{"product_id":"walker-exhaust-muffler-18458","title":"WALKER - Exhaust Muffler - 18458","description":"\u003ch2 data-start=\"390\" data-end=\"416\"\u003e\u003cstrong data-start=\"393\" data-end=\"416\"\u003eProduct Description\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"418\" data-end=\"846\"\u003eThe Walker SoundFX® \u003cstrong data-start=\"438\" data-end=\"447\"\u003e18458\u003c\/strong\u003e direct-fit muffler is engineered for dependable service life, excellent acoustic control, and easy installation for select GM 3.8L V6 applications. Constructed from 100% aluminized steel, this muffler resists corrosion and provides increased durability versus standard low-carbon steel. The internal louvered tube design delivers a factory-style sound profile while maintaining smooth exhaust flow.\u003c\/p\u003e\n\u003cp data-start=\"848\" data-end=\"968\"\u003eBuilt with OE-style routing and connection points, this muffler installs easily without the need for custom fabrication.\u003c\/p\u003e\n\u003chr data-start=\"970\" data-end=\"973\"\u003e\n\u003ch2 data-start=\"975\" data-end=\"994\"\u003e\u003cstrong data-start=\"978\" data-end=\"994\"\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-start=\"996\" data-end=\"1431\"\u003e\n\u003cli data-start=\"996\" data-end=\"1066\"\u003e\n\u003cp data-start=\"998\" data-end=\"1066\"\u003e\u003cstrong data-start=\"998\" data-end=\"1038\"\u003eCorrosion-Resistant Aluminized Steel\u003c\/strong\u003e for long-term performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1067\" data-end=\"1124\"\u003e\n\u003cp data-start=\"1069\" data-end=\"1124\"\u003e\u003cstrong data-start=\"1069\" data-end=\"1097\"\u003eInternal Drainage System\u003c\/strong\u003e reduces moisture buildup\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1125\" data-end=\"1186\"\u003e\n\u003cp data-start=\"1127\" data-end=\"1186\"\u003e\u003cstrong data-start=\"1127\" data-end=\"1156\"\u003eDurable Mechanical Joints\u003c\/strong\u003e withstand thermal expansion\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1187\" data-end=\"1255\"\u003e\n\u003cp data-start=\"1189\" data-end=\"1255\"\u003e\u003cstrong data-start=\"1189\" data-end=\"1216\"\u003eOE-Style Louvered Tubes\u003c\/strong\u003e ensure factory-correct sound quality\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1256\" data-end=\"1312\"\u003e\n\u003cp data-start=\"1258\" data-end=\"1312\"\u003e\u003cstrong data-start=\"1258\" data-end=\"1288\"\u003eDirect-Fit, Bolt-On Design\u003c\/strong\u003e — no welding required\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1313\" data-end=\"1373\"\u003e\n\u003cp data-start=\"1315\" data-end=\"1373\"\u003e\u003cstrong data-start=\"1315\" data-end=\"1352\"\u003eSpun-Locked Heads \u0026amp; OE Spot Welds\u003c\/strong\u003e increase stability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1374\" data-end=\"1431\"\u003e\n\u003cp data-start=\"1376\" data-end=\"1431\"\u003e\u003cstrong data-start=\"1376\" data-end=\"1399\"\u003eEngineered \u0026amp; Tested\u003c\/strong\u003e for optimal longevity and fit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1433\" data-end=\"1436\"\u003e\n\u003ch2 data-start=\"1438\" data-end=\"1469\"\u003e\u003cstrong data-start=\"1441\" data-end=\"1469\"\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cdiv class=\"_tableContainer_1rjym_1\"\u003e\n\u003cdiv class=\"group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"1471\" data-end=\"2132\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"1471\" data-end=\"1504\"\u003e\n\u003ctr data-start=\"1471\" data-end=\"1504\"\u003e\n\u003cth data-start=\"1471\" data-end=\"1491\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1473\" data-end=\"1490\"\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth data-start=\"1491\" data-end=\"1504\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1493\" data-end=\"1502\"\u003eValue\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"1538\" data-end=\"2132\"\u003e\n\u003ctr data-start=\"1538\" data-end=\"1558\"\u003e\n\u003ctd data-start=\"1538\" data-end=\"1550\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1540\" data-end=\"1549\"\u003eShape\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1550\" data-end=\"1558\"\u003eOval\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1559\" data-end=\"1586\"\u003e\n\u003ctd data-start=\"1559\" data-end=\"1572\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1561\" data-end=\"1571\"\u003eFinish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1572\" data-end=\"1586\"\u003eAluminized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1587\" data-end=\"1623\"\u003e\n\u003ctd