DIY: 335i Exhaust Sound Mod. Better, and even easier than golf tee mod.
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06-22-2009, 08:28 PM
Drives: '08 E90 335i, '99 E36 M3
Join Date: Apr 2009
Location: Houston, TX & Atlanta, GA
2008 BMW 335i Sedan
Just did this. Couldn't tell the difference at first but there's a significant increase in loudness, especially when cruising on the highway in 6th gear.
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