{"product_id":"walker-21398-exhaust-resonator","title":"Walker 21398 Exhaust Resonator","description":"\u003ch2\u003eOverview of Walker Exhaust Resonator 21398\u003c\/h2\u003e\u003cp\u003eThe Walker 21398 exhaust resonator is designed for direct fitment on select Buick, Chevrolet, and Pontiac models. Engineered with a durable aluminized steel body, this resonator helps reduce exhaust noise and improve overall vehicle sound quality for models like the Buick LaCrosse and Chevrolet Impala.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDirect fit for Buick Allure, Chevrolet Monte Carlo, Impala, and Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003eAluminized steel construction for corrosion resistance\u003c\/li\u003e\n\u003cli\u003eRound resonator shape with 4-inch body diameter and 26-inch length\u003c\/li\u003e\n\u003cli\u003e2.25-inch inlet and outlet diameters with 2 bolt welded flange inlet\u003c\/li\u003e\n\u003cli\u003eCenter inlet and outlet configuration for straightforward installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Product Features and Specifications\u003c\/h2\u003e\u003cp\u003eThe Walker 21398 exhaust resonator features a round body shape measuring 4 inches in width and height, with a length of 26 inches. Constructed from aluminized steel, it offers enhanced durability against rust and heat exposure. The inlet uses a 2 bolt welded flange design, ensuring a secure connection, while the outlet is designed for pipe connection with a 2.25-inch inside and outside diameter. This resonator includes one inlet and one outlet, both centrally configured to match the exhaust flow path of compatible vehicles. Its direct fit design simplifies replacement on Buick Allure, Chevrolet Monte Carlo, Impala, and Pontiac Grand Prix models, maintaining factory exhaust performance and sound characteristics.\u003c\/p\u003e\u003ch2\u003eApplications and Problem Solving\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReduces unwanted exhaust drone and noise in Buick LaCrosse and Chevrolet Impala\u003c\/li\u003e\n\u003cli\u003eRestores proper exhaust flow and sound quality for Pontiac Grand Prix\u003c\/li\u003e\n\u003cli\u003eReplaces damaged or corroded resonators to prevent exhaust leaks\u003c\/li\u003e\n\u003cli\u003eHelps maintain emissions compliance by ensuring exhaust system integrity\u003c\/li\u003e\n\u003cli\u003eImproves overall exhaust system performance on Chevrolet Monte Carlo\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eDesigned as a direct fit replacement; minimal modifications required\u003c\/li\u003e\n\u003cli\u003eEnsure proper alignment of the 2 bolt welded flange inlet for secure mounting\u003c\/li\u003e\n\u003cli\u003eCheck exhaust pipe diameters to confirm 2.25-inch compatibility\u003c\/li\u003e\n\u003cli\u003eUse appropriate gaskets and hardware to prevent leaks\u003c\/li\u003e\n\u003cli\u003eProfessional installation recommended for optimal fit and performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eWalker exhaust components are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The aluminized steel construction offers resistance to corrosion and heat damage. While specific warranty details for part number 21398 may vary, Walker typically provides coverage against defects in materials and workmanship. Consult product documentation or authorized sources for exact warranty terms.\u003c\/p\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":45283568156853,"sku":"BDCN-21398","price":74.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/WK_21398_Fro.jpg?v=1775141993","url":"https:\/\/www.partcatalog.com\/products\/walker-21398-exhaust-resonator","provider":"PartCatalog","version":"1.0","type":"link"}