Electro NPP retrofit kit
Coming Soon! The most revolutionary Bi-mode exhaust retrofit system created.

Sunset Orange Creations  "Electro" NPP muffler retrofit system!  The first 100% electrically operated bi-mode exhaust retrofit system.

With this system you can retrofit GM NPP bi-mode exhaust to any C6 corvette quickly and easily without having to run any vacuum lines at all.

The retrofit system uses electric actuator motors that are attatched to the GM NPP mufflers in place of the vacuum actuators. This gives you the ability to  open and close the butterflies using a wireless keyfob remote or a manual rocker switch. You can open the buttterflies 100% or close them 100% and ANYWHERE IN BETWEEN!

This is the first retrofit system that allows a partial open of the butterflies to give you just a little more volume than closed mode, but not the full volume of full open mode. You can set the position of the butterfliers to whatever you want! No other NPP bi-mode exhaust retrofit system can do that!

This kit will contain: full install instructions in printed form and on a disk in PDF file form,  two electric actuator motors, a wireless receiver and two keyfob remotes, and all hardware and wiring needed to install the system on your GM NPP mufflers. A manual rocker switch will be an available option. 

All that is needed to complete the installation of a fully functioning bi-mode exhaust system to any C6 is a pair of GM NPP mufflers (provided by you), and this new revolutionary Sunset Orange Creations "electro" NPP retrofit kit.

Stay tuned for more info as I will be updating this page with pictures, videos, prices and availability very soon.

Thanks again for your support!