hey guys i need a question to be answered like asap please! my cat is acting weird, it bogs like hell whenever i'm sitting in my car for about 3 mins at 800-1200 rpm..whenever i try to go its like it won't untill i push in the clutch and rev it high 4000rpm +! and i was wondering if i had a muffler shop make a "test pipe" or a cat with the bolts all lined up right but instead of the CAT CONVERTER i would just have a pipe instead, and i was wondering if that would make it better, and if so, how much louder? 1 more question.......................................... .................................................. .......................................i have a full cat back R&D thermal exhaust and i was wondering if i had the muffler shop make me an axle back pipe and buy a tunabe or 5ziggen or something to make it softer if i got that "test pipe" would it be NOT so loud? or can anyone tell me what muffler brand would NOT make my set up so loud? thanks guys!!!