Quote:
Originally Posted by iconoclast
I contacted Active Autowerke (My Tuner of choice for BMW applications) and currently only a tune is available for the N55 but no exhaust or down pipe products. I contacted AWE Tuning and currently only the 28i is being worked on.
Anyone on here able to recommend some options for the 35i?
Thanks.
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Any N55 downpipe fits the X1...so there are tons of options.
As for the rest of the exhaust, you're looking at custom. The cheapest route for a better tone is probably to buy, for example, an aftermarket axleback (or BMW performance exhaust) for a 135i, and cut the pipe section off your stock exhaust in order to mate with the new muffler.
In other words, the 135 and X1 exhaust are almost exactly the same, sans some of the bends being a bit off from the muffler to the first joint.
The majority of gains are in the tune on this engine though, at least vs. a downpipe. So perhaps try the tune first, you probably won't miss the 10-20 HP the DP will add.