The "HF Manifold"
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Everyone refers to it as the HF manifold but it came on other cars too. it came on the 88-91 CRX HF. it also came on a 88-91 Civic Std, they are hatchbacks with a 4 speed, vinal interior, and a black panel on the hatch that says 'Civic', (base model) Another car that has them is a 92-95 Civic CX/VX hatch. Newer cars have the precat style manifold like the HF manifolds. But they Pre-cat and manifold are 1 piece. You would have to chop off the cat inorder to use it.
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![HF_manifold_CX-VX_P.jpg]()
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This manifold is off a 93 Civic CX/VX, notice it has a "L" on the #4 runner.
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![HF_manifold_all_1_P.jpg]()
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The HF, Std, & Civic CX/VX from top to bottom. As you can see there really is hardly any difference in the manifolds. The STD has the largest runners, and the HF/CX manifolds are nearly identical.
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![HF_manifold_HF_P.jpg]()
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No markings on the HF manifold.
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![HF_manifold_all_2_P.jpg]()
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The CX/VX, Std., & HF (top to bottom)
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![HF_manifold_STD_P.jpg]()
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The STD manifold has the number three imprinted on runner #4
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![HF_manifold_all_3_P.jpg]()
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Left to right, CX/VX, STD, & HF manifolds
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These manifolds are perfect for turbocharging D-series Engines, The head configuration on D-series is the same on 88-00 (maybe even the new D17 will work as well) Even the odd D16a1 from eairly Integra's. I do recommend porting them to match head ports, for best performance, and using a new exhaust manifold gasket.
*Note these will not fit B-series Engines, not even close.
Pics Provided By TurboHF
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