Need some help. Have just installed the 4 cat system, but can´t realy tune it.
Dialed in the numbers 100/ 160 and the system opens up very nice.

My problem is at low revs 2-3000 rpm and putting on some heavy throttle, it opens wide. I want it to be quiet when I pass the neighbours and the only time it opens up would be around 4500-5000 rpm.

If you have any ideas there is a nice dinner and a cold beer waiting for you in Gothenburg.

Had a nice evening here yesterday, with Bruce Springsteen playing for a whole stadium. This is something you realy can export.

All the best