The Mishimoto Power Pack for the 2022+ Honda Civic Si replaces three of the most restrictive components in the factory forced-induction system with purpose-built upgrades engineered to unlock measurable gains across the entire power band.

Starting from the front of the induction system, the Performance Air Intake removes 50.7% of the restriction found in the stock intake path. The injection-molded MAF housing and high-flow oiled air filter work together to increase airflow and sharpen throttle response, delivering dyno-proven gains of up to 4.9 HP and 4.7 lb-ft of torque while adding an aggressive induction note under acceleration.

Air entering the turbo then passes through a significantly upgraded charge-cooling system. The Performance Intercooler features a bar-and-plate core with a 146% increase in core volume over the OEM unit, dropping average charge air outlet temperatures by 18.1°F. This sustained temperature reduction helps maintain consistent power output and reduces the ECU's tendency to pull timing during extended hard driving. The intercooler's cast aluminum end tanks and welded construction are built to support builds up to 572 HP.

Completing the system, the Performance Intercooler Pipe Kit replaces the factory piping with high-flow aluminum pipes that increase hot-side flow area by 103% and cold-side by 75%. The redesigned routing eliminates the OEM resonator for a more aggressive induction tone and unlocks an additional five horsepower over the intercooler alone. Five-layer DuraCore™ silicone couplers and high-quality worm gear clamps ensure the system handles extreme heat and boost pressure over the long term. A pre-drilled 1/8" NPT port on the cold-side pipe is included for sensors or gauges.

All three components install without cutting, support full reversion to stock, and are covered by the Mishimoto Lifetime Warranty.