I Have A 2003 Evo 8 With The Following Mods:
Invidia Turboback Exhaust W/ Test Pipe
Injen Intake W Full Piping
Walboro Fuel Pump
Invidia Exhaust Manifold
Turbo Xs Mbc

Ok So I Just Took My Car To Get A Dynotune W Reflash And The Numbers Are Making Only 250.9 Whp @ 22psi On Stock Turbo.!!! The Shop That It Took It To Told Me That The Invidia Manifold Was Causing The Loss Of Hp And That I Need A Bigger Turbo. Is This True.? Will A 20g 10.5 Help.? What All Would You Guys Recommend I Add To Make Larger Numbers That I Am Making Now.?

 

what kind of dyno was it?

 

This is key info we need to know.

 

the dyno sheet says awd dyno dynamics dynamometer

 

this sounds like a bad tune, even on a DD, that manifold should be fine all its doing is allowing better flow i never heard of getting less HP because a manifold?

 

Glad we could help today. The car baselined at 251whp on our Mustang Dyno and left with 335.6whp.

When you invest in the right shop with the right know-how, you get the right results.

Congrats on your +86whp TTP-Engineering dynotune.

 

^^^^ very nice