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Did you happen to dyno with both the 2" and 2.125 stepped headers? just curious how much difference there was for a 600HP engine.

Looks great. Are the 2 bent pieces that go from the header to the straight run with the muffler 45 degree bends?

My car has fenderwell headers and I'm thinking about adding an exhaust system. Can you guys post some pictures of how you did yours to give me some ideas. Thanks.

Who sells repop 340 manifolds for a 69 A body?

Who sells a nice header kit for a Mopar. Or who best to buy header kit parts from? Not looking for stainless or anything fancy, it will be a drag car and I prob will just paint the headers with high heat black afterwards. Have a 440 in a Duster with 1 3/4" TTI. Had 2" but really HATED working...

I forgot to mention my car is manual steering.

I used Doug Part Number D453 in my 73 duster and didn't have any fitment issues. Was an originally a /6 car, but swapped out the k member for a v8 and use v8 mounts.

I have used Summit Brand, Hedman, and Dougs in a 73-74 Dusters with small block and used TTI for big block in a 75 duster. The cheaper headers don't have as thick of a flange that bolts to the heads and sometimes the header gasket leaks or doesn't seal up as well. The cheaper brands also...