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2004-2006 GTO Parts & Accessories - Exhaust & Headers

Corsa Sport Cat-Back Exhaust System w/ Oval Tip - 2004 Pontiac GTO

Owners of the 2004 GTO can now attain that muscle car era sound while enhancing the performance of their "Goat" with an exhaust system from CORSA.

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Magnaflow Stainless Steel Exhaust w/ Tru X Crossover 2004 GTO

This Magnaflow performance exhaust for the LS1 powered 2004 Pontiac GTO is the perfect addition to take your Goat to the next level and add a muscle car rumble.

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Magnaflow Stainless Steel Exhaust w/ Tru X Crossover 2005-06 GTO

This Magnaflow performance exhaust for the LS2 powered 2005-06 Pontiac GTO is the perfect addition to take your Goat to the next level and add a muscle car rumble.

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SLP Loudmouth I Exhaust System - 2004 Pontiac GTO

Looking for the ultimate GTO cat-back system? SLP's new GTO Loud Mouth employs an integral X-pipe crossover and specially designed "Shotgun" race resonators to provide superior flow and performance, while minimizing interior drone.

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SLP Loudmouth I Exhaust System - 2005-2006 Pontiac GTO

Bolt on a Loud Mouth modular catalyst-back exhaust system from SLP on your new 2005 GTO for up to 5 extra horsepower and 5 foot-pounds of torque with the aggressive musclecar rumble your LS2 deserves.

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SLP Loudmouth II Exhaust System - 2004 Pontiac GTO

SLP's new GTO Loudmouth II exhaust system employs an integral X-pipe crossover and dual low-restriction mufflers to provide superior flow and performance, while minimizing interior resonance.

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SLP Loudmouth II Exhaust System - 2005-06 Pontiac GTO

Bolt on a Loud Mouth II modular catalyst-back exhaust system from SLP on your new 2005 GTO for up to 5 extra horsepower and 5 foot-pounds of torque with the aggressive musclecar rumble your LS2 deserves.

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Kooks "Signature Series" Stepped Headers 1 3/4" x 1 7/8" x 3" - 2004-2006 Pontiac GTO

We are pleased to announce these new "Kooks Signature Series" 1 3/4" to 1 7/8" stepped headers for the 2004-2006 Pontiac GTO.

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Kooks Long Tube Headers 1 7/8"x 3" - 2004 LS1 GTO

These 304 stainless steel long tube headers are for the 2004 Pontiac GTO. Kooks builds all of their products to the highest standard, and these are possibly the best headers you can buy for your GTO.

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Kooks Long Tube Headers 1 7/8"x 3" - 2005-2006 LS2 GTO

These 304 stainless steel long tube headers are for the 2005-2006 Pontiac GTO. Kooks builds all of their products to the highest standard, and these are possibly the best headers you can buy for your GTO.

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Kooks 3" Mid Pipes w/Catalytic Converters - 2004 Pontiac GTO

These Mid Pipes are for connecting your new Kooks Headers to your Pontiac GTO. These 3" diameter pipes feature Metallic Catalytic Converters to keep your emissions system functioning with your new Headers.

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Kooks 3" Mid Pipes w/Catalytic Converters - 2005-06 Pontiac GTO

These Mid Pipes are for connecting your new Kooks Headers to your Pontiac GTO. These 3" diameter pipes feature Metallic Catalytic Converters to keep your emissions system functioning with your new Headers.

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Kooks 3" Off Road Mid Pipes - 2004 Pontiac GTO

These Mid Pipes are for connecting your new Kooks Headers to your Pontiac GTO. These 3" diameter pipes do not have Metallic Catalytic Converters and are intended for off road use only.

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Kooks 3" Off Road Mid Pipes - 2005-06 Pontiac GTO

These Mid Pipes are for connecting your new Kooks Headers to your Pontiac GTO. These 3" diameter pipes do not have Metallic Catalytic Converters and are intended for off road use only.

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Pacesetter 1 3/4" x 3" Headers - 2004-06 Pontiac GTO - Coated

CNC-machined 3/8"-thick steel flanges are matched to exhaust port profile for optimum seal and flow.

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ARH LongTube 1-7/8 304-SS Headers w/ Connection Pipes and Catalytic Converters - GTO 2004-06

New from American Racing Headers are these stainless steel full-length exhaust headers. Made from 304 stainless steel with D Port matched flanges and 1-7/8" diameter primary tubes.

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