{"product_id":"kia-k4-turbo-1-6t-axle-back-exhaust-system","title":"Kia K4 Turbo 1.6T Axle Back Exhaust System | 304 Stainless Steel | Direct Bolt On","description":"\u003ch1 data-section-id=\"js8in5\" data-start=\"497\" data-end=\"541\"\u003eKia K4 Turbo 1.6T Axle Back Exhaust System\u003c\/h1\u003e\n\u003cp data-start=\"543\" data-end=\"818\"\u003eUnlock a deeper, sportier tone for your Kia K4 Turbo with the AeroFlow Dynamics axle back exhaust system. Designed specifically for the 1.6L turbo platform, this system gives the K4 a more aggressive sound profile while keeping the install simple with direct bolt on fitment.\u003c\/p\u003e\n\u003cp data-start=\"820\" data-end=\"1196\"\u003eBuilt from high quality SS 304 stainless steel, this axle back system is made for long term durability, clean exhaust flow, and a premium motorsport inspired finish. Whether you drive the K4 hatch or sedan, this setup is the perfect upgrade for owners who want better sound, sharper rear end presence, and a more exciting driving experience without overcomplicating the build.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1iptetf\" data-start=\"1198\" data-end=\"1221\"\u003ePlatform Engineering\u003c\/h2\u003e\n\u003cp data-start=\"1223\" data-end=\"1452\"\u003eThe AFD Kia K4 Turbo axle back system is designed for the 1.6L turbo motor only. Every section is built around the factory mounting points to help maintain proper alignment, clean fitment, and an OEM plus installation experience.\u003c\/p\u003e\n\u003cp data-start=\"1454\" data-end=\"1616\"\u003eThis is not a universal muffler setup. It is engineered specifically for the Kia K4 Turbo platform to deliver the right balance of tone, fitment, and drivability.\u003c\/p\u003e\n\u003ch2 data-section-id=\"h345jg\" data-start=\"1618\" data-end=\"1653\"\u003e304 Stainless Steel Construction\u003c\/h2\u003e\n\u003cp data-start=\"1655\" data-end=\"1935\"\u003eMade from SS 304 stainless steel, this system is built to handle heat, moisture, and daily driving conditions better than lower grade exhaust materials. SS 304 is commonly used in premium performance exhaust systems because of its strength, corrosion resistance, and clean finish.\u003c\/p\u003e\n\u003ch2 data-section-id=\"mtwnil\" data-start=\"1937\" data-end=\"1953\"\u003eSound Profile\u003c\/h2\u003e\n\u003cp data-start=\"1955\" data-end=\"2185\"\u003eThe AFD Kia K4 Turbo axle back exhaust gives the car a deeper and more aggressive tone compared to stock. It adds more presence during startup, acceleration, and spirited driving while keeping the car refined enough for daily use.\u003c\/p\u003e\n\u003ch3 data-section-id=\"bgde17\" data-start=\"2187\" data-end=\"2212\"\u003eSound Characteristics\u003c\/h3\u003e\n\u003cp data-start=\"2214\" data-end=\"2246\"\u003eDeeper exhaust tone over factory\u003c\/p\u003e\n\u003cp data-start=\"2248\" data-end=\"2273\"\u003eSportier turbo 1.6L sound\u003c\/p\u003e\n\u003cp data-start=\"2275\" data-end=\"2306\"\u003eCleaner rear section appearance\u003c\/p\u003e\n\u003cp data-start=\"2308\" data-end=\"2353\"\u003eMore aggressive startup and acceleration note\u003c\/p\u003e\n\u003cp data-start=\"2355\" data-end=\"2404\"\u003eDesigned for daily street driving and weekend fun\u003c\/p\u003e\n\u003ch2 