{"product_id":"ktm-superduke-1390r-2023-2026-gp-r4-slip-on-exhaust","title":"KTM SuperDuke 1390R 2023-2026 GP-R4 slip-on exhaust","description":"The GP-R4 slip-on exhaust for KTM SuperDuke 1390R (2023–2026) delivers aggressive performance and unmistakable presence. Its bold design produces a distinctive, head-turning sound that enhances both racetrack aggression and street presence.\u003cbr\u003e\u003cbr\u003eEngineered and proudly made in the UK, the GP-R4 combines lightweight construction with precision craftsmanship. Choose from stainless steel or titanium with Brushed or Ceramic Black finishes for a premium, modern aesthetic that complements the SuperDuke's aggressive naked bike stance.\u003cbr\u003e\u003cbr\u003eRemovable baffle comes with the exhaust. Premium materials, meticulous build quality, and attention to detail make the GP-R4 an essential upgrade for riders who demand performance and style in equal measure.","brand":"Pro-Race exhaust systems","offers":[{"title":"Stainless Steel \/ Brushed","offer_id":58944390463869,"sku":null,"price":299.0,"currency_code":"GBP","in_stock":true},{"title":"Stainless Steel \/ Ceramic Black","offer_id":58944390496637,"sku":null,"price":349.0,"currency_code":"GBP","in_stock":true},{"title":"Titanium \/ Brushed","offer_id":58944390529405,"sku":null,"price":449.0,"currency_code":"GBP","in_stock":true},{"title":"Titanium \/ Ceramic Black","offer_id":58944390562173,"sku":null,"price":499.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0911\/2387\/6221\/files\/1290_SDR_21-23-GPR4-90.png?v=1793281448","url":"https:\/\/www.pro-race.co.uk\/products\/ktm-superduke-1390r-2023-2026-gp-r4-slip-on-exhaust","provider":"Pro-Race exhaust systems","version":"1.0","type":"link"}