Can just replacing the n75 increase boost pressure? If so, what part no is best and what benefits?(more hp?)
Car is a 2000 1.8T AGU A4,
Thanks guys
Car is a 2000 1.8T AGU A4,
Thanks guys
You need the N75J valve from an audi RS2, Spikes higher and holds boost longer.
They also cause it to go into limp mode...
You can just adjust your existing N75 valve to make it come on boost harder. Free to do, well... as long as you don't break it.
TBH i wouldnt bother. All it does is give a useless and dangerous huge spike of boost when the turbo first spools up. The J valve has also been shown by Welly on here to allow the boost to tail off earlier, presumably as a result of the ECU trying to control the massive spike and pulling back the N75 duty cycle.