2003 3lt st down on power and engine light on

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Glad to be of help Ben.
Here is a link that will help you fit and set up your Dawes and needle valves. No chit mate it isnt that hard to do.
The only part I needed help with was welding the nut to the intercooler pipe to except the t piece. I got it done at local exhaust shop for $10.

http://www.chaz.yellowfoot.org/Manua...Controller.htm

Dont worry about turbo timer, just go off your EGT gauge temp.

Good luck and let me know how you get on.

Cheers.

Paul.