Just bourght a Detroit bypass valve from Outmotoring.
Managed to track delivery,which was usefull.
Fitted it yesterday,a,great improvement no more yo-yo and better acceleration too.
Very pleased thanks.
Would recommend Outmotoring to anyone,thinking of buying parts for their mini.
Item showed up fast, and is super easy to install. Looks great.
I ordered the NM power module and a K&N CAI for my '16 F54 S Clubman. Both were very easy to install with the attached instructions. Shipping and service were excellent and I will continue to buy any items I need from these guys.