Originally Posted by 135pats
The 5858 bottom mount is a good kit for a reliable 550-575rw but Ando is looking for something closer to 650whp. We've been thinking of swapping the turbo but he also likes the idea of a top mount and given this GB price and the good spool speed switching his car over makes sense.
BMS has 3 single turbo development cars. I hope all are running at the next runway event for some side by side comparisons! The 135i with the FFTEC 5862 TS "reining champ" will have its hands full.