Circuit Werks

685 products ★ 4.4

Since 1999, we've been driving excellence in the Automotive Performance Industry. Backed by decades of experience, we deliver only the highest quality performance parts.

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2003-2009 Nissan 350Z Z33 350 Z Single Muffler 4" Exit Y-Back Exhaust System

2003-2009 Nissan 350Z Z33 350 Z Single Muffler 4" Exit Y-Bac

USD 379.99
06-14 Volkswagen Golf MK6 MKVI GTi CBFA 2.0T Catless Exhaust Resonated Turbo Downpipe VI

06-14 Volkswagen Golf MK6 MKVI GTi CBFA 2.0T Catless Exhaust

USD 349.99
06-14 Volkswagen Golf MK6 MKVI GTi CBFA 2.0T Exhaust Straight Turbo Downpipe VI

06-14 Volkswagen Golf MK6 MKVI GTi CBFA 2.0T Exhaust Straigh

USD 274.99
06-14 Golf GTi MK6 MKVI 2.0T Exhaust Volkswagen Turbo DeCat Downpipe 2.0L MK 6 (CCTA)

06-14 Golf GTi MK6 MKVI 2.0T Exhaust Volkswagen Turbo DeCat

USD 159.99
2008-2016 Evolution 10 EVO X 4B11T 2.0L Wide True 4"-3" 2 Piece Downpipe

2008-2016 Evolution 10 EVO X 4B11T 2.0L Wide True 4"-3" 2 Pi

USD 299.99
Civic Acura Integra Header B-SERIES 2.5 Collector Stainless Exhaust Manifold 4-1

Civic Acura Integra Header B-SERIES 2.5 Collector Stainless

USD 199.99
2008-2013 Infiniti G37 Q60 Circuit Werks Anti Reversion Test Pipes VQ37HR

2008-2013 Infiniti G37 Q60 Circuit Werks Anti Reversion Test

USD 229.99
08-14 Lexus ISF Titanium Slip On Tips Angle Cut Exhaust Tip IS-F

08-14 Lexus ISF Titanium Slip On Tips Angle Cut Exhaust Tip

USD 399.99
00-04 Porsche Boxster 986 2.7/3.2 Straight Test Pipes

00-04 Porsche Boxster 986 2.7/3.2 Straight Test Pipes

USD 219.99
00-04 Porsche Boxster 986 2.7/3.2 Circuit Werks Resonated Test Pipes Frontpipes Midpipes

00-04 Porsche Boxster 986 2.7/3.2 Circuit Werks Resonated Te

USD 249.99
97-04 Porsche Boxster 986 Models Circuit Werks Catback Exhaust System

97-04 Porsche Boxster 986 Models Circuit Werks Catback Exhau

USD 309.99
03-20 Nissan 350Z 370Z Fairlady Resonated Y Pipe Exhaust

03-20 Nissan 350Z 370Z Fairlady Resonated Y Pipe Exhaust

USD 499.99
97-04 Porsche Boxster 986 Base S Models Catback Exhaust

97-04 Porsche Boxster 986 Base S Models Catback Exhaust

USD 399.99
97-04 Porsche Boxster 986 Catback Exhaust System Base & S Burnt Tips

97-04 Porsche Boxster 986 Catback Exhaust System Base & S Bu

USD 449.99
89-93 Mazda Miata B6ZE MX5 1.6 Polished Catback Exhaust System

89-93 Mazda Miata B6ZE MX5 1.6 Polished Catback Exhaust Syst

USD 349.99
97-04 Porsche Boxster 986 V2 Catback Exhaust System w/ C Pipes, Burnt Tips

97-04 Porsche Boxster 986 V2 Catback Exhaust System w/ C Pip

USD 699.99
2000-2004 Porsche Boxster 986 2.7/3.2L High Flow Catted Test Pipes

2000-2004 Porsche Boxster 986 2.7/3.2L High Flow Catted Test

USD 359.99
09-18 Alfa Mito 1.4L Turbo Straight Downpipe

09-18 Alfa Mito 1.4L Turbo Straight Downpipe

USD 239.99
13-16 Dodge Dart Straight Downpipe Down Pipe 1.4L Stainless

13-16 Dodge Dart Straight Downpipe Down Pipe 1.4L Stainless

USD 229.99
12-19 Fiat Abarth 500 1.4L Turbo Resonated Downpipe

12-19 Fiat Abarth 500 1.4L Turbo Resonated Downpipe

USD 259.99
2013-2016 Dodge Dart 1.4L Turbo Resonated Downpipe

2013-2016 Dodge Dart 1.4L Turbo Resonated Downpipe

USD 259.99
92-00 Honda Civic 94-01 Acura Integra K20/K24 K Swap EG EK DC2 K-Series Tri-Y Header

92-00 Honda Civic 94-01 Acura Integra K20/K24 K Swap EG EK D

USD 299.99
92-00 Honda Civic 94-01 Acura Integra K20/K24 K Swap EG EK DC2 K-Series V2 Tri-Y Header

92-00 Honda Civic 94-01 Acura Integra K20/K24 K Swap EG EK D

USD 299.99
05-08 Porsche Boxster Cayman 987.1 Catback Exhaust

05-08 Porsche Boxster Cayman 987.1 Catback Exhaust

USD 449.99