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2010 2011 BMW 5 Series Forum F10 WTB - AR or ER Catted High Flow Cats or M5 Downpipes |
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08-01-2016, 01:21 PM | #1 |
Private First Class
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WTB - AR or ER Catted High Flow Cats or M5 Downpipes
Hello guys, I'm looking to buy one of the 3 downpipes. AR Catted High Flow Cats, Evolution Racewerks High Flow Catted, or M5 Downpipes. I have heard but would also like to get clarification if it's true but the M5 downpipes on a 2011 550i would be the best downpipes for quality, performance, and keeping it catted. If anyone has more insight please let me know. I'm looking for the best performance I can get out of my 550i. |
08-07-2016, 02:43 PM | #3 |
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M5 down pipes are highly restrictive and don't see how they would make more power over the stock 550 down pipes as they are similar design. Only 1 member claims performance but has no proof to back up the claims.
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