Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum - View Single Post - S13 SR20DET Intake Manifold, Greddy? Or ISIS Easy choice? I think not

om3ga · 07-15-2009, 01:06 AM

Youd think by just reading the title omg no brainer right go with the better brand if you can afford it!? Its not like that though, Im wondering which is better fitting it seems you have to do a little bit to get the greddy one to work correctly to i'm wondering if the ISIS one is the same way. Here are the things ive heard about each one.

S13 Greddy:
Change throttle body pulley to S14 one
Cut part of the Sheath on the throttle cable
Get a swivel adapter for the FPR

S13 ISIS:
Dremel part of the fuel rail so the bolt hole lines up with the manifold
Get shorter Throttle body bolts.

It seems to me like the ISIS one has less modifications to make it work? Or are those just extra things you have to do besides what is normally necessary for the Real Greddy manifold?
Im not concerned about the cost difference as much as i am the fitment and quality.

07-15-2009, 01:06 AM	#1
om3ga Zilvia Addict Join Date: Jan 2007 Location: Up and Down! California Posts: 878 Trader Rating: (8)	S13 SR20DET Intake Manifold, Greddy? Or ISIS Easy choice? I think not Youd think by just reading the title omg no brainer right go with the better brand if you can afford it!? Its not like that though, Im wondering which is better fitting it seems you have to do a little bit to get the greddy one to work correctly to i'm wondering if the ISIS one is the same way. Here are the things ive heard about each one. S13 Greddy: Change throttle body pulley to S14 one Cut part of the Sheath on the throttle cable Get a swivel adapter for the FPR S13 ISIS: Dremel part of the fuel rail so the bolt hole lines up with the manifold Get shorter Throttle body bolts. It seems to me like the ISIS one has less modifications to make it work? Or are those just extra things you have to do besides what is normally necessary for the Real Greddy manifold? Im not concerned about the cost difference as much as i am the fitment and quality.