LAP3 Authentic Tuning Promo Codes & Coupons September 2026 — Up to 34% Off

PROSS, the tuning subsidiary of SPIRRA, which specialized in absolute power components and ECU program mapping, was the original name of LAP3 Authentic Tuning when it was established in 2002. Since its start, LAP3 has been a market leader in Korea for tuning thanks to its commitment to innovation and perfection in their bid for supremacy. Their objective is to provide genuine tuning services and goods for the American market that will maximize the potential of your car. Water Meth Injection Kit LAP3 Authentic Tuning stage4, The system builds a 3D customizable water-methanol injection system using Engine RPM, Boost PSI, and Throttle Position. Safely improve horsepower by up to 20% using the PROSS METHAN App's ethanol injection PWM controller system.