data-section-id=\"1ma7m6t\" data-start=\"2406\" data-end=\"2421\"\u003eKey Features\u003c\/h2\u003e\n\u003cp data-start=\"2423\" data-end=\"2460\"\u003e🔥 Designed for the Kia K4 Turbo 1.6T\u003c\/p\u003e\n\u003cp data-start=\"2462\" data-end=\"2487\"\u003e✅ Fits K4 hatch and sedan\u003c\/p\u003e\n\u003cp data-start=\"2489\" data-end=\"2516\"\u003e✅ For 1.6L turbo motor only\u003c\/p\u003e\n\u003cp data-start=\"2518\" data-end=\"2547\"\u003e✅ Direct bolt on installation\u003c\/p\u003e\n\u003cp data-start=\"2549\" data-end=\"2583\"\u003e✅ Made from SS 304 stainless steel\u003c\/p\u003e\n\u003cp data-start=\"2585\" data-end=\"2611\"\u003e✅ Axle back exhaust design\u003c\/p\u003e\n\u003cp data-start=\"2613\" data-end=\"2640\"\u003e✅ Improved sound over stock\u003c\/p\u003e\n\u003cp data-start=\"2642\" data-end=\"2666\"\u003e✅ Clean OEM plus fitment\u003c\/p\u003e\n\u003cp data-start=\"2668\" data-end=\"2716\"\u003e✅ Built for durability and long term performance\u003c\/p\u003e\n\u003ch2 data-section-id=\"1dixaz0\" data-start=\"2718\" data-end=\"2728\"\u003eFitment\u003c\/h2\u003e\n\u003cp data-start=\"2730\" data-end=\"2764\"\u003e2025+ Kia K4 Turbo Hatch 1.6L only\u003c\/p\u003e\n\u003cp data-start=\"2766\" data-end=\"2800\"\u003e2025+ Kia K4 Turbo Sedan 1.6L only\u003c\/p\u003e\n\u003cp data-start=\"2802\" data-end=\"2918\"\u003eThis system does not fit non turbo models. This system is only for Kia K4 models equipped with the 1.6L turbo motor.\u003c\/p\u003e\n\u003ch2 data-section-id=\"igcizn\" data-start=\"2920\" data-end=\"2939\"\u003eInstall Friendly\u003c\/h2\u003e\n\u003cp data-start=\"2941\" data-end=\"3099\"\u003eThe AFD axle back exhaust system is designed as a direct bolt on upgrade. No major modification is required when installed on the correct vehicle application.\u003c\/p\u003e\n\u003cp data-start=\"3101\" data-end=\"3201\"\u003eProfessional installation is always recommended for best alignment, clearance, and final adjustment.\u003c\/p\u003e\n\u003ch2 data-section-id=\"upsx6k\" data-start=\"3203\" data-end=\"3215\"\u003eLead Time\u003c\/h2\u003e\n\u003cp data-start=\"3217\" data-end=\"3224\"\u003e\u003cstrong\u003ePRE-ORDER SHIPS AUGUST 2026\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"5t2o49\" data-start=\"3226\" data-end=\"3267\"\u003eWhy Upgrade Your Kia K4 Turbo Exhaust?\u003c\/h2\u003e\n\u003cp data-start=\"3269\" data-end=\"3490\"\u003eThe factory exhaust on the Kia K4 Turbo is designed to be quiet and conservative. The AFD axle back system gives your K4 the sound and attitude it should have from the factory while maintaining a clean, direct fit design.\u003c\/p\u003e\n\u003cp data-start=\"3492\" data-end=\"3662\"\u003eThis is the perfect first performance upgrade for K4 owners who want more sound, better appearance, and a more engaging drive without replacing the entire exhaust system.\u003c\/p\u003e","brand":"KIA Motors","offers":[{"title":"Default Title","offer_id":51719677837528,"sku":null,"price":449.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0872\/6382\/files\/Photoroom_20260516_210337.png?v=1779841619","url":"https:\/\/www.aeroflowdynamics.com\/products\/kia-k4-turbo-1-6t-axle-back-exhaust-system","provider":"AeroflowDynamics","version":"1.0","type":"link"}