I'm close to going forward with shelling out $379 for the "mail order" brenspeed tune. I Just wanna hear some thoughts from people who have done this as far as the power and performance gains you experienced from this. ive raed some people say they don't do much and that a dyno tune is the only way to go and I've heard some people say it seriously woke their car up.
mods: JLT RAI, O/R prochamber, catback.
mods: JLT RAI, O/R prochamber, catback.