{"product_id":"milltek-large-bore-downpipe-for-toyota-corolla-gr-corolla-1-6-turbo-ssxty153","title":"Milltek Large Bore Downpipe for Toyota Corolla GR Corolla 1.6 Turbo","description":"\u003cp\u003eMilltek Large Bore Downpipe with integrated Hi-Flow Sports Cat combines increased gas flow with optimized catalyst efficiency. Fabricated with larger-diameter tubing than OEM equivalents, this system routes exhaust more efficiently from the engine while maintaining emissions compliance through the high-flow cat element. Direct fit for use with OE secondary cat-back systems; no modification required.\u003c\/p\u003e\u003cp\u003eConstructed from T304L stainless steel, mandrel-bent throughout for consistent internal diameter and zero turbulence. Hand-finished welds and precision CNC-formed sections ensure OEM+ fitment using factory hangers and mounting points. Requires Stage 2 ECU remap to unlock full performance potential.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment \u0026amp; Compatibility:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFits 6-speed manual transmission models only, not the 8-speed automatic (GR-DAT)\u003c\/li\u003e\n\u003cli\u003eWorks exclusively with OE secondary cat-back exhaust systems\u003c\/li\u003e\n\u003cli\u003eReplaces restrictive factory downpipe\u003c\/li\u003e\n\u003cli\u003eMaintains emissions-legal operation with hi-flow catalyst\u003c\/li\u003e\n\u003cli\u003eECU tuning required for optimal results\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eEngineered for precise resonance control and tailored exhaust note character. Dyno-proven power gains without sacrificing streetability or reliability.\u003c\/p\u003e\n\u003cp\u003eDesigned and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.\u003c\/p\u003e\n\u003ch3\u003eVehicle fitment\u003c\/h3\u003e\n\u003cul class=\"fitment-list\"\u003e\n\u003cli\u003e2023-2024 Toyota GR Corolla Circuit Edition\u003c\/li\u003e\n\u003cli\u003e2023-2026 Toyota GR Corolla Core\u003c\/li\u003e\n\u003cli\u003e2023 Toyota GR Corolla Morizo Edition\u003c\/li\u003e\n\u003cli\u003e2024-2026 Toyota GR Corolla Premium\u003c\/li\u003e\n\u003cli\u003e2025-2026 Toyota GR Corolla Premium Plus\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Milltek","offers":[{"title":"Default Title","offer_id":60151425597726,"sku":"MILSSXTY153","price":2128.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0759\/7965\/3406\/files\/SSXTY153_1.jpg?v=1791261995","url":"https:\/\/shop.signatureautohaus.com\/products\/milltek-large-bore-downpipe-for-toyota-corolla-gr-corolla-1-6-turbo-ssxty153","provider":"Signature Autohaus","version":"1.0","type":"link"}