alucardo 55 Report post Posted October 15, 2016 New or Used must be able to pass Donnington track noise restrictions as ill be on track next year. Share this post Link to post Share on other sites
Deacon 1357 Report post Posted October 16, 2016 I may have a cobra non resonated for sale soon. No idea on the Donnington question though. Share this post Link to post Share on other sites
alucardo 55 Report post Posted October 16, 2016 I read your thread as Donnington is 98db driveby this exhaust will most likely fail. Share this post Link to post Share on other sites
Deacon 1357 Report post Posted October 16, 2016 35 minutes ago, alucardo said: I read your thread as Donnington is 98db driveby this exhaust will most likely fail. No worries 👍 Share this post Link to post Share on other sites
Deacon 1357 Report post Posted October 16, 2016 Just had a look through the thread. Me and @will300 did do some drive by readings too. I'll see if I can find the data. Share this post Link to post Share on other sites
Mike@TD.co.uk 467 Report post Posted October 18, 2016 We have our resonated systems available and have free fitting currently? This will pass a noise test no problem on an otherwise stock exhaust system. Thanks Mike Share this post Link to post Share on other sites
alucardo 55 Report post Posted October 18, 2016 That sounds just right to my ears. With the frontpipe changed is there any increase in volume? Share this post Link to post Share on other sites
Mike@TD.co.uk 467 Report post Posted October 18, 2016 If you remove either of the CATs then yes the volume will increase. A stock front and second CAT, with our particular system, won't cause you any track day noise issues. Thanks Mike Share this post Link to post Share on other sites