Dougs

I have a set of Dougs 453's on my 340. They fit great, and have better ground clearance than the TTI's by about 3/8". I did need to put a couple of small dimples on the drivers side tube for the torsion bar, but I also run 1.12" torsion bars. If I had stock bars they would have fit fine. And if anyone thinks that a set of stock manifolds outflows a set of headers with a couple of clearance dimples, well, I want some of what you're smoking, 'cause it's great stuff.

A quick search here will show you there are plenty of people that have had to dimple their TTI's too. The factory tolerances on these cars aren't that great. Paying an extra couple hundred bucks for TTI's doesn't guarantee you won't have to dent them, it just means you payed an extra couple hundred bucks. Some cars won't need the headers dimpled, some will, regardless of whether they're TTI's or Doug's. I'm sure the Doug's fit some cars better than TTI's, just like I'm sure TTI's will fit some cars better than the Doug's. Just the name of the game with 70's factory tolerances. My EL5 GT had rubbed a hole in the crossover exhaust tube with the steering link, and everything on that car was factory, bone-stock.