Hypertech 121351 Hypertech Street Runner Power Chips ARP Pro Series Cylinder Head Bolt Kits KYB AGX puts damping control

KYB AGX puts damping control in your hands

Switching to these premium valves reduces valvetrain weight

Product 23074 is verified for correct specifications and dimensional accuracy before shipment

ARP timing cover bolt kits provide reusable fasteners that maintain clamp load through thermal cycles

This Dart Severe-Duty Stainless Steel Valves is manufactured to meet the demands of street and competition use with attention to the specific requirements of the intended application

Hypertech 121351 Hypertech Street Runner Power Chips ARP Pro Series Cylinder Head Bolt Kits KYB AGX puts damping controlThe Hypertech 121351 Hypertech Street Runner Power Chips from Hypertech is a direct ECU reprogramming solution that replaces your vehicle's factory calibration EPROM with an optimized performance tune. Designed for OBD I and early OBD II gasoline vehicles, this performance chip rewrites fuel and spark tables for measurable horsepower and torque gains. It's a straightforward hardware upgrade that requires no laptop, no software, and no dyno tuning.