2004-2007 Subaru STI Exhausts

Torque Solution Thermal Downpipe Blankets are highly effective at protecting components around your downpipe by blocking the heat produced by the h...

Overtake Adjustable Exhaust Hangers | Less Slop & More Adjustability Tired of your fancy catback flopping around on the factory exhaust hangers...

DESCRIPTION Replace your missing or damaged up-pipe hardware with the same high-quality kit included in all GrimmSpeed Up-Pipes. Designed for durab...

DESCRIPTION The COBB Catback exhaust for the WRX & STI does not deviate from the factory emissions equipment and conforms to the SAE dic...

The COBB Titanium Cat-Back Exhaust is un-matched in build quality, style, and performance. Utilizing Grade 4 titanium tubing, this cat-back offers ...

Emissions 50 State Legal. This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the ...

EMISSIONS This part is not an emissions-related part and therefore can be used on Emission Controlled Vehicles. DESCRIPTION COBB Exhaust ga...

EMISSIONS This part is not an emissions-related part and therefore can be used on Emission Controlled Vehicles. DESCRIPTION COBB Exhaust ga...

DESCRIPTION GrimmSpeed believes that there has not been any major changes to the unequal exhaust manifold in some time, and this is due to the tigh...

DESCRIPTION The Grimmspeed OEM Downpipe To 3-Inch Cat-Back Adapter is very popular for those of you who are retaining the stock downpipe and need t...

DESCRIPTION Tired of the endless searching for a 3" 2 Bolt premium gasket that doesn't blow out? Most aftermarket Subaru exhaust systems need a 3" ...

DESCRIPTION The GrimmSpeed Turbo To Downpipe Gasket is made using a premium multi-layer steel with a stainless steel fire-ring, this gasket surpass...

DESCRIPTION Tired of the endless searching for a 3" 2 Bolt premium gasket that doesn't blow out? Most aftermarket Subaru exhaust systems need a 3" ...

DESCRIPTION This is the GrimmSpeed Downpipe Donut Gasket. This gasket is available as a direct replacement for your leaking OEM donut gasket and fe...

EMISSIONS SEMA Certified - SC -GRM01-0145 for listed fitments CARB Certified - EO - #D-896 for listed fitments DESCRIPTION The GrimmSpeed Ceramic ...

EMISSIONS SEMA Certified - SC -GRM01-0145 for listed fitments CARB Certified - EO - #D-896 for listed fitments DESCRIPTION We designed this up pip...

PLM Power Driven Subaru 44mm EWG Up-Pipe with Dump Tube features a unique designed Up-pipe which gives you the option to install a 44mm or 45mm ext...

PLM Private Label Mfg. Power Driven Subaru EWG Up-Pipe with Dump Tube 38mm features a unique designed up pipe which gives you the option to install...

The wait is over! Extreme Turbo Systems is proud to release our new Subaru STI V2 MaxFlow Exhaust Header for the 2004+ Subaru STI. We designed our ...