FAST LSXHR Cathedral Port Intake Manifold LS1 LS2 LS6

FAST LSXHR Cathedral Port Intake Manifold LS1 LS2 LS6

Marsoni

M251S

$534.48

Get it in 3 business days with 1 day shipping. Friday, May 29

FAST LSXHR Cathedral Port Intake Manifold LS1 LS2 LS6The FAST LSXHR 103mm Intake Manifold is ideal for generating maximum power in boosted and naturally aspirated GM LS cathedral port engines. It ships with a set of tall removeable velocity stacks, however medium and short stack options can be purchased separately. This allows interchanging of the various runner lengths so racers can experiment with finding which combination makes the most power in their application. Its polymer construction is

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So the quality of this not great, but good enough and they look nice enough on the wall. However, the bracket holes are not spaced at 16" intervals. WTF? I'm not sure who designed this thing. The molly plugs that came with it look OK, but to play it safe I used a cobalt steel drill bit and made my own holes in the bracket. Easy enough with some wd40. My other pick with this is that the screws to anchor the shelf to the bracket are black and and very obvious... they should have supplied some kind of cap.

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Reviewed in the United States on January 31, 2026