Anyone using the Challenge HFC or Challenage exhaust + HFC with the new F30 BMW Power Pack that was released? I'm looking for an 'all-clear' on CEL's and whatnot.
My plan was to get the dealer upgrade; then the HFC. But with the dealer stuff on backorder; I'm going to do the exhaust while I wait on Germany I think. Anyone?
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2012 F30 BMW 335i
8sp; Red; Sport, 20x9f; 20x10r (wearing 245/275's) Bronze Forgeline DE3C's, M-PPK, Challenge HFC-DP.
Winter Setup: 18x8 Black Enkei's with Blizzaks!
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