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This billet aluminum LT4 supercharger lid swaps in for the factory unit to improve airflow across the supercharger and help drop charge temps - good for roughly 25 horsepower before any power adder. Multiple 1/8" NPT bungs are machined directly into the lid so you can run nitrous and water/methanol injection through it. Supplied as the lid only for a clean, bolt-in install on GM's supercharged LT4.
Details: Billet aluminum construction; Replaces the factory LT4 supercharger lid; Integrated 1/8" NPT ports for nitrous and water/methanol; ~25 hp gain from improved airflow alone; Lid only - no solenoids, lines or jetting
Fitment: GM 6.2L LT4 supercharged (Corvette Z06, Camaro ZL1, Cadillac CTS-V) — Lid only. The '-WN' suffix denotes the water/methanol + nitrous port configuration (vs the nitrous-only '-N'); confirm exact application and port tapping with the supplier.
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