Suspension modifications are minor, consisting only of H&R progressive-rate springs, and Edelbrock IAS gas-charged shock absorbers. These springs lower the Jeep about 2 inches overall, so a modicum of ground clearance is sacrificed while the center of gravity drops a bit for better on-road handling.
Performance was markedly improved. The engine exhibited only one minor bad habit, a stumble at redline as the rev limiter cut in before the 1-2 shift. We didnit notice this condition when shifting just prior to redline or at anything less than wide-open throttle, so itis not likely to be a problem by any means. Be advised that use of the JET module means premium fuel is now required. The suspension mods yield less body roll and a more controlled ride; we suspect further improvements could be gained with high-quality rolling stock.
Retail cost for all the engine and suspension modifications is approximately $2150 plus labor, and itis reasonable to expect that this combination of equipment would have similar effects on 5.2-liter-powered Dodges, as well.