{"product_id":"walker-exhaust-muffler-18138","title":"WALKER - Exhaust Muffler - 18138","description":"\u003cp\u003e\u003cimg\u003e\u003c\/p\u003e\n\u003ch2 data-start=\"379\" data-end=\"405\"\u003e\u003cstrong data-start=\"382\" data-end=\"405\"\u003eProduct Description\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"407\" data-end=\"811\"\u003eThe Walker SoundFX® \u003cstrong data-start=\"427\" data-end=\"436\"\u003e18138\u003c\/strong\u003e universal muffler is engineered for durability, OE-style sound quality, and versatile installation across a wide range of GM trucks from the mid-1990s through the mid-2000s. Constructed with aluminized steel for corrosion resistance and designed with mechanical joints that withstand thermal expansion, this muffler delivers long-lasting reliability and smooth exhaust tone.\u003c\/p\u003e\n\u003cp data-start=\"813\" data-end=\"1026\"\u003eIts large-capacity oval design with a \u003cstrong data-start=\"851\" data-end=\"905\"\u003e2.75-inch offset inlet and 2.75-inch offset outlet\u003c\/strong\u003e supports high-flow V6 and V8 applications, making it ideal for both stock replacement and custom exhaust configurations.\u003c\/p\u003e\n\u003chr data-start=\"1028\" data-end=\"1031\"\u003e\n\u003ch2 data-start=\"1033\" data-end=\"1052\"\u003e\u003cstrong data-start=\"1036\" data-end=\"1052\"\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-start=\"1054\" data-end=\"1490\"\u003e\n\u003cli data-start=\"1054\" data-end=\"1135\"\u003e\n\u003cp data-start=\"1056\" data-end=\"1135\"\u003e\u003cstrong data-start=\"1056\" data-end=\"1089\"\u003eAluminized steel construction\u003c\/strong\u003e improves corrosion resistance and longevity\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1136\" data-end=\"1193\"\u003e\n\u003cp data-start=\"1138\" data-end=\"1193\"\u003e\u003cstrong data-start=\"1138\" data-end=\"1166\"\u003eInternal drainage system\u003c\/strong\u003e reduces moisture buildup\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1194\" data-end=\"1264\"\u003e\n\u003cp data-start=\"1196\" data-end=\"1264\"\u003e\u003cstrong data-start=\"1196\" data-end=\"1229\"\u003eLouvered tube internal design\u003c\/strong\u003e maintains OE-style sound quality\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1265\" data-end=\"1343\"\u003e\n\u003cp data-start=\"1267\" data-end=\"1343\"\u003e\u003cstrong data-start=\"1267\" data-end=\"1308\"\u003eMechanical joints \u0026amp; spun-locked heads\u003c\/strong\u003e resist warping under heat cycles\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1344\" data-end=\"1428\"\u003e\n\u003cp data-start=\"1346\" data-end=\"1428\"\u003e\u003cstrong data-start=\"1346\" data-end=\"1377\"\u003eUniversal-fit configuration\u003c\/strong\u003e with expandable bushings for flexible adaptation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1429\" data-end=\"1490\"\u003e\n\u003cp data-start=\"1431\" data-end=\"1490\"\u003e\u003cstrong data-start=\"1431\" data-end=\"1452\"\u003eDesigned \u0026amp; tested\u003c\/strong\u003e for dependable acoustic performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1492\" data-end=\"1495\"\u003e\n\u003ch2 data-start=\"1497\" data-end=\"1528\"\u003e\u003cstrong data-start=\"1500\" data-end=\"1528\"\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=\"1530\" data-end=\"2282\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"1530\" data-end=\"1563\"\u003e\n\u003ctr data-start=\"1530\" data-end=\"1563\"\u003e\n\u003cth data-start=\"1530\" data-end=\"1550\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1532\" data-end=\"1549\"\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth data-start=\"1550\" data-end=\"1563\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1552\" data-end=\"1561\"\u003eValue\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"1597\" data-end=\"2282\"\u003e\n\u003ctr data-start=\"1597\" data-end=\"1617\"\u003e\n\u003ctd data-start=\"1597\" data-end=\"1609\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1599\" data-end=\"1608\"\u003eShape\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1609\" data-end=\"1617\"\u003eOval\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1618\" data-end=\"1645\"\u003e\n\u003ctd data-start=\"1618\" data-end=\"1631\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1620\" data-end=\"1630\"\u003eFinish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1631\" data-end=\"1645\"\u003eAluminized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1646\" data-end=\"1682\"\u003e\n\u003ctd