COBB Catback Exhaust Mazda Mazdaspeed3 (2007-2009) 3.5" Slash-Cut Tip or Dual 4" Double-Walled Tips

Fitment Information

• Mazda Mazdaspeed3 (2007, 2008, 2009, 2011, 2012, 2013) 

Specs & Features

• Forever-Lasting Build: Both systems are constructed purely from mandrel-bent 304 Stainless Steel with precision TIG welds to survive road salt and heat without rusting.
• Street-Legal Roar: Engineered to stay within strict SAE J1169 sound restrictions (under 95dB), giving you aggressive tone without the fix-it ticket.
• Gen1 Specifics (07-09): Features a refined single-muffler layout ending in a tasteful 3.5" Slash-Cut Tip that fills the bumper cutout like jewelry.
• Gen2 Specifics (10-13): Utilizes a high-clearance design with a 3" mid-pipe splitting into dual 2.5" runners, capped with massive Dual 4" Double-Walled Tips.
• Zero Restriction: Both designs use straight-through resonators and mufflers to minimize back-pressure, allowing your turbo to spool faster and hold boost longer.

Product Description

The MAZDASPEED3 is a torque monster, but the factory exhaust sounds more like a vacuum cleaner than a hot hatch. The COBB Tuning Cat-Back Exhaust changes the game for both generations. COBB designed these systems to be the "Goldilocks" of the market—flowing enough air to support big turbo upgrades, but keeping the sound mature enough for a daily driver.

COBB don't mess around with cheap aluminized steel. Whether you have a 2007 or a 2013, your kit is crafted from 304 Stainless Steel. The flanges are thick, the hangers are solid, and the piping is mandrel-bent to keep airflow smooth. The TIG welds are so clean it’s almost a shame to hide them underneath the car.

For the first-gen  (2007-2009) owners, COBB kept it classic. This system uses a polished resonator and a straight-through muffler to scrub out that tinny, raspy noise common with MZR engines. It leaves you with a deep, baritone idle. The single 3.5" slash-cut tip isn't a coffee can; it’s a refined, polished accent that fits the bumper perfectly.

The second-gen  (2010-2013) needed a different approach. COBB traced the factory path but optimized it, using a 3" to dual 2.5" split layout. COBB tucked the piping high into the undercarriage, giving you maximum ground clearance—crucial if you’re lowered. To match the bolder styling of the Gen2, COBB finished it with Dual 4" Slash-Cut Tips that actually fill those massive rear valence cutouts properly.

This is the definitive exhaust for the Mazdaspeed platform. It gives you the flow required for big power, the durability to last the life of the car, and a sound that is subtle at cruise but demonic at wide-open throttle. It’s the smart way to get the "Zoom-Zoom" sound without the hassle.