intercooler pipes. Made in USA to the highest quality standards…. |
|
|
2007 Chevy Silverado MBRP Turbo Downpipe GKAL001 Front Pipe $170.23 GKAL001 MBRP Turbo Downpipe fits: 2006-2007 Chevy Silverado, 2006-2007 GMC Sierra. GKAL001 MBRP Turbo Downpipe Features – Bolster performance by removing turbo-outlet constrictions. Custom built for your specific year, make and model truck. Mandrel-bent tubing delivers free-flowing power. Allows your turbo to spin and spool up much faster. Amplifies horsepower and torque. MBRP Turbo Downpipe, MBRP Exhaust Downpipe, MBRP Turbo Diesel Downpipes. MBRP GKAL001. |
|
|
2005 Chevy Silverado MBRP Turbo Downpipe GMAL401 Front Pipe $152.06 GMAL401 MBRP Turbo Downpipe fits: 2001-2005 Chevy Silverado, 2001-2005 GMC Sierra. GMAL401 MBRP Turbo Downpipe Features – Bolster performance by removing turbo-outlet constrictions. Custom built for your specific year, make and model truck. Mandrel-bent tubing delivers free-flowing power. Allows your turbo to spin and spool up much faster. Amplifies horsepower and torque. MBRP Turbo Downpipe, MBRP Exhaust Downpipe, MBRP Turbo Diesel Downpipes. MBRP GMAL401. |
|
|
2007 Chevy Silverado MBRP Turbo Downpipe GMAL421 Front Pipe $134.16 GMAL421 MBRP Turbo Downpipe fits: 2006-2007 Chevy Silverado, 2006-2007 GMC Sierra. GMAL421 MBRP Turbo Downpipe Features – Bolster performance by removing turbo-outlet constrictions. Custom built for your specific year, make and model truck. Mandrel-bent tubing delivers free-flowing power. Allows your turbo to spin and spool up much faster. Amplifies horsepower and torque. MBRP Turbo Downpipe, MBRP Exhaust Downpipe, MBRP Turbo Diesel Downpipes. MBRP GMAL421. |
|
|
2005 Chevy Silverado MBRP Turbo Downpipe GMS9401 Front Pipe $181.71 GMS9401 MBRP Turbo Downpipe fits: 2001-2005 Chevy Silverado, 2001-2005 GMC Sierra. GMS9401 MBRP Turbo Downpipe Features – Bolster performance by removing turbo-outlet constrictions. Custom built for your specific year, make and model truck. Mandrel-bent tubing delivers free-flowing power. Allows your turbo to spin and spool up much faster. Amplifies horsepower and torque. MBRP Turbo Downpipe, MBRP Exhaust Downpipe, MBRP Turbo Diesel Downpipes. MBRP GMS9401. |
|
|
2007 Chevy Silverado MBRP Turbo Downpipe GMS9421 Front Pipe $158.75 GMS9421 MBRP Turbo Downpipe fits: 2006-2007 Chevy Silverado, 2006-2007 GMC Sierra. GMS9421 MBRP Turbo Downpipe Features – Bolster performance by removing turbo-outlet constrictions. Custom built for your specific year, make and model truck. Mandrel-bent tubing delivers free-flowing power. Allows your turbo to spin and spool up much faster. Amplifies horsepower and torque. MBRP Turbo Downpipe, MBRP Exhaust Downpipe, MBRP Turbo Diesel Downpipes. MBRP GMS9421. |
|
|
2004 GMC Sierra MBRP Turbo Downpipe GM8425 Down Pipe $314.99 GM8425 MBRP Turbo Downpipe fits: 2001-2004 Chevy Silverado, 2001-2004 GMC Sierra. GM8425 MBRP Turbo Downpipe Features – Bolster performance by removing turbo-outlet constrictions. Custom built for your specific year, make and model truck. Mandrel-bent tubing delivers free-flowing power. Allows your turbo to spin and spool up much faster. Amplifies horsepower and torque. MBRP Turbo Downpipe, MBRP Exhaust Downpipe, MBRP Turbo Diesel Downpipes. MBRP GM8425. |
|
|
Megan Racing 1 Piece Downpipe And Test Pipe Hyundai Genesis 2.0T 09+ $324.99 Megan Racing 1 Piece Downpipe And Test Pipe Hyundai Genesis 2.0T 09+ After exhaust leaves the turbocharger it enters the downpipe. The downpipe is like any other exhaust component, it should let gasses through with as few bends as possible to maximiz |
|
|
Invidia 1 Piece Downpipe And Test Pipe Mitsubishi EVO X 08+ $349.99 Invidia 1 Piece Downpipe And Test Pipe Mitsubishi EVO X 08+ Invidia produces high performance parts for today’s hottest tuner cars. Invidia knows that automotive enthusiasts are constantly looking for ways to extract more power from their engines and |
|
|
