Circuit Werks
All Circuit Werks Products
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2015-2021 Mercedes Benz C200 C250 C300 W205 M274 GLC 250 X253 E300 E250 E200 W213 Catless Downpipe 
Sold out2015-2021 Mercedes Benz C200 C250 C300 W205 M274 GLC 250 X253 E300 E250 E200 W213 Catless Downpipe
$399.992015-2021 Mercedes Benz C200 C250 C300 W205 M274 GLC 250 X253 E300 E250 E200 W213 Catless Downpipe
$399.99 -
00-04 Porsche Boxster 986 2.7/3.2 Circuit Werks Resonated Test Pipes Frontpipes Midpipes 
Sale00-04 Porsche Boxster 986 2.7/3.2 Circuit Werks Resonated Test Pipes Frontpipes Midpipes
Regular price $449.99 Sale price $399.9900-04 Porsche Boxster 986 2.7/3.2 Circuit Werks Resonated Test Pipes Frontpipes Midpipes
Sale price $399.99 Regular price $449.99 -
05-08 Porsche Boxster Cayman 987.1 Catback Exhaust 
Sold out05-08 Porsche Boxster Cayman 987.1 Catback Exhaust
Regular price $499.99 Sale price $449.9905-08 Porsche Boxster Cayman 987.1 Catback Exhaust
Sale price $449.99 Regular price $499.99 -
00-09 Honda S2000 AP1 AP2 63mm Test Pipe Cat Delete 
Sale00-09 Honda S2000 AP1 AP2 63mm Test Pipe Cat Delete
Regular price $128.99 Sale price $119.9900-09 Honda S2000 AP1 AP2 63mm Test Pipe Cat Delete
Sale price $119.99 Regular price $128.99 -
1997-1999 Porsche Boxster 2.5L 986 Secondary Straight Test Pipes 
Sold out1997-1999 Porsche Boxster 2.5L 986 Secondary Straight Test Pipes
$249.991997-1999 Porsche Boxster 2.5L 986 Secondary Straight Test Pipes
$249.99 -
97-04 Porsche Boxster 986 Models Circuit Werks Catback Exhaust System 
Sold out97-04 Porsche Boxster 986 Models Circuit Werks Catback Exhaust System
Regular price $449.99 Sale price $309.9997-04 Porsche Boxster 986 Models Circuit Werks Catback Exhaust System
Sale price $309.99 Regular price $449.99 -
2005-2008 Porsche Boxster Cayman 987 V1.5 Exhaust with X Pipe 987.1 
Sold out2005-2008 Porsche Boxster Cayman 987 V1.5 Exhaust with X Pipe 987.1
$649.992005-2008 Porsche Boxster Cayman 987 V1.5 Exhaust with X Pipe 987.1
$649.99 -
97-04 Porsche Boxster 986 between Cat & Catback Exhaust C-Pipe Extensions 
Sold out97-04 Porsche Boxster 986 between Cat & Catback Exhaust C-Pipe Extensions
$149.9997-04 Porsche Boxster 986 between Cat & Catback Exhaust C-Pipe Extensions
$149.99 -
HHO o2 Oxygen Sensor Extender Adapter Extension Spacer 32mm Bung 
SaleHHO o2 Oxygen Sensor Extender Adapter Extension Spacer 32mm Bung
Regular price $17.99 Sale price $13.99HHO o2 Oxygen Sensor Extender Adapter Extension Spacer 32mm Bung
Sale price $13.99 Regular price $17.99 -
2015-2019 Volkswagen Golf GTi 2.0T MK7 Turbo Resonated Downpipe 
Sale2015-2019 Volkswagen Golf GTi 2.0T MK7 Turbo Resonated Downpipe
Regular price $349.99 Sale price $279.992015-2019 Volkswagen Golf GTi 2.0T MK7 Turbo Resonated Downpipe
Sale price $279.99 Regular price $349.99 -
07-10 BMW 335Xi E90 E91 E92 E93 N54B30 AWD X-Drive N54 Twin Turbo Downpipes 
Sold out07-10 BMW 335Xi E90 E91 E92 E93 N54B30 AWD X-Drive N54 Twin Turbo Downpipes
Regular price $299.99 Sale price $239.9907-10 BMW 335Xi E90 E91 E92 E93 N54B30 AWD X-Drive N54 Twin Turbo Downpipes
Sale price $239.99 Regular price $299.99 -
13-26 Subaru BRZ, Scion FRS, Toyota FT86 GT86 GR86 Straight Front Pipe Cat Delete 
Sold out13-26 Subaru BRZ, Scion FRS, Toyota FT86 GT86 GR86 Straight Front Pipe Cat Delete
Regular price $312.99 Sale price $249.9913-26 Subaru BRZ, Scion FRS, Toyota FT86 GT86 GR86 Straight Front Pipe Cat Delete
Sale price $249.99 Regular price $312.99 -
2013-2026 Subaru BRZ Scion FRS FR-S FT86 GT86 GR86 DUAL RESONATED Catless Front Test Pipe 
Sold out2013-2026 Subaru BRZ Scion FRS FR-S FT86 GT86 GR86 DUAL RESONATED Catless Front Test Pipe
