Skunk2 Ultra Series Race 1-Liter Intake Manifold Plenum Spacer Silver - Honda B/ K-Series - 907-05-9001 91mm The harness comes wired with

The harness comes wired with the provisions for the OEM K-Series 02-04 Wideband o2 sensor and an OBD2 port

Civic Si (FC1/FC3 Si) – (10%-30%) Reduction

ESTER Core® Technology features optimized polarity for maximal adherence of the oil film to increase engine protection

Nissan 350Z/370Z FIC's Data Matched high performance fuel injectors featuring high impedance Bosch core

The sleek design of the shrouds will totally change the look of your engine bay

Skunk2 Ultra Series Race 1-Liter Intake Manifold Plenum Spacer Silver - Honda B/ K-Series - 907-05-9001 91mm The harness comes wired withThe Skunk2 Racing Plenum Spacer is used to increase the internal volume of the Ultra Race Intake Manifolds by 1 Liter. Includes: Billet Aluminum Spacer Longer Socket Head Hardware Gaskets