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Well, I was a big fan of ATP 3" DPs until recently. I started seeing some cracking symptoms on customers cars, but I wrote it off to the use of stock motor mounts. Recently though, the cracking on the race section has gotten out of hand. My friend and I BOTH broke ours after a lapping day at Lime Rock, both of us using poly engine mounts. I have a customer who broke it 2x, and now has broken the flex section. While I still believe it to be the best fitting DP on the market, the cracking issues have now come to the forefront. It needs to be reinforced or welded better in the race and flex sections.
-Mike P

-Mike P