Regular price $299.99 Sale price $239.992013-2026 Subaru BRZ Scion FRS FR-S FT86 GT86 GR86 DUAL RESONATED Catless Front Test Pipe
Sale price $239.99 Regular price $299.99 -
1992-2000 Lexus SC300 Thick Walled Catback Dual Exhaust System 
Sold out1992-2000 Lexus SC300 Thick Walled Catback Dual Exhaust System
Regular price $844.99 Sale price $579.991992-2000 Lexus SC300 Thick Walled Catback Dual Exhaust System
Sale price $579.99 Regular price $844.99 -
2007-2010 335i E90 E92 E93 Chassis Brace For Aftermarket Exhaust Catback Systems 
Sale2007-2010 335i E90 E92 E93 Chassis Brace For Aftermarket Exhaust Catback Systems
Regular price $79.99 Sale price $59.992007-2010 335i E90 E92 E93 Chassis Brace For Aftermarket Exhaust Catback Systems
Sale price $59.99 Regular price $79.99 -
2015-2017 Acura TLX V6 FWD Resonated Catback Exhaust System 
Sale2015-2017 Acura TLX V6 FWD Resonated Catback Exhaust System
Regular price $999.99 Sale price $799.992015-2017 Acura TLX V6 FWD Resonated Catback Exhaust System
Sale price $799.99 Regular price $999.99 -
2008-2016 Evolution 10 EVO X 4B11T 2.0L Wide True 4"-3" 2 Piece Downpipe 
Sale2008-2016 Evolution 10 EVO X 4B11T 2.0L Wide True 4"-3" 2 Piece Downpipe
Regular price $349.99 Sale price $299.992008-2016 Evolution 10 EVO X 4B11T 2.0L Wide True 4"-3" 2 Piece Downpipe
Sale price $299.99 Regular price $349.99 -
1993-1998 Toyota Supra / Lexus Sc300 2JZ GE / 2JZ GTE 3" V Band Single Turbo Down Pipe Downpipe 
Sale1993-1998 Toyota Supra / Lexus Sc300 2JZ GE / 2JZ GTE 3" V Band Single Turbo Down Pipe Downpipe
Regular price $249.99 Sale price $199.991993-1998 Toyota Supra / Lexus Sc300 2JZ GE / 2JZ GTE 3" V Band Single Turbo Down Pipe Downpipe
Sale price $199.99 Regular price $249.99 -
1997-1999 Porsche Boxster 2.5L 986 Secondary Resonated Test Pipes 
Sold out1997-1999 Porsche Boxster 2.5L 986 Secondary Resonated Test Pipes
Regular price $243.99 Sale price $194.991997-1999 Porsche Boxster 2.5L 986 Secondary Resonated Test Pipes
Sale price $194.99 Regular price $243.99 -
05-08 Porsche Cayman & Boxster 987.1 Headers High Flow Catted Exhaust Header 200 Cell 
Sold out05-08 Porsche Cayman & Boxster 987.1 Headers High Flow Catted Exhaust Header 200 Cell
Regular price $1,249.99 Sale price $999.9905-08 Porsche Cayman & Boxster 987.1 Headers High Flow Catted Exhaust Header 200 Cell
Sale price $999.99 Regular price $1,249.99 -
2000-2004 Porsche Boxster 986 2.7/3.2L High Flow Catted Test Pipes 
Sale2000-2004 Porsche Boxster 986 2.7/3.2L High Flow Catted Test Pipes
Regular price $449.99 Sale price $399.992000-2004 Porsche Boxster 986 2.7/3.2L High Flow Catted Test Pipes
Sale price $399.99 Regular price $449.99 -
2003-2009 Nissan 350Z Z33 350 Z Single Muffler 4" Exit Y-Back Exhaust System 
Sold out2003-2009 Nissan 350Z Z33 350 Z Single Muffler 4" Exit Y-Back Exhaust System
Regular price $419.99 Sale price $379.992003-2009 Nissan 350Z Z33 350 Z Single Muffler 4" Exit Y-Back Exhaust System
Sale price $379.99 Regular price $419.99 -
98-06 VW JETTA/BEETLE/GOLF 1.9L MK4 TDI ALH 1.9L Cat-Back Exhaust turbo Diesel 
Sold out98-06 VW JETTA/BEETLE/GOLF 1.9L MK4 TDI ALH 1.9L Cat-Back Exhaust turbo Diesel
Regular price $387.99 Sale price $309.9998-06 VW JETTA/BEETLE/GOLF 1.9L MK4 TDI ALH 1.9L Cat-Back Exhaust turbo Diesel
Sale price $309.99 Regular price $387.99 -
2003-2006 Infinity G35 Anti-Reversion Cat Delete Test pipes 
Sold out2003-2006 Infinity G35 Anti-Reversion Cat Delete Test pipes
Regular price $224.99 Sale price $179.992003-2006 Infinity G35 Anti-Reversion Cat Delete Test pipes
Sale price $179.99 Regular price $224.99
