I have Stu's Closed Loop Stage 3 Chip on my Escos.. Its the business !!

Mine peaks at 27psi holds 24psi..... I reckon without the ported head i would still see 340+ BHP.

I fitted and setup up mine myself, set the boost, a couple of runs
up and down the ring road, job done !

Took it for a rr run, perfect...!