Thread: 77GP Exhaust
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  #16  
Old 12-15-2014, 06:25 PM
7t7gp 7t7gp is offline
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Join Date: Nov 2014
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Hi all, I have a 77 Grand Prix and like so many here I wanted true duals. Luckily for me I was working at a muffler shop at the time so I was able to bend up my own. But I was going to point out that the stock cross member can be modified to accept a dual exhaust. I took a piece of 4"pipe(hold a section of exhaust pipe inside it to make sure it fits first) and cut its length to the width of the cross member. I then cut it in half so from the end it resembled a u. I took this piece and used it to mark the cross member and once you are happy with the markings, cut this section out. Then put your u shaped piece of pipe into the cut out and if it fits weld it in. After that, grind and paint as necessary. Obviously this is all assuming you have a welder and other fabrication tools on hand. I now have a Grand Prix that sounds great and I have a minimal amount of money invested in it.