26-04-2018, 11:31 AM
(26-04-2018, 06:03 AM)Poodle Wrote: Do the exhaust first if anything, has a huge effect on how the engine pulls and responds, even before a map. Also will help reduce back-pressure and keep egts down at healthy levels.
Seconded.
Plus if it's a GOOD stg1 map... You will melt the cat
Wishes for more power...