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This is the B&B C6 Fusion (complete Multi Mode Exhaust Kit) Quad Round 4" or 4.5" Oval Tips for the Corvette C6 2009+ without the NPP Option. Comes with everything you need (including the Mild to Wild Z06 Exhaust Swtich) to give your Corvette multimode exhaust !
What is bi-modal exhaust?
The Fusion is a bimodal exhaust system, meaning it has two passages, or modes, that the exhaust can travel through the muffler. Each of the mufflers has two outlets, with one side having a butterfly type valve which allows the exhaust flow to be shut off, regulating which side of the muffler the flows exhaust. One side of the muffler is the "quiet" side, and one side is the "loud" side. The "quiet" side is a smaller, muffled and chambered tube, while the "loud" side is 3" tubing straight through.
How loud is it?
Through our development and customer feedback we have shortend the muffler for 2008, making the loud side of the muffler louder, which results in a tone similar to the famous Bullet system. In the closed position the tone would be slightly louder than the standard Route 66 system.
What controls the valves?
The butterfly is controlled by a vacuum valvem, which we built and developed completely in house. On the Z06 and the 2008 C6 with the NPP option, this valve is controlled by the ECU. The valve opens based on RPM and throttle position. The problem is the factory exhaust is very quiet, even with the valve open. Our expertise at Billy Boat is getting the tone right for your Corvette, and they think they have nailed this one. Even in the closed position, the tone is deeper, louder, and more aggressive. Open the valves, the overall volume and tone increases to the point heads will turn when you drive up.
What if I have a standard C6?
This is a complete plug and play kit that is meant to be used on the standard C6 without the factory installed Mulitmode Option. We have used the engine as the vacuum source (it is the same port the factory uses for the NPP) and the installation is simple and straight forward.
Is the system 2 1/2" or 3"?
On the Corvette Z06 and ZR1 the Z06 BB Fusion System exhaust system is 3", while on the C6 it is 2 1/2".
Will they bolt up to my stock H pipe or my stock headers?
Each part of the system will fit to a stock H-pipe or the stock headers. The parts can be mixed and matched (rear exhaust, xpipe, and long tube headers) .
Billy Boat has combined the best of the Bullet exhaust with the best new technology to give you the Fusion System for your Corvette. The muffler tips are double walled, 4" round or 4.5" oval. The entire system comes completely polished and the result is a truly spectacular look and sound that gives this high performance sports car the look and aggressive sound which will have heads turning everywhere you go.
All BB products are precision built in rugged fixtures, completely TIG welded, and are a direct replacement for stock exhaust components and include all hardware and gaskets. No machining, no cutting and no welding means easy installation. We provide the perfect mix of performance, sound and style your Corvette . Each Billy Boat Performance Exhaust system is backed by a lifetime warranty against rust, corrosion or burn through and 2 full years against defects in materials or workmanship.
Tips are available with your choice of polished Stainless Steel tips which are finished to a gorgeous mirror like shine or new Black Satin Ceramic Coated Exhaust tips-for a more unique and aggressive modified appearance.