data-start=\"1646\" data-end=\"1663\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1648\" data-end=\"1662\"\u003eInlet Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"1663\" data-end=\"1682\" data-col-size=\"sm\"\u003ePipe Connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1683\" data-end=\"1720\"\u003e\n\u003ctd data-start=\"1683\" data-end=\"1701\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1685\" data-end=\"1700\"\u003eOutlet Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1701\" data-end=\"1720\"\u003ePipe Connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1721\" data-end=\"1761\"\u003e\n\u003ctd data-start=\"1721\" data-end=\"1749\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1723\" data-end=\"1748\"\u003eInlet Inside Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1749\" data-end=\"1761\"\u003e2.750 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1762\" data-end=\"1804\"\u003e\n\u003ctd data-start=\"1762\" data-end=\"1792\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1764\" data-end=\"1791\"\u003eOutlet Outside Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1792\" data-end=\"1804\"\u003e2.750 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1805\" data-end=\"1835\"\u003e\n\u003ctd data-start=\"1805\" data-end=\"1823\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1807\" data-end=\"1822\"\u003eBody Height\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1823\" data-end=\"1835\"\u003e7.000 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1836\" data-end=\"1867\"\u003e\n\u003ctd data-start=\"1836\" data-end=\"1854\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1838\" data-end=\"1853\"\u003eBody Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1854\" data-end=\"1867\"\u003e24.000 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1868\" data-end=\"1897\"\u003e\n\u003ctd data-start=\"1868\" data-end=\"1885\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1870\" data-end=\"1884\"\u003eBody Width\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1885\" data-end=\"1897\"\u003e9.000 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1898\" data-end=\"1932\"\u003e\n\u003ctd data-start=\"1898\" data-end=\"1919\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1900\" data-end=\"1918\"\u003eOverall Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1919\" data-end=\"1932\"\u003e29.000 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1933\" data-end=\"1964\"\u003e\n\u003ctd data-start=\"1933\" data-end=\"1954\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1935\" data-end=\"1953\"\u003eInlet Location\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1954\" data-end=\"1964\"\u003eOffset\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1965\" data-end=\"1997\"\u003e\n\u003ctd data-start=\"1965\" data-end=\"1987\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"1967\" data-end=\"1986\"\u003eOutlet Location\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1987\" data-end=\"1997\"\u003eOffset\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1998\" data-end=\"2024\"\u003e\n\u003ctd data-start=\"1998\" data-end=\"2019\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2000\" data-end=\"2018\"\u003eInlet Quantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2019\" data-end=\"2024\"\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2025\" data-end=\"2052\"\u003e\n\u003ctd data-start=\"2025\" data-end=\"2047\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2027\" data-end=\"2046\"\u003eOutlet Quantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2047\" data-end=\"2052\"\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2053\" data-end=\"2081\"\u003e\n\u003ctd data-start=\"2053\" data-end=\"2075\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2055\" data-end=\"2074\"\u003eHanger Included\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2075\" data-end=\"2081\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2082\" data-end=\"2105\"\u003e\n\u003ctd data-start=\"2082\" data-end=\"2099\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2084\" data-end=\"2098\"\u003eReversible\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2099\" data-end=\"2105\"\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2106\" data-end=\"2138\"\u003e\n\u003ctd