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      10-20-2019, 08:02 AM   #1
Zeezu541
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Drives: F20 M140i || M3 F80
Join Date: Sep 2016
Location: Blackburn

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Oem exhaust modifications

Hi guys I have an M140i and want to modify the oem exhaust by opening the backbox and either:
1: replacing the perforated pipe with a straight pipe
2. Welding the holes in the perforated pipe

Could anyone advise which is a better method