Corvette Exhaust Systems from Billy Boat. Chances are that if you found this page, you already know what you are looking for. Billy Boat Exhaust Systems have been around for more than 20 years, and in that time, they have become a Corvette staple. Each B&B Corvette Exhaust is mandrel bent and hand fabricated, using only the best quality Stainless Steel. Choose your poison, Loud to quiet, you will find that distinct classic muscle car sound you are looking for in the Billy Boat Corvette Exhaust line up. If you are looking for no drone, checkout the PRT, classic Corvette Sound, look at the bullets, crazy loud, look at the straight pipes. No matter which you select, they all have that legendary deep muscle car B&B Corvette Sound.