i have a 2001 4.2 5spd with MAC CAI and TBS no cats true duls with magnaflows and rear o2 sensor simulators.
true duls to me sound like crap with no cat because of the resonece and not enough back pressure to much of a ricer sound, i know that its a v6 but i had cats b/f with a flowmaster and it sounded smooth at least. I have been trough three sets of mufflers cause the cambers always break and rattle at certain rpms and now i have holes in my pipes too. im about to put another system on starting with new fittings and pipes and high flow cats and making the new y-pipe into a SI/DO muffler from the exhaust manifolds (new ball joints not just cut and paste like it is now!!!)
my question is should i put the rear o2 sensors back into the pipe after the cats or should i just keep my simulators??
plus i have the classic lean B2 and B1. my truck sounds and is running like crap i think i have a passenger side exhaust leak too!! go figure..try to modify and is screws things all up.
HELP ME!!!!
