Quote:
Originally Posted by CrimsonXV
Bump.
Has anybody done this yet? I'm really anxious to see if it sounds the same on the 135i as on the 1M.
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A lot of people have done it...... you should try that little feature at the top called "search".
Ilikebmxbikes, venom, and many other users have done this. It involves swapping the battery tray, wires, and bumper (metal bumper under the plastic bumper cover) and relocating the charcoal canister. After this is done you will need to custom fab a diffuser as there is none off the shelf that will work due to exhaust tip spacing, or do a full 1m rear end conversion with bumper cover and fender flares.
No reason it would sound any different on a 1m than it would sound on an N54 135i.
End of thread.