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      09-27-2006, 10:30 PM   #9

Drives: X1, 335i
Join Date: Sep 2006
Location: SF Bay, CA

iTrader: (0)

Originally Posted by
holy cow.

332whp? already getting into V8 M3 territory. All this is done with just ECU tuning? Any aftermarket mods on the car? intake system? exhaust? piping?
"Another thing we did was made a cat-back exhaust system for it. Nothing fancy. Just a one-off prototype that we pieced together with 2.5" crushed bent piping and standard magnaflow mufflers. It replaces the exhaust just after the downpipes. The two factory cats in the downpipe are still in place. But the secondary cats, along with a bunch of bendy exhaust tubing, was all replaced. If we can make good power with this quickie exhaust, we should do really well with a production version offering larger volume mufflers, mandrel bends, etc,. In a way, I wish I had waited to put on the exhaust later and just re-dynoed the car with just our new-found fuel and boost control. But I didn't. So shoot me. We could always stick the stock exhaust back on next week and dyno it again. But hey, I was impatient for a fast car that actually sounded fast"

Last edited by OpenFlash; 09-27-2006 at 11:11 PM.