data-start=\"1587\" data-end=\"1604\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1589\" data-end=\"1603\"\u003eInlet Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"1604\" data-end=\"1623\" data-col-size=\"sm\"\u003ePipe Connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1624\" data-end=\"1661\"\u003e\n\u003ctd data-start=\"1624\" data-end=\"1642\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1626\" data-end=\"1641\"\u003eOutlet Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1642\" data-end=\"1661\"\u003ePipe Connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1662\" data-end=\"1702\"\u003e\n\u003ctd data-start=\"1662\" data-end=\"1690\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1664\" data-end=\"1689\"\u003eInlet Inside Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1690\" data-end=\"1702\"\u003e2.250 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1703\" data-end=\"1744\"\u003e\n\u003ctd data-start=\"1703\" data-end=\"1732\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1705\" data-end=\"1731\"\u003eOutlet Inside Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1732\" data-end=\"1744\"\u003e2.000 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1745\" data-end=\"1775\"\u003e\n\u003ctd data-start=\"1745\" data-end=\"1763\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1747\" data-end=\"1762\"\u003eBody Height\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1763\" data-end=\"1775\"\u003e5.500 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1776\" data-end=\"1807\"\u003e\n\u003ctd data-start=\"1776\" data-end=\"1794\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1778\" data-end=\"1793\"\u003eBody Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1794\" data-end=\"1807\"\u003e23.000 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1808\" data-end=\"1838\"\u003e\n\u003ctd data-start=\"1808\" data-end=\"1825\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1810\" data-end=\"1824\"\u003eBody Width\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"1825\" data-end=\"1838\" data-col-size=\"sm\"\u003e11.000 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1839\" data-end=\"1873\"\u003e\n\u003ctd data-start=\"1839\" data-end=\"1860\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1841\" data-end=\"1859\"\u003eOverall Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1860\" data-end=\"1873\"\u003e26.500 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1874\" data-end=\"1905\"\u003e\n\u003ctd data-start=\"1874\" data-end=\"1895\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1876\" data-end=\"1894\"\u003eInlet Location\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1895\" data-end=\"1905\"\u003eCenter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1906\" data-end=\"1938\"\u003e\n\u003ctd data-start=\"1906\" data-end=\"1928\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1908\" data-end=\"1927\"\u003eOutlet Location\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1928\" data-end=\"1938\"\u003eOffset\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1939\" data-end=\"1965\"\u003e\n\u003ctd data-start=\"1939\" data-end=\"1960\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1941\" data-end=\"1959\"\u003eInlet Quantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1960\" data-end=\"1965\"\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1966\" data-end=\"1993\"\u003e\n\u003ctd data-start=\"1966\" data-end=\"1988\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1968\" data-end=\"1987\"\u003eOutlet Quantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1988\" data-end=\"1993\"\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1994\" data-end=\"2022\"\u003e\n\u003ctd data-start=\"1994\" data-end=\"2016\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1996\" data-end=\"2015\"\u003eHanger Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2016\" data-end=\"2022\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2023\" data-end=\"2052\"\u003e\n\u003ctd data-start=\"2023\" data-end=\"2043\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2025\" data-end=\"2042\"\u003eBody Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2043\" data-end=\"2052\"\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2053\" data-end=\"2076\"\u003e\n\u003ctd data-start=\"2053\" data-end=\"2070\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2055\" data-end=\"2069\"\u003eReversible\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"2070\" data-end=\"2076\" data-col-size=\"sm\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2077\" data-end=\"2103\"\u003e\n\u003ctd data-start=\"2077\" data-end=\"2091\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2079\" data-end=\"2090\"\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2091\" data-end=\"2103\"\u003eSpecific\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2104\" data-end=\"2132\"\u003e\n\u003ctd