Quote:
Originally Posted by BlackX5M
Ultimate Racing is IMO the most reasonable. They're the cheapest by far. Also have AR Designs, Agency Power, Supersprint, Akrapovic, Gintani and a couple of others that I can't think of right now.
I'm actually about the pull the Ultimate Racing ones off my M when I get it back from the dealer. Its a lemon, and I'm working with BMW to get rid of it, so it needs to go back to stock. Not sure if I'm keeping them or not. If I get another N63/S63 car I can reuse them. If I get an N55, which is looking pretty likely, they'll have to go.
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The Ultimate Racing DPs doesn't have a "flex pipe" version. Do you see any issues with using a DP without flex pipes? The akra and AR Designs both have flex pipes welded in.