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The mount maintains the correct engine or transmission position within the chassis to protect cooling fan clearance
The system includes a high-flow muffler that cuts restriction by 50-60% compared to the stock unit while controlling the exhaust note to eliminate drone
They are engineered as part of a complete valvetrain system for reliable performance in street and race applications
Part 81730 is configured for its specific application with attention to fitment requirements
Hypertech 11911 Hypertech Street Runner Power Chips Hedman Hedders The mount maintains the correctThe Hypertech 11911 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. This
