Thread: K&N on 135i
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      09-13-2010, 08:13 PM   #1
evilstib
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Drives: CSM N54 Prem/Comf/Sound
Join Date: Aug 2010
Location: Bear's Ass Canada! (Fort Mac)

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K&N on 135i

Anyone have the K&N drop in filter on their 135i?

How's it sound? I can get one locally for $100...Any sound increase?

Any other ideas?

I'd like a bit louder sound on the car. I've done the Dinan Stage 2 already. Sounds nice, but still a bit quiet.

I notice on most of the exhaust systems that you mostly hear 'engine' out the tail pipe and not 'exhaust' (I used to drive a civic...I know exhaust ;P )

Is this the turbos that silence it? I notice that downpipes increase the 'exhaust' noise a lot (cat delete), but I'll most likely void warranty (posts on turbo spool & boost creep..etc.)

How can I make that beautiful noise louder without any warranty problems?
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