Granatelli 28-0513-CP Features:

Direct OEM replacement with a simple plug and play, wont void your factory warranty. Improves fuel economy, throttle response, and idle characteristics. Increased engine efficiency with improved engine combustion. Gains of up to 12hp have been seen with these coils over stock. Average gain with no other changes is 6 to 8hp on an otherwise stock vehicle. Gains of up to 18hp have been experienced on heavily modified forced induction applications. Rated at 80K Volts, Pro-Series Extreme coil packs offer nearly twice the voltage over the competition.

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART