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Apexi GT Spec Exhaust: Subaru Impreza STi 2004+
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Apexi GT Spec Exhaust: Subaru Impreza STi 2004+

The GT Spec Muffler is the ultimate in high power exhaust systems. Previously available only for select GT class vehicles, we are now proud to offer the GT Muffler for a wide variety of popular vehicles. The GT System is a FULLY polished stainless steel exhaust uti...



Our Price: $636.65
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Apexi N1 3" Catback Exhaust: STi 04-07
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Apexi N1 3" Catback Exhaust: STi 04-07

Apexi exhaust N-1 features the angled muffler, Apexi exhaust was the first to produce this type of muffler style on a manufacturing basis in Japan.

Apexi N-1 exhaust pipes aim for the straightest possible line with the least number of pipe bends. This allows exhaust gases to pass ...


Retail price: $699.99
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Apexi N1 Ex Ti Exhaust: Subaru Impreza STi 2004+
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Apexi N1 Ex Ti Exhaust: Subaru Impreza STi 2004+

The N1 Muffler series has evolved once again! The N1 ExTi (Expert Titanium) offers all the performance and quality of our race proven N1 Exhaust systems plus the incorporation of an ultra light weight titanium muffler section. For years, the N1 Titan has only been ...



Our Price: $926.50
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Apexi Noir Exhaust: Subaru Impreza STi
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Apexi Noir Exhaust: Subaru Impreza STi

The NOIR (nwär) muffler was developed specifically with the diehard street car enthusiast in mind. Over the years it has became increasingly difficult to street drive a modified “sport compact” in some parts of the country. Staying low profile is a...



Our Price: $526.15
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Apexi WS Exhaust: Subaru Impreza STi
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Apexi WS Exhaust: Subaru Impreza STi

The WS Exhaust series is the A'PEX answer to the ultimate street muffler system with all around performance. The canister is made of the highest grade polished SUS304 stainless steel while the mandrel bent piping consists of high temperature, titanium particle coat...



Our Price: $483.65
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Borla Exhaust Manifold: STi 04-07
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Borla Exhaust Manifold: STi 04-07

Increased exhaust velocity adds power, driving excitement, fuel economy and the distinctive BORLA Sound of Power respected by motoring enthusiasts everywhere.

Best of all, BORLA stands behind every system with a Million-Mile Warranty.



Our Price: $617.95
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Borla Hush Catback Exhaust: STi 04-07
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Borla Hush Catback Exhaust: STi 04-07

Increased exhaust velocity adds power, driving excitement, fuel economy and the distinctive BORLA Sound of Power respected by motoring enthusiasts everywhere.

Each system is built from premium austenitic stainless steel, superior to T-400 series knockoffs, to give you the absolute...


Our Price: $637.95
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Cobb 3" Cat Back Exhaust System: Subaru Impreza STi 04-07
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Cobb 3" Cat Back Exhaust System: Subaru Impreza STi 04-07

Cobb's new system is constructed entirely of high-quality T304 Stainless Steel, from the hangers to the flanges. The COBB WRX Cat Back Exhaust system replaces everything after the stock catalytic converter with smooth, 3" mandrel bent piping. The system is tastefully finished out ...



Our Price: $675.00
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Cobb 3" Race Downpipe Catless: Subaru Impreza STi 04-07 *Discontinued*
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Cobb 3" Race Downpipe Catless: Subaru Impreza STi 04-07 *Discontinued*

Significantly reduce turbo lag with Cobb's truly engineered downpipe. Designed for optimal performance and durability, the downpipe features full 304 Stainless Steel construction. Starting from the turbo, exhaust gasses enter the cast stainless steel bellmouth housing that utilizes int...



Our Price: $495.00
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Cobb 3"Street Downpipe Catted: Subaru Impreza STi 04-07
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Cobb 3"Street Downpipe Catted: Subaru Impreza STi 04-07

Significantly reduce turbo lag with Cobb's truly engineered downpipe. Designed for optimal performance and durability, the downpipe features full 304 Stainless Steel construction. Starting from the turbo, exhaust gasses enter the cast stainless steel bellmouth housing that utilizes int...



Our Price: $595.00
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Cobb Race Turboback Exhaust: Subaru STi 04-07
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Cobb Race Turboback Exhaust: Subaru STi 04-07

The Cobb turboback was designed to be everything your were looking for in an exhaust system -- a complete, truly engineered system, the least amount of turbo lag, optimal performance, tasteful looks, and unparalleled durability without a loud and obnoxious exhaust note. The end result ...



Our Price: $1125.00
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Cobb Street Turboback Exhaust: Subaru STi 04-07
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Cobb Street Turboback Exhaust: Subaru STi 04-07

The Cobb turboback was designed to be everything your were looking for in an exhaust system -- a complete, truly engineered system, the least amount of turbo lag, optimal performance, tasteful looks, and unparalleled durability without a loud and obnoxious exhaust note. The end resul...



