Greddy Upper I/C and Tial BOV....

[Hadda V8]

Ok, I just got done putting on Upper I/C pipes and BOV and took it out on for a spin 14b boosted 25lbs and felt like a champ...Pulled over immediately and turned down the boost and got it back to safe 16...but it didn't boost 16psi until like 5k rpms and felt like I was stuck in the mud? I took it out on the HWY and it keep boostin' up to about 18lbs then I would let off, didn't want to kill it. But again on the Hwy it took for ever for it to boost. Normal boost hits at like 3k but now it takes till 5k or so to start making any boost. Any advice would be GREAT!

 

[allwheelTSI]

sound like a possible boost leak,did you go over all the ic pipes and make sure every fitting was real tight?

that 25psi run could have popped a head gasket,you should've never gone that high on pump gas,ESPECIALLY on the 14b.