Pontiac GTO T-304 Stainless Steel Straight-Through Cat-Back Exhaust System 4 Inch Tips 2005-2006

Upgrade the performance and sound of your 2005-2006 Pontiac GTO with this T-304 stainless steel straight-through cat-back exhaust system. Designed to enhance exhaust flow and deliver a deep, aggressive tone, this system provides a performance-focused upgrade while maintaining precise OEM-style fitment.

Engineered specifically for GTO models equipped with the 6.0L LS2 engine, this exhaust system replaces the factory unit using original mounting points. The straight-through design improves airflow efficiency, resulting in better throttle response and overall performance while producing a refined muscle car exhaust note.

Constructed from premium T-304 stainless steel, this system offers exceptional durability, corrosion resistance, and long-term reliability. The dual 4-inch double-wall slant-cut tips provide a bold rear appearance, completing the aggressive styling of your GTO.

Product Specifications

Key Features

• Designed for 2005-2006 Pontiac GTO models
• Compatible with 6.0L LS2 V8 engine
• Straight-through cat-back exhaust design for improved airflow
• Enhances horsepower, torque, and throttle response
• T-304 stainless steel construction for durability and corrosion resistance
• Produces a deep, aggressive muscle-car exhaust tone
• Dual 4-inch double-wall slant-cut exhaust tips
• Polished tips provide a bold and premium rear appearance
• Heat-resistant finish helps prevent discoloration
• Precision-engineered for OEM-level fitment
• Includes clamps and hardware for installation
• No cutting, welding, or modification required

Configuration Options

• Polished Tip Finish – Clean, high-gloss exhaust tip appearance

Package Includes

• Cat-back exhaust system piping
• Dual exhaust tips
• Mounting clamps and hardware

Note: Designed for LS2-equipped models only. Professional installation is recommended to ensure proper fitment and sealing.

Installation

• Direct bolt-on installation
• Uses factory hanger locations
• No cutting required
• No welding required
• No drilling required
• Basic tools required
• Professional installation recommended

Fitment

• 2005 Pontiac GTO 6.0L Coupe
• 2006 Pontiac GTO 6.0L Coupe
• Fits LS2 engine models only

United States: Free shipping available to the lower 48 states across all items. Other states will incur a shipping charge.

Worldwide: Free shipping is available for Complete Headlights, Taillights, DRLs. For custom headlight retrofits, carbon fiber products, and performance products, there will be a shipping charge.  

Please note:
• For Retrofits, you are purchasing a headlight modification service.
• If you select "Shipping own headlights to BayOptiks for modification", you are required to send us your headlights.
• If you choose "Purchase new OEM headlights", we will order and modify a new OEM headlight for you.
• Once your customizations are complete, we will ship it to you!

• Complete Headlights: 3-5 business days for order processing plus shipping time.
• Custom & Pre-Built Headlights: 6-8 weeks depending on the complexity and component availability.
• New OEM and cores: 6-8 weeks plus an additional 4-8 weeks as these are special orders base on the vehicle VIN due to different versions (North American, European, etc.)
• DRLs, Taillights, Brake Pads, and Carbon Fiber Aero: 3-5 business days for order processing, plus shipping time.
• Lens Replacements: 1-3 weeks plus shipping time.

Please note, we do not have control over the time frames of our vendors, manufacturers, and delivery services as they may delay processes in regards to components and shipment.