Our Price: $1225.00
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Greddy SP2 Exhaust System: Subaru STi 04-07
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Greddy SP2 Exhaust System: Subaru STi 04-07

The ultimate in show quality shine, superior flow and excellent sound quality. The full stainless steel SP2 has the same classic tuned straight-though design as the other GReddy exhaust, with the add benefit of a high polished single walled SUS 304 oval muffler with SUS 430 end caps and a...


Our Price: $649.95
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GReddy Ti-C Catback Exhaust: STi 04-07
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GReddy Ti-C Catback Exhaust: STi 04-07

GReddy Racing Ti-C Cat-back Exhausts combine the design, looks and flow of the GReddy Full Racing Titanium systems with the durability, deep sound and value.

This exhaust system will improve high and mid-range performance. This exhaust  is made completely in Japan.



Our Price: $597.95
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HKS Carbon-Ti Exhaust: Subaru STi 04-07
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HKS Carbon-Ti Exhaust: Subaru STi 04-07

HKS has incorporated this new race inspired offset muffler and piping design, which offers a greater flow and higher-RPM power gains due to the less restrictive design. 

This is achieved by eliminating unnecessary bends for the straightest exhaust path, the large an...



Our Price: $769.70
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HKS Downpipe: STi 04-07
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HKS Downpipe: STi 04-07

The addition of a downpipe yields significant horsepower gains.

The piping is 2.75" Stainless Steel, and includes gaskets & bolts.

Fits: Subaru WRX STi 2002-2007


Our Price: $167.95
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HKS Hi-power Cat-back Exhaust: STi 04-07
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HKS Hi-power Cat-back Exhaust: STi 04-07

HKS cat-back exhaust system is developed to improve your torque and horsepower.

Full 3 inch cat-back with a great deep throaty sound.

Adds HP and increased throttle response.

Sound: Low deep growling sound. Pro...


Our Price: $487.95
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Invidia Down Pipe (Divorced Waste Gate) Subaru STi 04-07
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Invidia Down Pipe (Divorced Waste Gate) Subaru STi 04-07

For a strong boost in power, the Invidia Down Pipe offers an alternative to other power-boosting enhancements. To see just how much power the Invidia Down PIpe can produce, a quick look at its dyno chart shows it easily added several horse-power units to the stock exhaust system. 

...


Our Price: $319.99
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Invidia Down-Pipe (no-polished) Subaru STi 04-07
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Invidia Down-Pipe (no-polished) Subaru STi 04-07

For a strong boost in power, the Invidia Down Pipe offers an alternative to other power-boosting enhancements. To see just how much power the Invidia Down Pipe can produce, a quick look at its dyno chart shows it easily added several horse-power units to the stock exhaust system. 

...


Our Price: $271.99
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Invidia G200 Cat-back: Subaru STi 04-07
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Invidia G200 Cat-back: Subaru STi 04-07

If performance is what you are seeking, the Invidia G200 Exhaust delivers. Each G200 Exhaust features a super-strength titanium tip with an expanded tip size to maximize exhaust air flow. On top of performance, the colored titanium tip gives the G200 Exhaust an aggressive look. The G200 Exh...



Our Price: $703.99
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Invidia N1 Cat-back: Subaru STi 04-07
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Invidia N1 Cat-back: Subaru STi 04-07

For a good balance of price and performance, Invidia offers the motorsport enthusiast a strong line-up of Invidia N1 Exhausts. 


Each Invidia N1 Exhaust is constructed with high-quality SUS304 Stainless Steel, CNC-Machined Flanges and manufactured with a polish finish.&n...



Our Price: $639.99
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Megan Racing 3" Catback Exhaust: STi 04-07
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Megan Racing 3" Catback Exhaust: STi 04-07

Improve horse power and performance with its straight-through design.

All Turbo Types have a 3" inlet and a tip that is specially designed to reach the maximum performance, and have a perfect match on body styling.

As a direct bolt on, each Cat-Back comes with 12 m...


Retail price: $450.99
Our Price: $388.95 save 14%
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Megan Racing 3" Downpipe: STi 04-07
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Megan Racing 3" Downpipe: STi 04-07

The missing component between any Header/Manifold and your Cat-Back system, these Downpipes will give you the high-flow exhaust system that you desire.

With a noticeable power gain and polished finish, these are a perfect touch for any performance vehicle. (Note: For off-road use ...


Retail price: $195.99
Our Price: $157.95 save 19%
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Megan Racing Exhaust Manifold: STi 04-07
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Megan Racing Exhaust Manifold: STi 04-07

This manifold is made by 100% stainless steel. Just like other Megan Racing stainless steel products, this manifold is built with the best welding technology, CNC machine for smoother air flow.

- Special design, ONE pipe manifold in...



Retail price: $319.99
Our Price: $277.95 save 13%
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