Invidia Downpipe With Cat and Test Pipe Mitsubishi EVO X 08+ $649.99 Invidia Downpipe With Cat and Test Pipe Mitsubishi EVO X 08+ Invidia produces high performance parts for today’s hottest tuner cars. Invidia knows that automotive enthusiasts are constantly looking for ways to extract more power from their engines an |
|
|
Neuspeed Downpipe Audi TT 1.8T 180HP 00-06 $289.95 Neuspeed Downpipe Audi TT 1.8T 180HP 00-06The NEUSPEED hi-flow downpipe is all stainless steel: flange, pipe and flex joint! We improved on the factory design by eliminating the "S" bend and enlarging the pipe to 60mm. Professional installa |
|
|
Neuspeed Downpipe Volkswagen Beetle 1.8T 98+ $289.95 Neuspeed Downpipe Volkswagen Beetle 1.8T 98+The NEUSPEED hi-flow downpipe is all stainless steel: flange, pipe and flex joint! We improved on the factory design by eliminating the “S” bend and enlarging the pipe to 60mm. Professional installation is |
|
|
Neuspeed Downpipe Volkswagen Golf IV 1.8T 98-06 $289.95 Neuspeed Downpipe Volkswagen Golf IV 1.8T 98-06The NEUSPEED hi-flow downpipe is all stainless steel: flange, pipe and flex joint! We improved on the factory design by eliminating the “S” bend and enlarging the pipe to 60mm. Professional installation |
|
|
Neuspeed Downpipe Volkswagen Jetta IV 1.8T 99.5-05 $289.95 Neuspeed Downpipe Volkswagen Jetta IV 1.8T 99.5-05The NEUSPEED hi-flow downpipe is all stainless steel: flange, pipe and flex joint! We improved on the factory design by eliminating the “S” bend and enlarging the pipe to 60mm. Professional installati |
|
|
Injen Downpipe Dodge SRT4 04-05 $318.99 Injen Downpipe Dodge SRT4 04-05Injen Technology Down Pipe for the Dodge SRT-4 04-05. The SES8022DP is built from 76mm mandrel bent stainless steel tubing. The connecting head to the turbo is constructed from a one-piece cast stainless steel collector |
|
|
Neuspeed Stainless Downpipe Audi A3 2.0T 06+ $1299.95 Neuspeed Stainless Downpipe Audi A3 2.0T 06+The NEUSPEED hi-flow downpipe is all stainless steel: flange, pipe, catalyst and flex joint! We improved on the factory design by opening the diameter to 80mm after the turbo and 70mm after our new hi-flow |
|
|
TurboXS Downpipe Mitsubishi EVO X 08+ $194.99 TurboXS Downpipe Mitsubishi EVO X 08+Exhausts depend on flow to create horsepower and the OEM Catalytic converter is a main piece that will stop the flow of exhaust. The Evolution X Front Pipe/Downpipe was designed to remove the 1st catalytic convert |
|
|
TurboXS Downpipe Mitsubishi EVO VIII IX 03-07 $298.99 TurboXS Downpipe Mitsubishi EVO VIII IX 03-07Evolution VIII Down-pipe: T304 Stainless Full 3 inch with a custom flange that allows the factory cat pipe to bolt up to the exhaust system without having to neck down the TurboXS Evo8 Down-pipe. |
|
|
Neuspeed Stainless Downpipe Volkswagen GTI MKV 06+ $1299.95 Neuspeed Down Pipe VW GTI MKV 06+The NEUSPEED hi-flow downpipe is all stainless steel: flange, pipe, catalyst and flex joint! We improved on the factory design by opening the diameter to 80mm after the turbo and 70mm after our new hi-flow cat for a p |
|
|
HKS Downpipe 65mm Mitsubishi EVO Turbo 03-04 $489.99 HKS Downpipe 65mm Mitsubishi EVO Turbo 03-04For maximum exhaust flow and quicker turbo spool up, HKS offers downpipes for racing use. Each mandrel bent down pipe is a bolt-on application that will mount to the stock turbo and/or to a HKS turbo upgrad |
|
|
HKS Downpipe 70mm Mitsubishi EVO Turbo 03-04 $344.99 HKS Downpipe Mitsubishi EVO Turbo 03-04For maximum exhaust flow and quicker turbo spool up, HKS offers downpipes for racing use. Each mandrel bent down pipe is a bolt-on application that will mount to the stock turbo and/or to a HKS turbo upgrade kit |
|
|
HKS Downpipe Mazda RX7 Turbo 87-91 $294.99 HKS Downpipe Mazda RX7 Turbo 87-91For maximum exhaust flow and quicker turbo spool up, HKS offers downpipes for racing use. Each mandrel bent down pipe is a bolt-on application that will mount to the stock turbo and/or to a HKS turbo upgrade kit. Cer |
|
|
HKS Downpipe Mazda RX7 Turbo 93-96 $329.99 HKS Downpipe Mazda RX7 Turbo 93-96For maximum exhaust flow and quicker turbo spool up, HKS offers downpipes for racing use. Each mandrel bent down pipe is a bolt-on application that will mount to the stock turbo and/or to a HKS turbo upgrade kit. Cer |
