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Old 07-27-2013, 07:58 PM   #22011
Scooby Newbie
Member#: 338312
Join Date: Nov 2012

Originally Posted by blehhh View Post
You need a tune.

You've completely thrown off the mass air flow sensor by altering the intake piping. A correct tune will have MAF scaling to dial it back in.

Usually aftermarket intakes are larger piping, so slower moving air, so lower MAF readings, so less fuel. but since it's actually more air, now being given less fuel, you're leaning out an already incredibly lean tune.
You recommend to use the stock air with panel filter cosworth on stage 2 2011 wrx? or.... a full intake ?

my setup:

process west tmic
synapse diverter valve
tsudo bellmouth downpipe
invidia n1 dual catback
protune 19-20 psi
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