2-1/2in Coil-Over Kit 51 Series 7in

The QA1 2-1/2in Coil-Over Kit 51 Series 7in is designed for street machines, circle track cars, and road course platforms where precise ride height control and tunable spring rates are essential for performance. This coil-over system replaces traditional bolt-on suspensions with an integrated coil spring and damper assembly, allowing for independent adjustments of static height and dynamic stiffness.

The 7-inch stroke length accommodates moderate suspension travel while keeping a compact design, making it suitable for vehicles with limited space. QA1's 51 Series features monotube or double-tube damper geometry combined with coil springs that allow for independent ride height adjustment through collar positioning, eliminating the need for welding or permanent modifications.

This kit is particularly beneficial for builders focusing on independent front suspension systems, providing the adjustability needed for both daily drivers and competitive setups. The modular design allows for easy spring rate swaps without full damper replacement, ensuring versatility for various applications.