Dual Plenum Intakte Manifold for all Z20LET, Z20LEL, Z20LER and Z20LEH. Complete computer-based construction and simulation! Equal length and optimized air distribution through built as dual plenum manifold with unique design. On stock engine you have 30-50hp more power in higher revs. On Stage 5 are more than 100hp possible. Weight 3.5Kg (Stock 4.4Kg) Dyno plot Stage 5 with dual plenum manifold:
