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1320 Optimum Bypass Valve - R53

Generation 1 R53 - 2001-2006 MINI Cooper S R53
Manufacturers: BMW , 1320MINI

One of the problems we commonly see with the bypass valve on the R53 Supercharged MINI Cooper S is that the butterfly doesn't close all the way due to a weak or broken spring, therefore you’ll be losing precious boost at wide open throttle. 1320 can supply and fit you a new modified OEM BMW bypass valve which is adjusted to close fully ensuring that you will now see maximum boost at wide open throttle.
A brand new BMW OEM part modified in house by 1320MINI.

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