Nothing after 5000 RPM

[livedsm4g63]

Well I just got my dsm about a month ago and i am having some trouble with it. The car boosts fine up to 5,000 rpm but as soon as i get to 5 it feels like the clutch is slipping and it stays at 5. This doesnt makes sence to me because if the clutch was slipping then it would slip in the lower rpms. So my question to you guys is, do you think its a boost leak? or do you have any other ideas of what it could be? The car holds boost around 13-14 psi

 

[blownturbotsi]

What kind of exhaust do you have? Try running open DP to see if it helps, if not try taking the DP off completely and see how it does up past 5k. Sounds like you have a clog somewhere in your exhaust.

 

[livedsm4g63]

well it is stock exhaust

 

[disciplekyst]

Do you feel a loss of power upwards of 5k or the car works fine until 5k and that ignition seems to stop?