Using our experience with the KA24DE in the 240SX, we have fabricated this manifold to optimize performance for the Altima crowd.
Xcessive Manufacturing's intake manifold for the KA24DE FWD motor (Altima) is designed to take advantage of the factory high port/runner design and dramatically increase flow for boosted motors or N/A motors looking for more mid to high rpm power. With a smooth radius entry and angle cut runners, a velocity stack effect is achieved without having stacks protruding into plenum airflow and causing turbulence. The new plenum is permanent mold cast for superior finish and casting soundness with a phenolic shell core used for internal walls to yield some of the best quality available. The plenum is drilled for the factory throttle body and bolt pattern but comes pre machined for up to a 70 mm bore (Up to 80 mm bore available and custom bolt patterns as special order, call prior to ordering.) The two piece runner/plenum design also allows for easier porting and polishing of the intake.
The manifold kit includes the welded flange on the factory runners, new Xcessive plenum with 4 vacuum ports, new stainless throttle bracket, 5 plenum bolts, 5 plenum studs, five flange nuts, two vacuum fittings (1/8", 3/8") and two vacuum port plugs. Factory sensors will need to be reused as well as the lower PCV manifold and hoses. The stock AAC is not used and may require tuning, an optional AAC remote mount kit is available (click here).
An $80.00 core charge is applied for the runners. It will be refunded upon Xcessive's reciept of your old runner set. The $80 is applied in the shipping calculation and will be refunded via mail. If you have a set of runners you would like to have used (ie. polished, coated), please contact us prior to ordering.
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