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      01-28-2013, 01:13 PM   #4
Greenkirby21
Vrooom :)
 
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Drives: BMW 128i
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great DIY and information as always dack.

I have a question. Whats the difference between this and getting a muffler shop to just cut out the secondary cats and put a small tube in their place?
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2009 128i Coupe Crimson Red MODS: -Injen Intake-Magnaflow Exhaust-Carbon Fiber Spoiler - Carbon Fiber Grilles - OZ Ultraleggeras - CF Mirrors
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