you mean feel the earth move beneath them as you pass
Ive got APS decat pipes custom 3" y-pipe and a K1 with no bungs in! now thats LOUD!!! but it dose sound like crap and the resonance is killing me
Have fun mate think just having the K1 sounds much better
You wanna try headers, decats, y-pipe & a single exit with no resonators at all
Its so loud im considering a K1 just to tone it down a bit