Please note that installation instructions is NOT included because most of the steps can be found either online in forums or Factory service manual. The hard part is to remove the subframe and prepping it, so that the solid bushings can be "pressed" into place. Users may also consider freezing the solid bushings and pound them into place with a large hammer & wood blocks (to prevent damage to subframe).
But you will gain a lot with this upgrade, these will improve your roll center, anti-squat characteristic, and likely eliminate wheel hop altogether. StreetRays solid subframe bushing kit also includes slide-in shim system that allows you to quickly raise or lower the subframe to fine-tune the roll center/anti-squat behavior to your preference.
Raising the subframe will compensate roll center for a lowered car at the expense of increasing anti-squat. Lowering the subframe will decrease anti-squat at the expense of roll center. Having the suspension arms at a proper angle in relation to the ride height is very important in the suspension dynamics during wheel travel. Important NOTE: This is for competition uses only and thus, these bushings will have a lot more NVH (Noise Vibrations and Harshness) transferred into cockpit / driver seat.