When I had my car built I was set on Kooks long tubes, High flow cats and Magnaflow 16510 street exhaust. Well it sounds absolutely wonderful! However, at about 1700+ RPMS life starts to get unbearable inside. A long drive and you want to run a screwdriver in your head. My question is, any body have a similar setup they experimented with? I am wondering maybe take out the resonators and use just the mufflers, or take out the mufflers and use just the resonators and put in J pipes??? Anybody?