These baffles were designed for vehicles such as Cobra's and Corvette's with side pipes. These will fit into a 4" OD Cobra side pipes, and Hooker 4" OD side pipes. These mufflers flow at an extremely high flow rate. The core is up to a 3" core, which is the largest side pipe core available anywhere. The mufflers are packed with a high-temp performance muffler packing (see second photo). Fits up to a 4" OD side pipe system. Easily removed for racing. Unlike other mufflers, these are re-packable. Extremely light weight compared to other side pipe mufflers. For Cobra Side Pipes 22" Long For Corvette Side Pipes 30" Long Other sizes available. Custom built to order. Approximately 14 days. Call for details. 972-937-7735 Ken ALL SIZES SOLD AS A PAIR.

**Note that the item you receive may look different depending on size variations, as they are made to fit different diameter pipes, with a variety of core sizes. **