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Old 07-27-2013, 06:25 PM   #22006
blehhh
Scooby Specialist
 
Member#: 316517
Join Date: Apr 2012
Chapter/Region: NESIC
Location: Portland, ME
Vehicle:
2012 WRB WRX Hatch
TP Stage III & ELH

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Quote:
Originally Posted by 13whiteguywrx View Post
No need for a tune yet. I like it so far going to flash over to stage one and see the difference though
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.
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Last edited by blehhh; 07-27-2013 at 06:32 PM.
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