Hks Subaru Impreza Sti Exhaust Manifold Grf Gvf

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Hks Subaru Impreza Sti Exhaust Manifold Grf Gvf

Nov 17, 2015
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Johor Bahru
# Subaru Impreza Wrx Sti

#Hks Manifold

# Made in japan

# For Grf Gvf Ej25

# 80% New

# Plug & Play

# Material Stainless Steel

#1Set Rm1800

# Call For More Information Mr Koh 0167335279
 

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All sifus,

I plan to go with S90 @ 70mm throttle body and aftermarket aluminium intake manifold to match with my Deratech cam.
Meanwhile, is upgrade on air flow meter is necessary?
If needed, what is the air flow code number is good to upgrade?

Also, changing in bigger air flow meter will make the engine run lean ?
Please advise and educate... Thx.:adore:
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