4" Sidetube Slip-In Reverse Flow Muffler S2000 Seams are flat sewn and

Seams are flat sewn and strategically placed to avoid pressure points and promote comfort

Oversize YKK Brass Zipper and Hook-and-Loop Closure

Part # 918522

Single tool adjustments with bottom locking hardware

4" Sidetube Slip-In Reverse Flow Muffler S2000 Seams are flat sewn andFor 4" sidetube sound control, Hooker builds long lasting slip in mufflers. These mufflers are easily removed for racing purposes. This all metal reverse flow style muffler is for small block applications and is quieter than our glass pack style mufflers. Hooker mufflers produce a high level of sound control without restricting engine efficiency. Sold in pairs. Features: Fits 4" Side Tube systems Small Block Reverse Flow Design Easily Removed For