Aston Martin DB9 Secondary Cat Bypass X-Pipe

(3 reviews) Write a Review

Increase power and sound with a free-flowing x-pipe section that replaces the restrictive and redundant factory secondary catalytic converters for increased exhaust flow.                                                                


  • Fits all Aston Martin DB9 vehicles (2004+)

  • Dramatic improvement in exhaust tone and noticeable power gains

  • Direct replacement for restrictive and redundant OEM secondary catalytic converters

  • Constructed from 14-16ga CNC mandrel-bent T304L stainless steel

  • Simple bolt-on installation

  • All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty


DISCLAIMER: This product removes the OEM catalytic converters from the vehicle, and as such, is strictly intended for closed track events and off-road use only. Racing Cat Bypass Pipes are solely intended for track and race cars as they are NOT California Air Resources Board Certified and not EPA certified. You are hereby informed and warned to check your local, state, and federals laws before buying and installing these or any aftermarket parts to be sure whether usage is in violation. All installation-risk and use-risk is borne by the end-user and installer of these parts.

HP (whp):
TQ (ft/lbs):
WT (lbs):

Videos Hide Videos Show Videos

3 Reviews Hide Reviews Show Reviews

  • 5
    Aston Martin DB9 x-pipe

    Posted by Robert T in California on 16th Nov 2017

    I have a 2005 AM DB9 with 6 liter V12. I just had theX-pipes installed and wow what a difference in performance. The unit is beautifully made and TIG welded. My shop had it installed in 90 minutes. Fit perfectly. Kept the stock muffler. At idle and low rpms sound level is about the same though a bit lower and throaty. Low end power is very noticably improved. Running through first 4 of 6 gears is fantastic. I am 105 mph in 4th and pulling strong. I have not dyno'd but sure there is extra 20 + HP. I wanted more power without more noise and that is what I got. No regrets.

  • 5
    DB9 sounds far better than I could have ever expected

    Posted by Anonymus on 10th Aug 2016

    Many thanks for your guidance through my whole X-Pipe process and the tour of the excellent FabSpeed facility. The DB9 sounds far better than I could have ever expected. Not obnoxious in any way but wonderfully toned and refined. The car seems to have been freed by the restriction of the back Cats, I cannot wait to see the video footage you guys took when uploaded to your site. For those potential customers reading this, I had a Quicksilver exhaust on my DB7 when living in the UK. This X-Pipe delivers well beyond that system only with the rear Cats replaced. A fantastic professional job all round from this specialist company.

  • 5
    Scratch that itch

    Posted by Old phart on 26th Jan 2016

    I installed it this morning and all I can say is WOW! It sounds absolutely amazing and the throttle response is very noticeably better. I would describe the sound as more "exotic". A higher pitch, very pure and crisp tone. I couldn't have asked for more. I'm going to try to make a video for a sound clip when I have some time. The installation was a breeze. Came with new hardware and everything was pretty self explanatory.