I installed a PFS SMIC and my boost pattern changed. it was 12-10-12. After it was installed it dropped a tad to 11-10-11. I checked all the band clamps for a leak and they are all tight. All the couplers are in good shape. Is this just a tuning issue?

 

Do you have a boost controller or is this just running the stock pills.

 

its not a tuning issue.... the turbos will make a designated PSI via wastegate or boost controller no matter the tune.

what you are experiencing is a textbook example of pressure loss using a larger I/C core.

what were you running before? the stock i/c?

 

zack-No boost controller

sptpain-yeah i was on the stock IC