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2010 2011 BMW 5 Series Forum F10 F10 Technical Topics Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications X-pipe question about size
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      01-13-2013, 11:27 PM   #1
AlpineWhiteM3
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X-pipe question about size

What to do since noone sells x-pie in 2.75 and thats what we need ? Should we run 2.5 or 3.0
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      01-14-2013, 01:31 AM   #2
Nobleman
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If its 535, you need 2.25inlet diameter. Get Magnaflow tru x pipe.
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      01-14-2013, 09:24 AM   #3
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sorry forgot to say its a 550i
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      01-14-2013, 09:49 PM   #4
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I've made an exhaust with both setup.
Can't says i felt a difference going from 2.5 to 3 inch.

I made these myself, and I learned how to weld doing these, so no comments on weld quality

2.5 long X-pipe, is an X-pipe made by Corsa for Corvette's
3 is the short Magnaflow x-pipe
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      01-15-2013, 11:11 AM   #5
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any difference in sound going from 2.5 to 3?
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      01-16-2013, 09:17 PM   #6
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Can't say there was much of a difference.
Barely noticeable.
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