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Okay, it's now almost a year since I last posted. I have 90,000 miles on my CPO 2008 135i. I had to replace the fuel injectors, the spark plugs again and now the ignition coils, then I upgraded the LPFP to give my HPFP and Turbo more fuel at the track. Most problems went away, but we just replaced the HPFP again because of some low pressure readings on my Cobb AP. I have the Turbo wastegate rattle that the dealer wouldn't fix under warranty, so I'll either live with it or pay $6500 to upgrade/replace my turbos.
I probably will get a Surge Tank for the LPFP because at the track with a low amount of fuel, I will lose fuel pressure when the gas sloshes away from the LPFP!
Both my HID Adaptive headlights went bad ($850 each), and I replaced the extra Oil cooler with a double competition ER Oil Cooler because it was overheating and going into limp mode. But now with everything working and the Cobb AP custom tune, I am getting 400 HP and 550 Torque.
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2008 135i coupe w/Sport Package, aFe cold air, TC Kline DA suspension/Camber plates. AA Charge pipe/BOV, cat-less Downpipes, and AA FMIC. SuperSprint mid-pipes, Cobb V3 AP, and Corsa muffler, Wavetrac LSD, M3 contol arms and bushings + RSFB, Rear Toe-control arms, Front and rear H&R sway bars, shock tower brace, Hawk track pads, Michelin Pilot Super Sports. Enkei wheels.  |