DIY: 335i Exhaust Sound Mod. Better, and even easier than golf tee mod.
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05-30-2013, 01:32 PM
Drives: '11 335i M-Sport
Join Date: May 2013
Thanks for the write-up OP.
JB4 Stage 2 w/ FF | Cobb AP V3 | Custom E50 Backend Flash by PTF | BMS Intake | BMS DP | VRSF CP | Alpina B3 TCU | Custom Coding
LUX v4 LEDs | Shadowline Grills | M3 Lip Spoiler | 5% tint
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