Review on Enhanced Performance: High Performance 8-Pack Straight Boot Ignition Coils for Ford F-150, Lincoln, and Mercury V8 V10 - 15% More Energy - DG511 C1541 FD508-Upgrade (RED) by Tyler Suarez

Installed to replace my boost coils which I installed 5 years ago. Since this brand has a lifetime guarantee, I decided to take a chance. That's just over 1/4 the cost of Accel coils and they can more than double the performance. Unfortunately, two retaining straps broke off during transport and assembly. Shouldn't cause any problems, but I'll keep an eye on them. * After a 17-mile ride, shifting and acceleration improved significantly. Throttle response is almost instantaneous. Less revs on small inclines and the car creeps in low rooms. (Idling Exhaust Noise Reduction) The first drive showed a little more confidence in my car's durability. Now let's look at how long it takes to reduce the efficiency or impact.