Fabspeed Secondary Cat Bypass X-Pipe for Aston Martin DB9 (2004–2016)

This Fabspeed X-pipe replaces the Aston Martin DB9's secondary catalytic converters. The merged stainless section gives the V12 a more exposed exhaust note while removing the original catalyst elements in that location. Based in Fort Washington, Pennsylvania, Fabspeed Motorsport engineers sports-car exhaust, intake and ECU tuning products, including Porsche applications, with development on the dyno, road and racetrack.

Technical Details

• Fabspeed product reference: FS.ASM.DB9.CBXP.
• Secondary catalytic-converter replacement section.
• 14–16 gauge CNC mandrel-bent T304L stainless steel.
• Investment-cast X-pipe merge.
• Installs at the specified factory interfaces without cutting or welding.
• Covered by the Fabspeed Lifetime Warranty, subject to the manufacturer's terms.

Competition Use

This product removes factory catalytic converters. Fabspeed specifies closed-course competition use, not public-road use, and states that it is not CARB or EPA certified. Catalyst-related fault codes may occur. Confirm the permitted application before purchase.

For help matching the component to your car, contact PMB Performance with the model, year and installed equipment. Our team brings over 20 years of experience to the conversation.

Fitment & Compatibility

For Aston Martin DB9 models from 2004–2016. Match the secondary catalyst arrangement and connections to the installed exhaust. This does not replace the rear mufflers or establish compatibility with other Aston Martin platforms.