I just got my HKS downpipe. I want to know how much boost will increase with the addition of this downpipe? currently i have intake and catbak on my car. I am running around 10-12 psi boost. If the boost increases a great deal should i avoid WOT?(Coz currently i dont have the money to buy an aftermarket ecu)

 

I got the same thing on my car. All the hks dp does is get u up to top boost faster
Just watch out for spikes when the 2nd turbo kicks in (i've seen my go as high as 13-14 on occasions)

 

just be careful. Anything over 10 is risky but I have heard of people hitting around 14 on stock ecu without blowing the motor. It is very possible though.

 

since you don't have the money for an ecu, i would go out and get the home depot boost controller. that way you will easily be able to hold boost at 10-10.5 psi. that should be safe on the stock computer. once you get that done, you can do wot anytime you want. nick