|
|
HKS Downpipe Mitsubishi EVO X 08+ $298.99 HKS Downpipe Mitsubishi EVO X 08+For maximum exhaust flow and quicker turbo spool up, HKS offers downpipes for racing use. Each mandrel bent down pipe is a bolt-on application that will mount to the stock turbo and/or to a HKS turbo upgrade kit. Cert |
|
|
HKS Downpipe Subaru WRX Turbo 01-03 $194.99 HKS Downpipe Subaru WRX Turbo 01-03For maximum exhaust flow and quicker turbo spool up, HKS offers downpipes for racing use. Each mandrel bent down pipe is a bolt-on application that will mount to the stock turbo and/or to a HKS turbo upgrade kit. Ce |
|
|
HKS Downpipe Toyota Supra Turbo 86.5-92 $249.99 HKS Downpipe Toyota Supra Turbo 86.5-92For maximum exhaust flow and quicker turbo spool up, HKS offers downpipes for racing use. Each mandrel bent down pipe is a bolt-on application that will mount to the stock turbo and/or to a HKS turbo upgrade kit |
|
|
HKS Downpipe Toyota Supra Turbo 93-98 $214.99 HKS Downpipe Toyota Supra Turbo 93-98For maximum exhaust flow and quicker turbo spool up, HKS offers downpipes for racing use. Each mandrel bent down pipe is a bolt-on application that will mount to the stock turbo and/or to a HKS turbo upgrade kit. |
|
|
Injen Downpipe Subaru WRX/STI 02-06 $349.99 Injen Downpipe Subaru WRX/STI 02-06Injen's down pipe is a must have for the Subaru WRX and STi. The SES1201DP is built from 76mm mandrel bent stainless steel tubing for maximum flow and durability. The connecting head to the turbo is constructed f |
|
|
Injen Downpipe Mitsubishi EVO VIII/MR/IX 03-06 $304.99 Injen Downpipe Mitsubishi EVO VIII/MR/IX 03-06Downpipe is built from 76mm mandrel bent 100% 304 stainless steel tubing. The Down Pipe will maximize exhaust flow, and also eliminate restriction. |
|
|
Neuspeed Stainless Downpipe Volkswagen Jetta V 2.0T FSI 06+ $1299.95 Neuspeed Down Pipe VW Jetta V 2.0T FSI 06+The NEUSPEED hi-flow downpipe is all stainless steel: flange, pipe, catalyst and flex joint! We improved on the factory design by opening the diameter to 80mm after the turbo and 70mm after our new hi-flow ca |
|
|
Oettinger Downpipe With Motorsport Catalytic Converter Volkswagen Golf V GTI 06+ $848.99 Oettinger Downpipe With Motorsport Catalytic Converter Volkswagen Golf V GTI 06+OETTINGER down pipe and catalytic converter manufactured from high grade polished stainless steel. With a larger bore 70mm. For a sporty sound and more power. Down pipe |
|
|
Supersprint Turbo Downpipe BMW E92 335i Coupe 07+ $2988.99 Supersprint Turbo Downpipe BMW E92 335i Coupe 07+The turbo down pipe is manufactured from 304 stainless steel using all mandrel bent tubing and each pipe is 65mm in diameter resulting in ultra low backpressure, assuring instant turbo spool up for max |
|
|
HKS Downpipe – 75mm [87-91 Mazda RX-7 Turbo] $285 “For maximum exhaust flow and quicker turbo spool up, HKS offers downpipes for racing use. Each mandrel bent down pipe is a bolt-on application that will mount to the stock turbo and/or to a HKS turbo upgrade kit. Certain HKS Downpipe applications are made from coated stainless steel or polished SUS304 stainless steel piping. All HKS down pipes are FOR OFF ROAD USE ONLY.;;Requires flange modification for use with stock main cat.” |
|
|
HKS Downpipe – 75mm [93-96 Mazda RX-7 Turbo] $308.75 “For maximum exhaust flow and quicker turbo spool up, HKS offers downpipes for racing use. Each mandrel bent down pipe is a bolt-on application that will mount to the stock turbo and/or to a HKS turbo upgrade kit. Certain HKS Downpipe applications are made from coated stainless steel or polished SUS304 stainless steel piping. All HKS down pipes are FOR OFF ROAD USE ONLY.;;Requires flange modification for use with stock main cat.” |
|
|
