


The top plate on the manifold has a valve that is opened by an actuator at different times to alter the runner length, varying performance by RPM.

Others had the manifold exposed and to improve the look of the manifold it was painted. These manifolds came on a couple different models of engines, some of which have engine covers over them to give the engine an attractive look. However, cast magnesium is not very attractive. The J37 manifolds are made out of cast magnesium, making them lighter weight than the standard aluminum ones.In fact, the entire J37 throttle body is larger meaning your stock throttle body will not fit on a J37 manifold. Additional to the manifold itself being larger thank your stock J30/32/35 one, the throttle body opening is larger as well.
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The added volume and flow of the J37 manifold is a great upgrade over the J30, 32, and 35 engines especially if the engine is modified with higher flowing exhaust and engine tuning. Right out of the box they support over 300 naturally aspirated horsepower. The J37 manifold is a high-capacity manifold that was offered on the highest output J-series engines from the factory.Heeltoe has made buying a J37 manifold package easy! Depending on your engine, a few options are available to make sure you get the right parts at the best value. The largest manifold Honda has made for these engines to date is off the 3.7L J37 variants found on SH-AWD TL and ZDX engines. Swapping the intake manifold on the J-Series Honda V6 engine is a simple way to add power. Fastbrakes Rear OE Caliper 12.3" Rotor Upgrade for Accord/TSX.Weld-In Catalytic Converter (Universal).Direct-Fit Catalytic Converter & Test Pipe.
