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Old 06-17-2020, 05:47 AM   #1
IneedAZ


 
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Drives: 2017 ZL1 A10 & 2021 BMW M340i x Dr
Join Date: Mar 2009
Location: Tampa
Posts: 5,110
Who has changed the heads or ported theirs?

Decided this needs a new thread. Curious if you had yours ported or replaced. I am on the fence. How much gain from porting? How much from New castings? Was looking at the Texas Speed heads or to do the porting.

I know probably not needed for my 750-800rwhp goals, but since it is apart it is now or never. I am adding a BTR Stage 2 and a 2650 all on 93.
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2017 HyperBlue ZL1 A10 ** Born 3/17/17**Delivered 4/08/17
2020 Build: Mag2650, BTR Stage2, NW103, BG, 14% lower, 90mm upper, ARH 2" Long system w/no cats, SW Legend mufflers. **807hp/762tq on 93 gas** and **848hp/792tq on e47**

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