XForce Cat Back Exhaust w/ Angle Out Cannon 2002-2007 WRX / STI | 3" Mandrel-Bent Stainless Steel | Performance Exhaust System

Overview

The XForce Cat Back Exhaust system with an angle out cannon muffler is designed specifically for the 2002-2007 Subaru WRX and WRX STI manual transmission models. This cat-back upgrade replaces the factory exhaust from the catalytic converter back, enhancing exhaust flow and delivering a deeper, more aggressive exhaust note that Subaru enthusiasts crave. It’s an ideal choice for drivers looking to improve both the sound and performance of their WRX or STI without compromising daily drivability.

Engineered with precision mandrel-bent 3-inch piping and constructed from raw 409 stainless steel, the XForce system prioritizes durability and optimal exhaust gas flow. The inclusion of a center hotdog resonator helps balance sound levels, while the distinctive angle out cannon muffler with a 4.5-inch tip provides a unique visual and acoustic signature. XForce’s focus on fitment and quality ensures a straightforward bolt-on installation that maintains factory mounting points and alignment.

For Subaru owners, this exhaust system offers tangible benefits beyond just sound. The improved exhaust flow can contribute to modest horsepower gains when paired with supporting modifications and proper tuning. The aggressive tone enhances the driving experience, making your WRX or STI stand out on the street while retaining the reliability and fitment expected from a Subaru-specific upgrade.

Features & Specifications

This XForce Cat Back Exhaust system is engineered for 2002-2007 Subaru WRX and WRX STI manual models and features 3-inch mandrel-bent piping for improved flow. Constructed from durable raw 409 stainless steel, it delivers enhanced exhaust sound and performance for Subaru enthusiasts seeking a bolt-on upgrade with aggressive tone and reliable fitment.

• Brand: XForce
• Product: Cat Back Exhaust w/ Angle Out Cannon
• Part Number: E4-SW05-LPA-CBS
• Fitment: 2002-2007 Subaru WRX / STI (Manual Transmission Only)
• Material: Raw 409 Stainless Steel
• Finish: Raw Stainless Steel
• Construction: Mandrel-Bent Piping, Welded
• Origin: Not Specified
• Pipe Diameter: 3 inches
• Muffler Type: Angle Out Cannon with 4.5" Tip
• Resonator: Center Hotdog Resonator Included
• Installation: Bolt-On Design
• Additional Parts Required: E4-SW05-C1 Connecting Pipe for Some Models with Standalone Cat Converter

Key Benefits

• Performance: Mandrel-bent 3" piping improves exhaust flow for potential horsepower gains when combined with tuning.
• Sound: Aggressive and deep WRX/STI exhaust tone enhances the driving experience without excessive drone.
• Fitment: Precision-engineered for a direct bolt-on installation on 2002-2007 WRX/STI manual models, ensuring perfect alignment and factory mounting.
• Durability: Raw 409 stainless steel construction offers corrosion resistance and long-lasting performance.
• Aesthetics: Unique angle out cannon muffler with a large 4.5" tip adds a distinctive visual upgrade to the rear of your Subaru.
• Compatibility: Designed specifically for manual transmission WRX and STI models, maintaining OEM quality standards.

What's Included

• 1× XForce Cat Back Exhaust w/ Angle Out Cannon Muffler
• Center Hotdog Resonator
• Installation Hardware
• Installation Instructions

Installation & Compatibility

The XForce Cat Back Exhaust system is designed for a straightforward bolt-on installation using existing factory mounting points, making it accessible for enthusiasts with basic mechanical skills. No special tools beyond standard hand tools are typically required. However, some WRX/STI models equipped with standalone catalytic converters may require the purchase of the E4-SW05-C1 connecting pipe to complete the installation properly. Professional installation is recommended if you are unfamiliar with exhaust work or welding.

• Professional Installation: Recommended for best results
• Modifications Required: None for most models; connecting pipe needed for some standalone cat converter setups
• Verify Compatibility: Confirm fitment for your specific 2002-2007 WRX or STI manual transmission model before purchase

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