{"product_id":"walker-exhaust-resonator-21665","title":"WALKER - Exhaust Resonator - 21665","description":"\u003ch2 data-start=\"305\" data-end=\"327\"\u003eProduct Description\u003c\/h2\u003e\n\u003cp data-start=\"329\" data-end=\"682\"\u003eThe WALKER 21665 Exhaust Resonator is engineered to restore factory-style exhaust tone, flow characteristics, and performance for select Chevrolet, Pontiac, and Saturn midsize sedans. Designed with OE-style acoustic tuning, this resonator uses louvered internal tubes (where applicable) to reduce radiated noise and deliver a smooth, quiet exhaust note.\u003c\/p\u003e\n\u003cp data-start=\"684\" data-end=\"1007\"\u003eConstructed from \u003cstrong data-start=\"701\" data-end=\"729\"\u003edurable aluminized steel\u003c\/strong\u003e, the 21665 provides effective corrosion resistance and long-lasting service life. Thick OE-style flanges and brackets improve structural integrity, while the resonator’s customizable pipe-connection design may require light fabrication or welding depending on the installation.\u003c\/p\u003e\n\u003cp data-start=\"1009\" data-end=\"1190\"\u003eBuilt to meet or exceed original equipment exhaust sound and performance, this resonator is a reliable replacement for restoring smooth exhaust tone on GM Epsilon-platform vehicles.\u003c\/p\u003e\n\u003chr data-start=\"1192\" data-end=\"1195\"\u003e\n\u003ch2 data-start=\"1197\" data-end=\"1212\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-start=\"1214\" data-end=\"1654\"\u003e\n\u003cli data-start=\"1214\" data-end=\"1285\"\u003e\n\u003cp data-start=\"1216\" data-end=\"1285\"\u003e\u003cstrong data-start=\"1216\" data-end=\"1249\"\u003eAluminized Steel Construction\u003c\/strong\u003e for enhanced corrosion resistance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1286\" data-end=\"1362\"\u003e\n\u003cp data-start=\"1288\" data-end=\"1362\"\u003e\u003cstrong data-start=\"1288\" data-end=\"1315\"\u003eOE-Style Louvered Tubes\u003c\/strong\u003e deliver factory-correct acoustic performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1363\" data-end=\"1441\"\u003e\n\u003cp data-start=\"1365\" data-end=\"1441\"\u003e\u003cstrong data-start=\"1365\" data-end=\"1402\"\u003eThick OE-Style Flanges \u0026amp; Hardware\u003c\/strong\u003e for durability and long service life\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1442\" data-end=\"1519\"\u003e\n\u003cp data-start=\"1444\" data-end=\"1519\"\u003e\u003cstrong data-start=\"1444\" data-end=\"1491\"\u003eDesigned for Excellent Flow Characteristics\u003c\/strong\u003e and reduced exhaust noise\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1520\" data-end=\"1595\"\u003e\n\u003cp data-start=\"1522\" data-end=\"1595\"\u003e\u003cstrong data-start=\"1522\" data-end=\"1542\"\u003eFlexible Fitment\u003c\/strong\u003e—pipe connection may require fabrication or welding\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1596\" data-end=\"1654\"\u003e\n\u003cp data-start=\"1598\" data-end=\"1654\"\u003e\u003cstrong data-start=\"1598\" data-end=\"1652\"\u003eEngineered to Match OE Exhaust Performance \u0026amp; Sound\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1656\" data-end=\"1659\"\u003e\n\u003ch2 data-start=\"1661\" data-end=\"1688\"\u003eTechnical Specifications\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=\"1690\" data-end=\"2328\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"1690\" data-end=\"1716\"\u003e\n\u003ctr data-start=\"1690\" data-end=\"1716\"\u003e\n\u003cth data-start=\"1690\" data-end=\"1706\" data-col-size=\"sm\"\u003eSpecification\u003c\/th\u003e\n\u003cth data-start=\"1706\" data-end=\"1716\" data-col-size=\"sm\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"1743\" data-end=\"2328\"\u003e\n\u003ctr data-start=\"1743\" data-end=\"1760\"\u003e\n\u003ctd data-start=\"1743\" data-end=\"1751\" data-col-size=\"sm\"\u003eShape\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1751\" data-end=\"1760\"\u003eRound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1761\" data-end=\"1784\"\u003e\n\u003ctd data-start=\"1761\" data-end=\"1770\" data-col-size=\"sm\"\u003eFinish\u003c\/td\u003e\n\u003ctd data-start=\"1770\" data-end=\"1784\" data-col-size=\"sm\"\u003eAluminized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1785\" data-end=\"1810\"\u003e\n\u003ctd data-start=\"1785\" data-end=\"1801\" data-col-size=\"sm\"\u003eBody