I have a 1994 Caprice with the 4.3 Lt1 engine frown: sad to say its not the 5.7 like I hoped for) I was wondering if anyone could give me any advice on how I can make it sound like a MONSTER. Its a single exhaust so I'm not sure if its actually an LT1 I think its the L99 but thats what the guy told me not really too pissed cause it has some get up and go... I used to be into Jap cars and did the whole turbo thing just thought I would try a little AMERICAN MUSCLE. Can anyone help me out? Also wanted to change it to a Duel exhaust.