“Very easy to flash, used my laptop & followed Instructions step by step. Was done in under 20 minutes and was able to go for a drive right away & it is a night & day driving this car. I can’t wait to get more mods.”
“Couldn’t be happier with my purchase made the car so much better granted it’s a 9th gen si but twostep still said they would honor the tsp stage 1 tune down the line when I upgrade to a 10th gen si so that’s amazing these guys are awesome much love for them.”
