thinking of buying my mates version 4 sti wagon . He had it mapped straight from import to run on super unleaded by andy forrest he estimated around 320 bhp , only mods on the car are cat back s/ s exhaust and k and n panel filter . Just wondering if 320 bhp will be reliable with ony exhaust and filter as mods . Cheers...

 

mapped will be more reliable than standard map assuming its done properly.

 

Mine has been mapped a few years back and going strong. Had it on the rollers, and still running well.