I use Harrys. At my home track I don't even turn it on anymore. When doing TT I have a transponder. I know those 4/5 tracks well enough to feel where i have blown a turn or left .2 secs on the track.
I will get a catalyst at some point.... probably used ;)
I know it could help shave a...
Your first mistake was buying into and believing “stage 2” crap
that dyno shows you were either robbed or tuner is a moron. Full stop
get money back and then find a good tuner that other Supra guys in your area have had luck
and hint: if they start talking about Stages keep looking A...
BMW hp numbers are measured at wheels not crank.
around 382 give or take a couple
If you want to know YOUR exact numbers take it to a Dyno. They all measure a little diff and altitude, heat, humidity all affects final numbers.
choose an exhaust that pleases your ear. Without tuning there...
We don’t have to anything besides brakes and fluid to track these fine bmws. All this rabbit hole crap is in the search of 1/10ths of seconds on the track- honestly
And
Because it’s fun race car nonsense
The wheel wells DO trap air with or with out a liner Do you need to cut up a perfectly...