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Posts: 89
Join Date: Nov 2011
Car: 335i
Default Bashing the *** - 03-15-2016, 06:05 AM


Really finding it difficult to find an Down ***** for my E89 - And coming to the conclusion that to purchase an secondhand Cats and bashing them out.

As I understand there will be some performance gains, but potential increase in turbulence due to the shape of the cats.

Has anyone BASHED there Cats out - and your experience?
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rustyminded rustyminded is offline
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Posts: 260
Join Date: Oct 2012
Car: Bmw 328i F30
Default 03-23-2016, 04:11 PM

well you are lucky I did this in my stock *** and it turned out amazing, power gains and barely any loud sound. I didn't even have CEL lol

F30 328i - 8 auto.. JB4+FF+EWG, OCC, Injen Intake+scoop, AFE dp, AA axle-back - H&R springs, H&R rear SB - Front Strut - F&R BMS spacers..
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