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Atr Downpipe With External Wastgate

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turbot4tm

New Member
Joined
Jul 27, 2006
Messages
13
I am going to install atr downpipe with a Richard Lee gate. My ? is do I have to do anything to my stock turbo, for this to work properly. Thank you. Tim
 
It would help to enlarge the wastegate port on the side of the turbo. Install it and watch for boost creep. If it starts to creep at high RPM, then the port is too small. You can enlarge the port on the car. Just grind the port larger and radius the inside to allow better flow, then start it up and the grindings will make their way out the exhaust. I've done this many times.
 
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