data-start=\"2106\" data-end=\"2125\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2108\" data-end=\"2124\"\u003eFitment Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2125\" data-end=\"2138\"\u003eUniversal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2139\" data-end=\"2168\"\u003e\n\u003ctd data-start=\"2139\" data-end=\"2159\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2141\" data-end=\"2158\"\u003eBody Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"2159\" data-end=\"2168\" data-col-size=\"sm\"\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2169\" data-end=\"2197\"\u003e\n\u003ctd data-start=\"2169\" data-end=\"2186\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2171\" data-end=\"2185\"\u003eGrade Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2186\" data-end=\"2197\"\u003ePremium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2198\" data-end=\"2250\"\u003e\n\u003ctd data-start=\"2198\" data-end=\"2221\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2200\" data-end=\"2220\"\u003ePart Description\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2221\" data-end=\"2250\"\u003eSoundFX Universal Muffler\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2251\" data-end=\"2282\"\u003e\n\u003ctd data-start=\"2251\" data-end=\"2270\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2253\" data-end=\"2269\"\u003eInlet Offset\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2270\" data-end=\"2282\"\u003e2.625 in\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=\"2284\" data-end=\"2287\"\u003e\n\u003ch2 data-start=\"2289\" data-end=\"2319\"\u003e\u003cstrong data-start=\"2292\" data-end=\"2317\"\u003eVehicle Compatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"2320\" data-end=\"2411\"\u003e(\u003cem data-start=\"2321\" data-end=\"2410\"\u003eUniversal part — below are known applications where this muffler fits or can be adapted\u003c\/em\u003e)\u003c\/p\u003e\n\u003ch3 data-start=\"2413\" data-end=\"2430\"\u003e\u003cstrong data-start=\"2417\" data-end=\"2430\"\u003eChevrolet\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"2431\" data-end=\"2811\"\u003e\n\u003cli data-start=\"2431\" data-end=\"2481\"\u003e\n\u003cp data-start=\"2433\" data-end=\"2481\"\u003e\u003cstrong data-start=\"2433\" data-end=\"2454\"\u003eC1500 (1994–1999)\u003c\/strong\u003e — 4.3L, 5.0L, 5.7L, 6.5L\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2482\" data-end=\"2532\"\u003e\n\u003cp data-start=\"2484\" data-end=\"2532\"\u003e\u003cstrong data-start=\"2484\" data-end=\"2505\"\u003eC2500 (1993–2000)\u003c\/strong\u003e — 4.3L, 5.0L, 5.7L, 6.5L\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2533\" data-end=\"2565\"\u003e\n\u003cp data-start=\"2535\" data-end=\"2565\"\u003e\u003cstrong data-start=\"2535\" data-end=\"2556\"\u003eC3500 (1993–2000)\u003c\/strong\u003e — 6.5L\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2566\" data-end=\"2616\"\u003e\n\u003cp data-start=\"2568\" data-end=\"2616\"\u003e\u003cstrong data-start=\"2568\" data-end=\"2589\"\u003eK1500 (1994–1999)\u003c\/strong\u003e — 4.3L, 5.0L, 5.7L, 6.5L\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2617\" data-end=\"2667\"\u003e\n\u003cp data-start=\"2619\" data-end=\"2667\"\u003e\u003cstrong data-start=\"2619\" data-end=\"2640\"\u003eK2500 (1993–2000)\u003c\/strong\u003e — 4.3L, 5.0L, 5.7L, 6.5L\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2668\" data-end=\"2700\"\u003e\n\u003cp data-start=\"2670\" data-end=\"2700\"\u003e\u003cstrong data-start=\"2670\" data-end=\"2691\"\u003eK3500 (1993–2000)\u003c\/strong\u003e — 6.5L\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2701\" data-end=\"2754\"\u003e\n\u003cp data-start=\"2703\" data-end=\"2754\"\u003e\u003cstrong data-start=\"2703\" data-end=\"2733\"\u003eSilverado 1500 (1999–2006)\u003c\/strong\u003e — 4.3L, 4.8L, 5.3L\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2755\" data-end=\"2811\"\u003e\n\u003cp data-start=\"2757\" data-end=\"2811\"\u003e\u003cstrong data-start=\"2757\" data-end=\"2790\"\u003eSilverado 1500 Classic (2007)\u003c\/strong\u003e — 4.3L, 4.8L, 5.3L\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"2813\" data-end=\"2824\"\u003e\u003cstrong data-start=\"2817\" data-end=\"2824\"\u003eGMC\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"2825\" data-end=\"3199\"\u003e\n\u003cli data-start=\"2825\" data-end=\"2875\"\u003e\n\u003cp data-start=\"2827\" data-end=\"2875\"\u003e\u003cstrong