Borla 140121 S-Type Cat-Back Exhaust for 2004-2009 Mazda 3 2.3L FWD

Vehicle Fitment

• 2004-2009 Mazda 3 (Sedan/Hatchback, 2.3L I4, FWD, Manual/Automatic)

Features

• Borla S-Type sound profile for an aggressive yet balanced exhaust tone
• Mandrel-bent 2.5" stainless steel tubing for optimized exhaust flow
• Straight-through muffler design reduces backpressure and enhances performance
• Premium T-304 austenitic stainless steel construction for corrosion resistance
• Polished 4" single round rolled angle-cut exhaust tip improves rear styling
• Direct bolt-on design using factory hanger locations for easy installation
• Designed for durability and consistent performance under varied driving conditions
• Backed by Borla's Million-Mile Warranty

Specifications

• Exhaust Type: Cat-Back system
• Material: T-304 stainless steel
• Main Pipe Diameter: 2.5 in
• Tip Diameter: 4.0 in
• Tip Style: Polished round rolled angle-cut
• Exit Location: Single left rear exit
• Drivetrain Compatibility: Front-Wheel Drive (FWD)
• Transmission Compatibility: Manual and Automatic

Included Components

• 1x Front pipe assembly
• 1x Intermediate pipe assembly
• 1x Muffler assembly
• 1x Polished round rolled angle-cut exhaust tip
• Required clamps and mounting hardware

Product Description

The Borla 140121 S-Type Cat-Back Exhaust System is engineered specifically for 2004-2009 Mazda 3 vehicles equipped with the 2.3L inline-4 engine and front-wheel-drive drivetrain. This premium performance exhaust replaces the stock system with high-quality T-304 stainless steel mandrel-bent tubing and a straight-through muffler design to improve exhaust flow, throttle response, and overall engine performance while delivering Borla's signature aggressive yet balanced S-Type exhaust tone.

Constructed from durable stainless steel and featuring a single polished 4-inch round rolled angle-cut tip with a single left rear exit, the 140121 enhances both sound and rear styling while maintaining a direct bolt-on fit using factory hanger locations. Designed for enthusiasts who want improved airflow and a more engaging driving experience, this exhaust system also offers long-lasting corrosion resistance and performance backed by Borla's Million-Mile Warranty.