If you have a 2005-2007 C6 or 2008-2013 C6 Corvette that didn't come with the NPP exhaust from the factory you can now have that same exhaust setup with "NPP in a Box". Simply purchase this vacuum control system, get NPP mufflers and you are ready to go!
Go from Mild to Wild with the touch of a button. Choose Mild and your flaps will remain closed for a quiet ride. Choose Wild and open those flaps up! Let the world know you drive the best!
Please select option, either LS2 or LS3 and we'll provide the correct system for your car. This setup allows you to start the car in Mild or Wild mode. Comes with a 90 day warranty.
All items will be shipped via Standard Ground Service unless otherwise requested. Many carriers require a physical street address; they will not deliver to a P.O. Box. All freight charges are the customer’s responsibility. Please note that all freight charges quoted are for Standard Ground Service on the price list. We will be happy to quote you charges for other shipping methods. All Items shipped on Friday Next Day Air will be delivered on the following Monday. If you would like Saturday delivery for items shipped on Friday only, please contact us for shipping arrangements. If an item is custom order or on back order, it will ship with the selected shipping service as soon as it is ready. To check if an item is in stock and ready to ship, please call our parts department.
Customers may return new, unused items within 90 days of delivery for a full refund to the original payment method. West Coast Corvette is not responsible for return shipping costs unless it was our error. Please refer to the tables below for return restrictions.
Full refund to original payment method
After 90 Days
10% Restocking fee and store credit
Oversize fees are noted on the product listing. Including but not limited to, wheels, spoilers, splitters, side skirts, any items with initial oversize shipping fees
10% Restocking fee
MGP Calipers, Lloyd mats, Racemesh grills, Speed Lingerie, American Car Craft, Oracle Lighting
Not eligible for return
Used parts, clearance items and parts that have been installed.