Hey guys. As many of you know I have a 91 camaro with a 1987 5.7 motor in it.. I have edelbrock shorty headers, are they good headers or no... My ypipe looks like someone riged it up to fit.. The 2 arms on it looks like 2.5 inch and they are welded into the rest of the ypipe, which is a 3.5 or 4 inch I forget... From there the rest of the exhaust is stock 2 or 2.5 inch... I have had the muffler off and it was still quit. But know my brother 93 z28 with a 5.7 in it, has bbk shorty headers in to a custom built ypipe into a 3 inch exhaust and with out the muffler it's loud...
Could it be my headers or my exhaust system.. Should I just buy a whole new exhaust system including headers to or what... Thanks for any help given..