{"product_id":"corsa-valve-back-c7-stingray-grand-sport-auto","title":"CORSA Valve-Back Exhaust w\/ 4.5 in Twin Tips — C7 Stingray \u0026 Grand Sport Auto","description":"\u003cp\u003eCORSA's valve-back system for the C7 Stingray and Grand Sport Automatic covers more of the exhaust system than a standard axle-back — delivering a more complete sound transformation. Available in Sport or Xtreme sound levels, with 2.75-inch tubing and 4.5-inch twin tips sized for the LT1's flow demands. CORSA's patented sound technology keeps interior drone lower than most competitors at this output level.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSport (14764)\u003c\/strong\u003e\u003cbr\u003eStrong, refined exhaust note with CORSA's drone reduction. The better daily driver choice — aggressive under hard acceleration, livable at highway cruise.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eXtreme (14762)\u003c\/strong\u003e\u003cbr\u003eCORSA's most aggressive sound tier. Dramatic, full-system exhaust transformation. For owners who want maximum impact from a complete exhaust upgrade.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePerformance Expectations\u003c\/strong\u003e\u003cbr\u003eA valve-back system replaces more of the factory exhaust than an axle-back alone, resulting in a more dramatic and consistent sound improvement throughout the RPM range. CORSA's drone cancellation technology is a genuine differentiator — owners report significantly less highway drone compared to competing systems at the same sound level.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003cbr\u003eCORSA valve-back muffler assembly, 4.5-inch twin tips, all hardware and clamps, installation instructions.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003cbr\u003eFits 2014-2019 C7 Corvette Stingray and 2017-2019 Grand Sport Automatic only. Grand Sport Manual uses different part numbers.\u003c\/p\u003e","brand":"Torque District","offers":[{"title":"Sport","offer_id":48837653233907,"sku":"14764","price":2723.99,"currency_code":"USD","in_stock":true},{"title":"Xtreme","offer_id":48837653266675,"sku":"14762","price":2039.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/7500\/8755\/files\/Valve-Back_Exhaust_4.5_Twin_Tips_C7_Stingray.png?v=1778636587","url":"https:\/\/torquedistrictparts.com\/products\/corsa-valve-back-c7-stingray-grand-sport-auto","provider":"Torque District","version":"1.0","type":"link"}