Material\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1801\" data-end=\"1810\"\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1811\" data-end=\"1835\"\u003e\n\u003ctd data-start=\"1811\" data-end=\"1826\" data-col-size=\"sm\"\u003eBody 1 Shape\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1826\" data-end=\"1835\"\u003eRound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1836\" data-end=\"1863\"\u003e\n\u003ctd data-start=\"1836\" data-end=\"1854\" data-col-size=\"sm\"\u003eResonator Shape\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1854\" data-end=\"1863\"\u003eRound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1864\" data-end=\"1896\"\u003e\n\u003ctd data-start=\"1864\" data-end=\"1877\" data-col-size=\"sm\"\u003eInlet Type\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1877\" data-end=\"1896\"\u003ePipe Connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1897\" data-end=\"1930\"\u003e\n\u003ctd data-start=\"1897\" data-end=\"1911\" data-col-size=\"sm\"\u003eOutlet Type\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1911\" data-end=\"1930\"\u003ePipe Connection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1931\" data-end=\"1967\"\u003e\n\u003ctd data-start=\"1931\" data-end=\"1955\" data-col-size=\"sm\"\u003eInlet Inside Diameter\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1955\" data-end=\"1967\"\u003e2.500 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"1968\" data-end=\"2005\"\u003e\n\u003ctd data-start=\"1968\" data-end=\"1993\" data-col-size=\"sm\"\u003eOutlet Inside Diameter\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"1993\" data-end=\"2005\"\u003e2.000 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2006\" data-end=\"2038\"\u003e\n\u003ctd data-start=\"2006\" data-end=\"2028\" data-col-size=\"sm\"\u003eInlet Configuration\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2028\" data-end=\"2038\"\u003eCenter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2039\" data-end=\"2072\"\u003e\n\u003ctd data-start=\"2039\" data-end=\"2062\" data-col-size=\"sm\"\u003eOutlet Configuration\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2062\" data-end=\"2072\"\u003eCenter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2073\" data-end=\"2095\"\u003e\n\u003ctd data-start=\"2073\" data-end=\"2090\" data-col-size=\"sm\"\u003eInlet Quantity\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2090\" data-end=\"2095\"\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2096\" data-end=\"2119\"\u003e\n\u003ctd data-start=\"2096\" data-end=\"2114\" data-col-size=\"sm\"\u003eOutlet Quantity\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2114\" data-end=\"2119\"\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2120\" data-end=\"2146\"\u003e\n\u003ctd data-start=\"2120\" data-end=\"2134\" data-col-size=\"sm\"\u003eBody Height\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2134\" data-end=\"2146\"\u003e4.000 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2147\" data-end=\"2174\"\u003e\n\u003ctd data-start=\"2147\" data-end=\"2161\" data-col-size=\"sm\"\u003eBody Length\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2161\" data-end=\"2174\"\u003e27.000 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2175\" data-end=\"2200\"\u003e\n\u003ctd data-start=\"2175\" data-end=\"2188\" data-col-size=\"sm\"\u003eBody Width\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2188\" data-end=\"2200\"\u003e4.000 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2201\" data-end=\"2262\"\u003e\n\u003ctd data-start=\"2201\" data-end=\"2218\" data-col-size=\"sm\"\u003eOverall Length\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2218\" data-end=\"2262\"\u003e\u003cem data-start=\"2220\" data-end=\"2260\"\u003eListed as 2.000 in (likely data error)\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2263\" data-end=\"2303\"\u003e\n\u003ctd data-start=\"2263\" data-end=\"2291\" data-col-size=\"sm\"\u003eUniversal or Specific Fit\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2291\" data-end=\"2303\"\u003eSpecific\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2304\" data-end=\"2328\"\u003e\n\u003ctd data-start=\"2304\" data-end=\"2317\" data-col-size=\"sm\"\u003eGrade Type\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2317\" data-end=\"2328\"\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=\"2330\" data-end=\"2333\"\u003e\n\u003ch2 data-start=\"2335\" data-end=\"2361\"\u003eVehicle Compatibility\u003c\/h2\u003e\n\u003cp data-start=\"2362\" data-end=\"2424\"\u003e\u003cem data-start=\"2362\" data-end=\"2424\"\u003e(One resonator required per vehicle unless otherwise noted.)