Originally Posted by
Mr C
Ok blacks on my shopping list, can my existing chip run them or be re written? How does the -31 differ in use from a -34 please if both have been used they both must work but what's the difference in power delivery etc?
you'll need a new chip if you want to use new injectors, but if you havent got the money at the mo, greens will be ok - you just wont get the best out of the turbo
the difference between the 2 actuators is the lift pressure, 8 psi for -31 and 14 psi for -34
heres a good article
https://passionford.com/forum/techni...ifference.html