2005-06 Pontiac GTO | T-304 Straight-Through Cat-Back Exhaust w/ 4" Tips
2005-06 Pontiac GTO | T-304 Straight-Through Cat-Back Exhaust w/ 4" Tips
Extreme Online Store
Couldn't load pickup availability
- ✔ Verified fitment & authentic brands
- ✔ Secure checkout via Shopify, Stripe, and PayPal
- ✔ Enthusiast-run support — not a marketplace
- ✔ Fair resolution on damaged or incorrect orders
Every product is sourced from authorized manufacturers or distributors. If something isn’t right with fitment or condition, we’ll work with you to resolve it fairly.
NO GUESSWORK,
JUST PARTS THAT WORK.
Let’s finish that car.
PRODUCT DETAILS
Product Overview
Upgrade your 2005–2006 Pontiac GTO 6.0L with this premium Straight-Through T304 Stainless Steel Cat-Back Exhaust System — engineered for maximum flow, performance, and an aggressive muscle-car tone. Designed as a direct bolt-on replacement for the factory system, this exhaust delivers improved horsepower, sharper throttle response, and a deep exhaust note that complements the legendary LS2 V8 engine.
Constructed from high-grade T-304 stainless steel, this system provides long-lasting durability and corrosion resistance even under extreme driving conditions. The anodized silver finish not only enhances appearance but also resists heat discoloration over time. Each kit includes dual 4-inch double-wall slant-cut exhaust tips that fill the rear valance perfectly, giving your GTO a clean yet aggressive stance.
Ideal for daily driving, spirited highway cruising, or track-day performance, this cat-back exhaust unlocks the signature rumble the Pontiac GTO is known for. Designed to fit all 2005–2006 Pontiac GTO 6.0L models, this system blends OEM fitment precision with aftermarket performance gains.
Key Features
-
Direct Bolt-On Performance: Designed specifically for 2005–2006 Pontiac GTO models equipped with the 6.0L LS2 V8 engine. No cutting or welding required — simply unbolt your factory system and replace.
-
T-304 Stainless Steel Construction: Built from premium aircraft-grade stainless steel to resist rust, oxidation, and high-temperature fatigue for long-term reliability.
-
Straight-Through Cat-Back Design: Increases exhaust flow for improved horsepower, torque, and throttle response while maintaining an aggressive yet refined exhaust tone.
-
Dual 4-Inch Slant-Cut Tips: Polished, double-wall tips deliver a bold appearance and premium finish, maintaining their shine even after extended use.
-
Heat-Resistant Anodized Finish: Provides a sleek silver appearance while protecting against heat discoloration and surface corrosion.
-
Precision Fitment & Hardware Included: Engineered to factory mounting points for perfect alignment and easy installation. Comes complete with all necessary clamps and hardware for a secure fit.
-
Enhanced Sound & Style: Produces a deep, throaty tone without excessive cabin drone — perfect for enthusiasts seeking a true muscle-car sound.
Installation
This Pontiac GTO Cat-Back Exhaust System offers a 100% direct bolt-on installation using factory hanger locations.
-
No cutting, welding, or drilling required.
-
Basic hand tools and a lift or jack stands are recommended.
-
Professional installation is highly recommended for optimal fitment and sealing.
Installation manual is not included.
Vehicle Compatibility
FITMENT For ALL 2005-2006 Pontiac GTO 6.0L Models
| Year | Make | Model | Trim | Engine | Notes |
|---|---|---|---|---|---|
| 2006 | Pontiac | GTO | Base Coupe 2-Door | 6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally Aspirated | |
| 2005 | Pontiac | GTO | Base Coupe 2-Door | 6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally Aspirated |
WHY WE CARRY THIS
We only list parts we’d run ourselves or recommend to a friend building a real car. If it feels vague, unverified, or inconsistent, it doesn’t make the cut.
- Fitment-first mindset — no “universal” roulette
- Brand reputation matters — we favor proven manufacturing
- Support that actually responds with real answers
WHAT TO EXPECT
This is the clean path: correct fitment, clean install, and results that match the intent.
- Install-ready experience with correct mounting where provided
- Finish that holds up to real driving, not just photos
- Selections on this page drive the exact fitment shipped
TRUST, BUILT INTO THE PROCESS.
Anyone can list parts. We curate what belongs on a serious build. Our goal is simple: fewer surprises, cleaner installs, and confidence when you hit “Buy.”
Fitment checked
We prioritize vehicle-specific listings and clear selection logic so you’re not gambling on compatibility.
Brand discipline
Proven manufacturing and consistent quality matter more than hype. We bias toward what actually holds up.
Real support
If you have a question, you’ll get a human answer that helps you finish the build — not a copy-paste shrug.
Product Overview
Upgrade your 2005–2006 Pontiac GTO 6.0L with this premium Straight-Through T304 Stainless Steel Cat-Back Exhaust System — engineered for maximum flow, performance, and an aggressive muscle-car tone. Designed as a direct bolt-on replacement for the factory system, this exhaust delivers improved horsepower, sharper throttle response, and a deep exhaust note that complements the legendary LS2 V8 engine.
Constructed from high-grade T-304 stainless steel, this system provides long-lasting durability and corrosion resistance even under extreme driving conditions. The anodized silver finish not only enhances appearance but also resists heat discoloration over time. Each kit includes dual 4-inch double-wall slant-cut exhaust tips that fill the rear valance perfectly, giving your GTO a clean yet aggressive stance.
Ideal for daily driving, spirited highway cruising, or track-day performance, this cat-back exhaust unlocks the signature rumble the Pontiac GTO is known for. Designed to fit all 2005–2006 Pontiac GTO 6.0L models, this system blends OEM fitment precision with aftermarket performance gains.
Key Features
-
Direct Bolt-On Performance: Designed specifically for 2005–2006 Pontiac GTO models equipped with the 6.0L LS2 V8 engine. No cutting or welding required — simply unbolt your factory system and replace.
-
T-304 Stainless Steel Construction: Built from premium aircraft-grade stainless steel to resist rust, oxidation, and high-temperature fatigue for long-term reliability.
-
Straight-Through Cat-Back Design: Increases exhaust flow for improved horsepower, torque, and throttle response while maintaining an aggressive yet refined exhaust tone.
-
Dual 4-Inch Slant-Cut Tips: Polished, double-wall tips deliver a bold appearance and premium finish, maintaining their shine even after extended use.
-
Heat-Resistant Anodized Finish: Provides a sleek silver appearance while protecting against heat discoloration and surface corrosion.
-
Precision Fitment & Hardware Included: Engineered to factory mounting points for perfect alignment and easy installation. Comes complete with all necessary clamps and hardware for a secure fit.
-
Enhanced Sound & Style: Produces a deep, throaty tone without excessive cabin drone — perfect for enthusiasts seeking a true muscle-car sound.
Installation
This Pontiac GTO Cat-Back Exhaust System offers a 100% direct bolt-on installation using factory hanger locations.
-
No cutting, welding, or drilling required.
-
Basic hand tools and a lift or jack stands are recommended.
-
Professional installation is highly recommended for optimal fitment and sealing.
Installation manual is not included.
Vehicle Compatibility
FITMENT For ALL 2005-2006 Pontiac GTO 6.0L Models
| Year | Make | Model | Trim | Engine | Notes |
|---|---|---|---|---|---|
| 2006 | Pontiac | GTO | Base Coupe 2-Door | 6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally Aspirated | |
| 2005 | Pontiac | GTO | Base Coupe 2-Door | 6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally Aspirated |
