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.
My base 2008 JCW was transformed to look like a race car thanks to all the help and products purchased at Out Motoring. They guys are the best!