Bassani doesn't make a set of longtube headers for our cars. The 87-93 versions won't fit without a lot of custom welding on the x-pipe. The problem is that the collectors are right where the transmission crossmember is. Do not try to install these in your driveway without an extra section of 3" stainless and a welder. Then there is the issue of the x-pipe being 3" and your catback most likely being 2 1/2. You will need some means to either reduce down to the 2 1/2" pipe or your catback will need to be 3" also.
As far as noise, I have two chamber flows, and it still drones quite loudly inside the vehicle and screams like NASCAR at WOT. So I would look into a different muffler other then flowmaster.
As far as noise, I have two chamber flows, and it still drones quite loudly inside the vehicle and screams like NASCAR at WOT. So I would look into a different muffler other then flowmaster.