data-start=\"2104\" data-end=\"2121\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2106\" data-end=\"2120\"\u003eGrade Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2121\" data-end=\"2132\"\u003ePremium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr data-start=\"2134\" data-end=\"2137\"\u003e\n\u003ch2 data-start=\"2139\" data-end=\"2167\"\u003e\u003cstrong data-start=\"2142\" data-end=\"2167\"\u003eVehicle Compatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003ch3 data-start=\"2169\" data-end=\"2182\"\u003e\u003cstrong data-start=\"2173\" data-end=\"2182\"\u003eBuick\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"2183\" data-end=\"2234\"\u003e\n\u003cli data-start=\"2183\" data-end=\"2234\"\u003e\n\u003cp data-start=\"2185\" data-end=\"2234\"\u003e\u003cstrong data-start=\"2185\" data-end=\"2208\"\u003eLeSabre (1994–1999)\u003c\/strong\u003e — 3.8L V6 3800cc\/231cid\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"2236\" data-end=\"2254\"\u003e\u003cstrong data-start=\"2240\" data-end=\"2254\"\u003eOldsmobile\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"2255\" data-end=\"2349\"\u003e\n\u003cli data-start=\"2255\" data-end=\"2301\"\u003e\n\u003cp data-start=\"2257\" data-end=\"2301\"\u003e\u003cstrong data-start=\"2257\" data-end=\"2275\"\u003e88 (1994–1999)\u003c\/strong\u003e — 3.8L V6 3800cc\/231cid\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2302\" data-end=\"2349\"\u003e\n\u003cp data-start=\"2304\" data-end=\"2349\"\u003e\u003cstrong data-start=\"2304\" data-end=\"2323\"\u003eLSS (1996–1999)\u003c\/strong\u003e — 3.8L V6 3800cc\/231cid\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"2351\" data-end=\"2366\"\u003e\u003cstrong data-start=\"2355\" data-end=\"2366\"\u003ePontiac\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"2367\" data-end=\"2421\"\u003e\n\u003cli data-start=\"2367\" data-end=\"2421\"\u003e\n\u003cp data-start=\"2369\" data-end=\"2421\"\u003e\u003cstrong data-start=\"2369\" data-end=\"2395\"\u003eBonneville (1994–1999)\u003c\/strong\u003e — 3.8L V6 3800cc\/231cid\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2423\" data-end=\"2426\"\u003e\n\u003ch2 data-start=\"2428\" data-end=\"2455\"\u003e\u003cstrong data-start=\"2431\" data-end=\"2455\"\u003eInstallation \u0026amp; Notes\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-start=\"2457\" data-end=\"3045\"\u003e\n\u003cli data-start=\"2457\" data-end=\"2510\"\u003e\n\u003cp data-start=\"2459\" data-end=\"2510\"\u003eDesigned as a \u003cstrong data-start=\"2473\" data-end=\"2496\"\u003edirect-fit, bolt-on\u003c\/strong\u003e replacement\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2511\" data-end=\"2574\"\u003e\n\u003cp data-start=\"2513\" data-end=\"2574\"\u003eNo welding typically required; uses OE-style pipe alignment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2575\" data-end=\"2660\"\u003e\n\u003cp data-start=\"2577\" data-end=\"2660\"\u003e\u003cstrong data-start=\"2577\" data-end=\"2601\"\u003eHangers not included\u003c\/strong\u003e — inspect and reuse factory hangers or replace as needed\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2661\" data-end=\"2730\"\u003e\n\u003cp data-start=\"2663\" data-end=\"2730\"\u003eEnsure proper orientation: \u003cstrong data-start=\"2690\" data-end=\"2706\"\u003ecenter inlet\u003c\/strong\u003e and \u003cstrong data-start=\"2711\" data-end=\"2728\"\u003eoffset outlet\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2731\" data-end=\"2822\"\u003e\n\u003cp data-start=\"2733\" data-end=\"2822\"\u003eCheck exhaust system components (clamps, flange, tailpipe) for wear before installation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2823\" data-end=\"2888\"\u003e\n\u003cp data-start=\"2825\" data-end=\"2888\"\u003eNot reversible — install with outlet offset correctly aligned\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2889\" data-end=\"2965\"\u003e\n\u003cp data-start=\"2891\" data-end=\"2965\"\u003eRecommended to soak old hardware with penetrating oil for easier removal\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2966\" data-end=\"3045\"\u003e\n\u003cp data-start=\"2968\" data-end=\"3045\"\u003eAlways verify compatibility with engine size and model year before purchase\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WALKER","offers":[{"title":"Default Title","offer_id":45912308220103,"sku":"WAL18458","price":89.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/2277\/5751\/files\/Screenshot2025-12-02103934.png?v=1764700710","url":"https:\/\/mainstreeteshop.com\/products\/walker-exhaust-muffler-18458","provider":"MAIN STREET ESHOP","version":"1.0","type":"link"}