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For improved Street Flow. This is best for you those of you running evo manifolds and a 16g turbos with other small bolt ons.
What the stage 1 porting includes:
Soften sharp edges to help flow cone develop quicker in the valve head area
Blending of intake and exhaust runners
3 angle valve job
Works well with mild boost levels
This is a service only..You must send us your head. We do not offer head exchanges at this time.. Please call us for more information.