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Old 08-09-2013, 02:14 AM   #24
hummelsubaru
Scooby Specialist
 
Member#: 220153
Join Date: Aug 2009
Location: PRC/UK
Vehicle:
'05 WRX JBP WFC#207
GTX3076 ViPec V44

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Quote:
Originally Posted by J3SST3R View Post
Probably the square piston design that makes these strokers a knocking b****. and a combination of the lower grade fuel, Meth might help your situation but only to some extent before hitting the same plateau your at currently...
why square piston design makes those knocks?

Meth is ready and waiting for rewiring to the ViPec

Thanks mate!
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