Get maximum flexibility from your modular SLP cat-back system with our new PowerFlo™ low-restriction mufflers. Designed to provide an optimal balance of flow and noise attenuation, they employ a "straight-through" configuration that significantly outperforms traditional chambered and turbo-type designs. All PowerFlo™ mufflers are constructed from hand-polished stainless steel and embossed with the classic SLP logo. NOTE: Sold in pairs. May also be used in the fabrication of custom exhaust systems (see measurements below). Does not fit F-Body or IRS Cobra system. MEASUREMENTS: 2.5" ID/OD 4.5" body diameter 18-3/16" overall length