HKS Downpipe – 75mm [86-92 Toyota Supra Turbo] $247 “For maximum exhaust flow and quicker turbo spool up, HKS offers downpipes for racing use. Each mandrel bent down pipe is a bolt-on application that will mount to the stock turbo and/or to a HKS turbo upgrade kit. Certain HKS Downpipe applications are made from coated stainless steel or polished SUS304 stainless steel piping. All HKS down pipes are FOR OFF ROAD USE ONLY.;;Requires flange modification for use with stock main cat.” |
|
|
HKS Downpipe – 75mm [93-98 Toyota Supra Turbo] $204.25 “For maximum exhaust flow and quicker turbo spool up, HKS offers downpipes for racing use. Each mandrel bent down pipe is a bolt-on application that will mount to the stock turbo and/or to a HKS turbo upgrade kit. Certain HKS Downpipe applications are made from coated stainless steel or polished SUS304 stainless steel piping. All HKS down pipes are FOR OFF ROAD USE ONLY.;;Requires flange modification for use with stock main cat.” |
|
|
Agency Power Downpipes – Racing Downpipe [02-07 Impreza WRX/STI] $350 “Continually developing and enhancing the Subaru WRX and STI cars has been the goal of Agency Power. With a complete line up to make your Subaru the best in it competition, Agency Power has just released their all new Racing Downpipe. This downpipe fits all Subaru WRX or STI cars from 2002 to 2007. The downpipe is full stainless steel with a cast bell mouth upper section. The thich flanges ensure a tight and strong seal. The downpipe deletes both your catalytic converters and bolts to all factory style turbos. The downpipes precision welds and polished piping give the AP Racing Downpipe that cutting edge. Each downpipe includes a bung for an aftermarket air/fuel sensor as well as a bung for the factory O2 sensor.;;;;When adding an Agency Power Racing Downpipe to your Subaru WRX or STI, you will gain more horsepower and overall performance. The downpipe allows for better flow of the turbine and wastegate gasses. Unlike the factor downpipe that blocks the wastegate gasses from being released in an efficient manner, the AP downpipe has a large bell mouth which allows for both to flow smoothly out and down the pipe. The 3 inch diameter piping is the perfect size for the turbo cars from stock hp to 500 whp. The bellmouth will also allow for a little boost increase since there is less restriction. Mate this downpipe up with your aftermarket catback exhaust or one of our Agency Power catbacks for an amazing sound and almost 25 wheel horsepower gain.” |
|
|
HKS Stainless Steel Downpipe Mitsubishi EVO VIII Turbo 03-04 $489.99 HKS Stainless Steel Downpipe Mitsubishi EVO VIII Turbo 03-04For maximum exhaust flow and quicker turbo spool up, HKS offers downpipes for racing use. Each mandrel bent down pipe is a bolt-on application that will mount to the stock turbo and/or to a |
|
|
Injen Downpipe w/ Catalytic Converter Subaru WRX/STI 02-06 $494.99 Injen Downpipe w/ Catalytic Converter Subaru WRX/STI 02-06Injen's down pipe is a must have for the Subaru WRX and STi. The SES1201DP is built from 76mm mandrel bent stainless steel tubing for maximum flow and durability. The connecting head to the |
|
|
APR Tuned Stainless Steel Cat and Downpipe Replacement System Audi TT 1.8T 00-05 $988.99 APR Tuned Stainless Steel Cat and Downpipe Replacement System Audi TT 1.8T 225 00-05The 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. With TIG we |
|
|
RD Sport X-Flow Sport Downpipe w/Catalytic Converters and Resonators BMW M3 E92 08+ $3379.99 RD Sport X-Flow Sport Downpipe w/Catalytic Converters and Resonators BMW M3 E92 08+The stainless X-Flow downpipe maintains superb exhaust flow by eliminating the secondary cats while maintaining the flow characteristics that an X-pipe provides. The i |
|
|
RD Sport X-Flow Sport Downpipe w/Resonators BMW M3 E92 08+ $1279.99 RD Sport X-Flow Sport Downpipe w/Resonators BMW M3 E92 08+The stainless X-Flow downpipe maintains superb exhaust flow by eliminating the secondary cats while maintaining the flow characteristics that an X-pipe provides. The included resonators help m |
|
|
Agency Power Downpipes – Racing Downpipe [03-05 Evolution VIII] $300 Stainless Steel Down pipe |
|
|
Invidia Downpipe [02-Up Subaru Impreza WRX] $387.99 Invidia Downpipe |
Leave a Comment