\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3 data-start=\"2426\" data-end=\"2443\"\u003e\u003cstrong data-start=\"2430\" data-end=\"2443\"\u003eChevrolet\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch4 data-start=\"2444\" data-end=\"2457\"\u003eMalibu\u003c\/h4\u003e\n\u003cul data-start=\"2458\" data-end=\"2598\"\u003e\n\u003cli data-start=\"2458\" data-end=\"2504\"\u003e\n\u003cp data-start=\"2460\" data-end=\"2504\"\u003e\u003cstrong data-start=\"2460\" data-end=\"2490\"\u003e2.4L L4 (2384cc \/ 145 cid)\u003c\/strong\u003e → 2008–2012\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2505\" data-end=\"2551\"\u003e\n\u003cp data-start=\"2507\" data-end=\"2551\"\u003e\u003cstrong data-start=\"2507\" data-end=\"2537\"\u003e3.5L V6 (3490cc \/ 213 cid)\u003c\/strong\u003e → 2008–2010\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2552\" data-end=\"2598\"\u003e\n\u003cp data-start=\"2554\" data-end=\"2598\"\u003e\u003cstrong data-start=\"2554\" data-end=\"2584\"\u003e3.6L V6 (3564cc \/ 217 cid)\u003c\/strong\u003e → 2008–2012\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2600\" data-end=\"2603\"\u003e\n\u003ch3 data-start=\"2605\" data-end=\"2620\"\u003e\u003cstrong data-start=\"2609\" data-end=\"2620\"\u003ePontiac\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch4 data-start=\"2621\" data-end=\"2630\"\u003eG6\u003c\/h4\u003e\n\u003cul data-start=\"2631\" data-end=\"2724\"\u003e\n\u003cli data-start=\"2631\" data-end=\"2677\"\u003e\n\u003cp data-start=\"2633\" data-end=\"2677\"\u003e\u003cstrong data-start=\"2633\" data-end=\"2663\"\u003e3.5L V6 (3490cc \/ 213 cid)\u003c\/strong\u003e → 2008–2010\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2678\" data-end=\"2724\"\u003e\n\u003cp data-start=\"2680\" data-end=\"2724\"\u003e\u003cstrong data-start=\"2680\" data-end=\"2710\"\u003e2.4L L4 (2384cc \/ 145 cid)\u003c\/strong\u003e → 2008–2009\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2726\" data-end=\"2729\"\u003e\n\u003ch3 data-start=\"2731\" data-end=\"2745\"\u003e\u003cstrong data-start=\"2735\" data-end=\"2745\"\u003eSaturn\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch4 data-start=\"2746\" data-end=\"2757\"\u003eAura\u003c\/h4\u003e\n\u003cul data-start=\"2758\" data-end=\"2846\"\u003e\n\u003cli data-start=\"2758\" data-end=\"2804\"\u003e\n\u003cp data-start=\"2760\" data-end=\"2804\"\u003e\u003cstrong data-start=\"2760\" data-end=\"2790\"\u003e2.4L L4 (2384cc \/ 145 cid)\u003c\/strong\u003e → 2008–2009\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2805\" data-end=\"2846\"\u003e\n\u003cp data-start=\"2807\" data-end=\"2846\"\u003e\u003cstrong data-start=\"2807\" data-end=\"2837\"\u003e3.5L V6 (3490cc \/ 213 cid)\u003c\/strong\u003e → 2008\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2848\" data-end=\"2851\"\u003e\n\u003ch2 data-start=\"2853\" data-end=\"2885\"\u003eInstallation \u0026amp; Warranty Notes\u003c\/h2\u003e\n\u003cul data-start=\"2887\" data-end=\"3207\"\u003e\n\u003cli data-start=\"2887\" data-end=\"2960\"\u003e\n\u003cp data-start=\"2889\" data-end=\"2960\"\u003eMay require welding or fabrication depending on exhaust system design\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2961\" data-end=\"3015\"\u003e\n\u003cp data-start=\"2963\" data-end=\"3015\"\u003eDesigned to restore OE-style exhaust tone and flow\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3016\" data-end=\"3074\"\u003e\n\u003cp data-start=\"3018\" data-end=\"3074\"\u003eReplace gaskets, clamps, and exhaust hangers as needed\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3075\" data-end=\"3129\"\u003e\n\u003cp data-start=\"3077\" data-end=\"3129\"\u003eBuilt with aluminized steel to extend service life\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3130\" data-end=\"3207\"\u003e\n\u003cp data-start=\"3132\" data-end=\"3207\"\u003eIdeal for vehicles needing noise reduction and smoother exhaust resonance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WALKER","offers":[{"title":"Default Title","offer_id":45856171393223,"sku":"WAL21665","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/2277\/5751\/files\/Screenshot2025-11-21141449.png?v=1763763775","url":"https:\/\/mainstreeteshop.com\/products\/walker-exhaust-resonator-21665","provider":"MAIN STREET ESHOP","version":"1.0","type":"link"}