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Single offset inlet; 13 in. L x 9.75 in. W x 4 in. H, 19 in. overall length.
- Flowmaster
- Natural
- Stainless Steel
- Flowmaster Original 40
- Sold Individually
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| 8 Cyl 5.7L |
Base, High Sierra, Sierra Classic, Sierra Grande, Street Coupe |
| 8 Cyl 6.6L |
Base, High Sierra, Sierra Classic, Sierra Grande, Street Coupe |
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DYNOMAX ULTRA FLO WELDED MUFFLERDynomax's Ultra Flo Welded muffler features unique straight-through design for maximum exhaust flow and power, high chromium content T-304 cover and heads, and continuous perf tube design that maximizes sound absorption and minimizes turbulence. It uses continuous roving fiberglass technology that delivers an aggressive, powerful, and deep performance sound.Specifications; Withstands 1500 degrees Fahrenheit temperature.
- Dynomax
- Natural
- Stainless Steel
- Dynomax Ultra Flo Welded
- Direct OE Replacement
- Sold Individually
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| All Engines |
All Submodels |
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Aluminized steel muffler materialFeatures; THRUSH TURBO MUFFLERThrush Turbo muffler features a unique and high flow design with reversible flow chambers for maximum flexibility. It is made of 100 percent aluminum for long life and has time-proven spun-locked heads for leak-free seal.Specifications.
- Thrush
- Natural
- Aluminized Steel
- Thrush Turbo
- Sold Individually
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| 6 Cyl 4.3L |
SLE, SLT, SLS, Envoy, Diamond Edition |
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2 in. inlet diameter; KOOL VUE HIGH PERFORMANCE MUFFLER, STAINLESS STEEL, POLISHED -- 9 in. L x 6 in. W x 3.9 in. H.
- Kool Vue
- Polished
- Stainless Steel
- Direct Fit
- Sold Individually
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| 6 Cyl 4.3L |
SLE, SLT, SLS, Envoy, Diamond Edition |
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5 in. inlet diameter; 24 in. length, 31 in. overall length.
- MBRP
- Natural
- Aluminized Steel
- MBRP Performance
- Universal Product
- Sold Individually
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| 6 Cyl 4.3L |
SLE, SLT, SLS, Envoy, Diamond Edition |
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