data-start=\"2827\" data-end=\"2848\"\u003eC1500 (1994–1999)\u003c\/strong\u003e — 4.3L, 5.0L, 5.7L, 6.5L\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2876\" data-end=\"2926\"\u003e\n\u003cp data-start=\"2878\" data-end=\"2926\"\u003e\u003cstrong data-start=\"2878\" data-end=\"2899\"\u003eC2500 (1993–2000)\u003c\/strong\u003e — 4.3L, 5.0L, 5.7L, 6.5L\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2927\" data-end=\"2959\"\u003e\n\u003cp data-start=\"2929\" data-end=\"2959\"\u003e\u003cstrong data-start=\"2929\" data-end=\"2950\"\u003eC3500 (1993–2000)\u003c\/strong\u003e — 6.5L\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2960\" data-end=\"3010\"\u003e\n\u003cp data-start=\"2962\" data-end=\"3010\"\u003e\u003cstrong data-start=\"2962\" data-end=\"2983\"\u003eK1500 (1994–1999)\u003c\/strong\u003e — 4.3L, 5.0L, 5.7L, 6.5L\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3011\" data-end=\"3061\"\u003e\n\u003cp data-start=\"3013\" data-end=\"3061\"\u003e\u003cstrong data-start=\"3013\" data-end=\"3034\"\u003eK2500 (1993–2000)\u003c\/strong\u003e — 4.3L, 5.0L, 5.7L, 6.5L\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3062\" data-end=\"3094\"\u003e\n\u003cp data-start=\"3064\" data-end=\"3094\"\u003e\u003cstrong data-start=\"3064\" data-end=\"3085\"\u003eK3500 (1993–2000)\u003c\/strong\u003e — 6.5L\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3095\" data-end=\"3145\"\u003e\n\u003cp data-start=\"3097\" data-end=\"3145\"\u003e\u003cstrong data-start=\"3097\" data-end=\"3124\"\u003eSierra 1500 (1999–2006)\u003c\/strong\u003e — 4.3L, 4.8L, 5.3L\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3146\" data-end=\"3199\"\u003e\n\u003cp data-start=\"3148\" data-end=\"3199\"\u003e\u003cstrong data-start=\"3148\" data-end=\"3178\"\u003eSierra 1500 Classic (2007)\u003c\/strong\u003e — 4.3L, 4.8L, 5.3L\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3201\" data-end=\"3204\"\u003e\n\u003ch2 data-start=\"3206\" data-end=\"3233\"\u003e\u003cstrong data-start=\"3209\" data-end=\"3233\"\u003eInstallation \u0026amp; Notes\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-start=\"3235\" data-end=\"3856\"\u003e\n\u003cli data-start=\"3235\" data-end=\"3321\"\u003e\n\u003cp data-start=\"3237\" data-end=\"3321\"\u003e\u003cstrong data-start=\"3237\" data-end=\"3258\"\u003eUniversal muffler\u003c\/strong\u003e — requires cutting, fabrication, and welding for correct fit\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3322\" data-end=\"3412\"\u003e\n\u003cp data-start=\"3324\" data-end=\"3412\"\u003eCheck existing exhaust tube diameter for compatibility with the \u003cstrong data-start=\"3388\" data-end=\"3410\"\u003e2.75\" inlet\/outlet\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3413\" data-end=\"3495\"\u003e\n\u003cp data-start=\"3415\" data-end=\"3495\"\u003eHangers \u003cstrong data-start=\"3423\" data-end=\"3439\"\u003enot included\u003c\/strong\u003e — installer must reuse or fabricate mounting supports\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3496\" data-end=\"3557\"\u003e\n\u003cp data-start=\"3498\" data-end=\"3557\"\u003eMaintain proper clearances from heat-sensitive components\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3558\" data-end=\"3633\"\u003e\n\u003cp data-start=\"3560\" data-end=\"3633\"\u003eConfirm flow direction based on \u003cstrong data-start=\"3592\" data-end=\"3631\"\u003eoffset inlet and outlet orientation\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3634\" data-end=\"3710\"\u003e\n\u003cp data-start=\"3636\" data-end=\"3710\"\u003eRecommended for custom systems or replacement of stock GM truck mufflers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3711\" data-end=\"3788\"\u003e\n\u003cp data-start=\"3713\" data-end=\"3788\"\u003eProfessional installation is strongly recommended due to universal design\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3789\" data-end=\"3856\"\u003e\n\u003cp data-start=\"3791\" data-end=\"3856\"\u003eMay require reducers or adapters depending on factory pipe size\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WALKER","offers":[{"title":"Default Title","offer_id":45912331976903,"sku":"WAL18138","price":70.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/2277\/5751\/files\/Screenshot2025-12-02104921.png?v=1764701298","url":"https:\/\/mainstreeteshop.com\/products\/walker-exhaust-muffler-18138","provider":"MAIN STREET ESHOP","version":"1.0","type":"link"}