Injen Technology Evolution intake system including a double polyethylene made dynamic airbox and intake pipes, "nano fiber" washable air filters and all hardware required for easy install and great efficiency on : BMW M3 F80 / F81 BMW M4 F82 / F83
Highlights
Direct bolt on Dyno proven gain = +22hp at 4200rpm Double Polyethylene dynamic air box Nano fiber Injen washable air filters Black polyethylene intake pipes Hardware included Made in USA
Engine
