Pennsylvania's a real emmissions PITA. My truck was converted to 2" duals before I bought it. I couldn't get it passed on the emmissions without the convertors so I bought 2 universal cats at Advance Auto ($60 each). I added them in approx. 12" ahead of the mufflers. The first shop wouldn't even run the computer test because he said I had 1 too many convertors according to my VIN. It passed both the visual and computer emmissions test on the second try at a different shop.
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George
82 Silverado LWB 4x4 350 SM465 NP208
77 Chevrolet Blazer Chalet 400 TH350 NP203
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