Let it FLOW! If you're moving huge air, only a mandrel-bent straight-through 2.5" exhaust will do. This one doesn't neck down to 55mm like other variants. Done in aluminized steel, the setup features a non-restricted centerpipe with pair of resonators (or single). It's all finished with a stainless steel Borla muffler and tail pipe. Includes clamps and hangers.