Hi guys
I want to upgrade engine performance for 9000 2.3t w/auto 1997MY
but I don't know which company of tuning parts is really good for it
Not too expensive parts I want..
how about SQR? Maptun is good but It's a little expensive
Do you think they will give some discount?
How much discount they usually give to the customer?

any reply will be good help for me..