{"product_id":"hooker-sidetube-slip-in-mufflers-21046hkr","title":"Hooker Sidetube Slip-In Mufflers - 21046HKR","description":"Maximum Flow 4\" Sidetube Slip-In Muffler; These high performance mufflers produce an average of 23% more power than open headers. Sold in pairs.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 21046HKR\u003cbr\u003e\u003cbr\u003eThis high performance muffler has been developed for vehicles with 4\" sidepipes such as 1965-74 Corvettes or vehicles equipped with Hooker Super Competition Roadster and Side Mount Headers. These mufflers produce an average of 23% more power than open headers and feature a high-flow, perforated core that operates at 99% efficiency. High temperature packing material absorbs noise while producing a powerful mellow sound. These mufflers, as tested on a 1968 Corvette with a 427 cu inch engine increased horsepower by 40 at a peak of\n5500 RPM and 20 ft.-lbs. at peak of 4500RPM versus a leading aftermarket undercar header\/turbo-style muffler combination. The outer case is constructed of durable 16 gauge aluminized steel protected by electrostatically applied high-temperature black paint. The inlet\/outlet is a 2.5 perforated core in a 4\" casing. Sold in pairs.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFeatures and Benefits\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e• Fits 4\" Side Tube systems\u003cbr\u003e• Maximum Flow Muffler Design\u003cbr\u003e• Easily Removed For Racing\u003cbr\u003e• Durable 16 Gauge Outer aluminized Steel Case\u003cbr\u003e• Electrostatically applied High-Temp Black Paint Finish\u003cbr\u003e• 2-1\/2\" to 4\" contoured inlet\/outlets\u003cbr\u003e• 2-1\/2\" high flow perforated core in a 4” casing\u003cbr\u003e• 2.5\" Perforated Core Surrounded by High temperature Sound Absorbing Packing Material\u003cbr\u003e\u003cbr\u003e\u003cem\u003e\u003c\/em\u003e","brand":"Hooker","offers":[{"title":"Default Title","offer_id":48275534479587,"sku":"21046HKR","price":680.0,"currency_code":"NZD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0660\/0821\/9875\/files\/680374ea9dad2a83a01a7d58b6a66a78.jpg?v=1771061865","url":"https:\/\/fastlanespares.co.nz\/products\/hooker-sidetube-slip-in-mufflers-21046hkr","provider":"Fast Lane Spares","version":"1.0","type":"link"}