Fits 1958-64 Chevrolet Biscayne Straight Through Muffler-Stainless SM11224-JHPR u-pipe 00-inch mandrel-bent aluminized steel inlet

00-inch mandrel-bent aluminized steel inlet pipe flowing into a 70 Series Big Block II™ performance muffler for a deep mellow tone

7 V8 1976 - 1979 Chevrolet K10 400/6

Experience improved power and throttle response

5 V8 1970 - 1980 Oldsmobile Cutlass 350/5

Fits 1958-64 Chevrolet Biscayne Straight Through Muffler-Stainless SM11224-JHPR u-pipe 00-inch mandrel-bent aluminized steel inletStreet Max, Stainless Straight Through Performance Muffler, 4. 0" x 9. 0" x 14. 0" Oval Body, Aggressive to Moderate Tone, 16 Gauge 409 Grade Stainless Steel, Satin Finish, 2. 0" Offset In, 2. 0" Center Out, Reversible, 3 Year Limited Warranty. Features: Straight Through Design (fully reversible) Improved Horsepower and Torque 409 Grade 16 Gauge Stainless Steel Construction High Heat Thermal Mesh Effective Drone Reduction Aggressive Moderate Tone