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      01-08-2010, 05:45 AM   #51
M3 Pilot
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Drives: 17' F80 M3 ZCP
Join Date: Sep 2009
Location: Singapore

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The boxer tone is due to the unequal length headers.

Replace that with equal length headers and it sounds like a normal 4 banger.

Here's my Evo fart can. Enjoy

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