These high voltage coil packs will supply a stronger spark which will allow you to run a larger gap that will improve fuel economy, drivability, and HP capability. Not an earth shattering difference but a small gain. Definitely well worth the upgrade if you're replacing your coils.
Torque spec: 25 inch pounds
No returns on electrical items.
Sold in a set of 3.
These fit GM 3800 W-Body and H-Body cars including L67, L36, L32, and L26.