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Glad to see this thread. I am thinking of ordering the TTI system for by '65 B-body. I have to decide:

1) 2.5" or 3"? Motor is a 493, dynoed at 586 HP, 620 ft/lbs
2) H pipe or X pipe? What are the pros and cons of each?

Also, does anyone know if the US Cartool "bolt to the crossmember" driveshaft loop will work with the TTI exhaust (either H or X tube)?

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Can't say on a 65, but I have a US Cartool driveshaft loop. It WILL NOT fit an e-body with TTi 3inch pipes and the X-pipe. Perhaps someone else can advise if it works with an H-pipe.

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