I echo the advise that 3" is unecessary unless you are pushing some serious power. It's a pin to make pipes that big fit without rubbing on anything. If you have no emissions requirements and an automatic transmission, use the Summit or Jegs 2-1/2" G-body kits and add the headers and dual hump crossmember. If your body mounts are flattened, you may have some work to do to clear the floorpan. You'll have to add your own X-pipe if you must have that. Both brands basic kits exit under the bumper like a Monte SS, but it's not hard to cut and adapt to exit behind the rear wheels. Stainless Steel is an option, but welding is a problem. It's all how much you want to spend. Coated headers? Extra. Ask Turna nicely and he might even help you.
Ha! None of this is necessary, but 3" exhaust sounds nice........Like Mike Finnegan says: The music of my people!
Also, watch this episode of Engine Masters, 3" with straight through mufflers kills almost NO power!
I only need an exhaust system. Made up my mind on mufflers years ago, already have 1 3/4" coated Schoenfelds and a G force crossmember. I wont settle on an exhaust that goes to the rear bumper. Gotta end behind the rear wheel and I really want the tailpipe to be 2 1/2". Not sure what I'll buy at this point but I have someone that can tig SS tube.
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