We use our experience in bi-modal muffler design to further enhance the factory system. Billy Boat Performance C7 Corvette Stingray Fusion Bi-Modal Exhaust System provides a deeper, richer and more voluminous sound than the OEM NPP system. Mufflers incorporate two passages through which exhaust can travel. A butterfly valve, built into the mufflers, regulates which passage is used.
Passage One is a muffled and chambered tube incorporating Billy Boat's exclusive PRT (Purge Resonance Technology) to eliminate drone at cruising speeds, while delivering deep and smooth American V8 muscle car sound.
Passage two is a straight through tube that increases the sound volume to adrenaline pumping levels, as well as increases horsepower and torque.
• C7 Corvette Fusion Bi-Modal Exhaust System can be simply incorporated with the OEM C7 NPP system controls • Proprietary 3" butterfly valve system available (OEM uses 2.5" valves) • 3" pipe diameter • Manufactured to precise standards using T-304 stainless steel and TIG welding techniques • 4" round, 4.5" oval double walled tips or Speedway tips • Limited Lifetime Warranty against rust, corrosion or burn through • Made in the USA
Very difficult installation, should be installed by a professional. The rear fascia needs to be removed for this installation, approximate time is 4hrs.
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.