{"product_id":"remark-rk-c4076t-05t-gr-corolla-elite-spec-quad-tip-cat-back","title":"REMARK 23+Toyota GR Corolla Elite Spec Full Titanium Quad Tip Cat Back Exhaust","description":"\u003ch4\u003eFull Titanium Quad-Tip Cat-Back That Lets the GR Corolla Breathe and Sound Like it Means It\u003c\/h4\u003e\n\u003cp\u003eThe REMARK RK-C4076T-05T Elite Spec Full Titanium Quad-Tip Cat-Back Exhaust is the flagship exhaust system for the 2023+ Toyota GR Corolla, engineered for drivers who want maximum flow, minimum weight, and a sound character that matches the 1.6L turbocharged G16E-GTS engine. RK-C4076T-05T uses 3-inch 16-gauge T304 stainless steel mandrel-bent piping throughout, a straight-through resonator on the midpipe, and a high-flow rear muffler canister to reduce backpressure across the entire RPM range. The quad-tip configuration exits with four 4-inch polished stainless steel outer tips surrounding a center 4.5-inch burned titanium cover tip, creating a visually aggressive rear-end presentation unique to the GR Corolla platform. A large OEM-style exhaust valve is integrated into the center exit, preserving the factory valve function for quiet cruise modes. The RK-C4076T-05T is a bolt-on two-piece design that installs without cutting or welding.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eFull titanium and T304 stainless steel construction for maximum weight savings and corrosion resistance\u003c\/li\u003e\n\u003cli\u003e3-inch mandrel-bent T304 piping throughout the cat-back section for zero restriction\u003c\/li\u003e\n\u003cli\u003eQuad-tip exit: four 4-inch polished stainless outer tips plus a 4.5-inch burned titanium center cover tip\u003c\/li\u003e\n\u003cli\u003eStraight-through resonator on the midpipe combined with a rear canister muffler for refined tone without rasp\u003c\/li\u003e\n\u003cli\u003eOEM exhaust valve integration retained in center tip for factory noise mode compatibility\u003c\/li\u003e\n\u003cli\u003eTwo-piece bolt-on design, no cutting or welding required\u003c\/li\u003e\n\u003cli\u003eFitment: 2023+ Toyota GR Corolla Core, Circuit Edition, and Morizo Edition\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eYear Range\u003c\/th\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eTrim\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e2023-2026\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003eGR Corolla\u003c\/td\u003e\n\u003ctd\u003eCore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2023-2026\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003eGR Corolla\u003c\/td\u003e\n\u003ctd\u003eCircuit Edition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2023-2026\u003c\/td\u003e\n\u003ctd\u003eToyota\u003c\/td\u003e\n\u003ctd\u003eGR Corolla\u003c\/td\u003e\n\u003ctd\u003eMorizo Edition\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable style=\"width: 100%; height: 254.719px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 36.9091%; height: 19.5938px;\"\u003eDetail\u003c\/th\u003e\n\u003cth style=\"width: 59.8716%; height: 19.5938px;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.9091%; height: 19.5938px;\"\u003ePart Number\u003c\/td\u003e\n\u003ctd style=\"width: 59.8716%; height: 19.5938px;\"\u003eRK-C4076T-05T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.9091%; height: 19.5938px;\"\u003eBrand\u003c\/td\u003e\n\u003ctd style=\"width: 59.8716%; height: 19.5938px;\"\u003eREMARK\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.9091%; height: 19.5938px;\"\u003eSystem Type\u003c\/td\u003e\n\u003ctd style=\"width: 59.8716%; height: 19.5938px;\"\u003eCat-Back Exhaust\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.9091%; height: 19.5938px;\"\u003ePipe Diameter\u003c\/td\u003e\n\u003ctd style=\"width: 59.8716%; height: 19.5938px;\"\u003e3 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.9091%; height: 19.5938px;\"\u003ePipe Material\u003c\/td\u003e\n\u003ctd style=\"width: 59.8716%; height: 19.5938px;\"\u003e16-gauge T304 stainless steel, titanium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.9091%; height: 19.5938px;\"\u003eTip Style\u003c\/td\u003e\n\u003ctd style=\"width: 59.8716%; height: 19.5938px;\"\u003eQuad-tip with burned titanium center cover\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.9091%; height: 19.5938px;\"\u003eOuter Tip Diameter\u003c\/td\u003e\n\u003ctd style=\"width: 59.8716%; height: 19.5938px;\"\u003e4 inch polished stainless (x4)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.9091%; height: 19.5938px;\"\u003eCenter Cover Tip Diameter\u003c\/td\u003e\n\u003ctd style=\"width: 59.8716%; height: 19.5938px;\"\u003e4.5 inch burned titanium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.9091%; height: 19.5938px;\"\u003eExhaust Valve\u003c\/td\u003e\n\u003ctd style=\"width: 59.8716%; height: 19.5938px;\"\u003eOEM-compatible center valve retained\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.9091%; height: 19.5938px;\"\u003eInstall Type\u003c\/td\u003e\n\u003ctd style=\"width: 59.8716%; height: 19.5938px;\"\u003eBolt-on, two-piece, no cutting or welding\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.9091%; height: 19.5938px;\"\u003eFitment\u003c\/td\u003e\n\u003ctd style=\"width: 59.8716%; height: 19.5938px;\"\u003e2023+ Toyota GR Corolla (all trims)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 36.9091%; height: 19.5938px;\"\u003eUPC\u003c\/td\u003e\n\u003ctd style=\"width: 59.8716%; height: 19.5938px;\"\u003eVerify at point of sale\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eCat-back midpipe section with straight-through resonator\u003c\/li\u003e\n\u003cli\u003eRear muffler section with quad-tip exit assembly\u003c\/li\u003e\n\u003cli\u003eBurned titanium center cover tip (4.5 inch)\u003c\/li\u003e\n\u003cli\u003eFour 4-inch polished stainless outer tips\u003c\/li\u003e\n\u003cli\u003eOEM exhaust valve adapter hardware\u003c\/li\u003e\n\u003cli\u003eMounting hardware and gaskets\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFAQ\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the RK-C4076T-05T fit all GR Corolla trim levels?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, it fits the 2023+ GR Corolla Core, Circuit Edition, and Morizo Edition. All three share the same underbody exhaust routing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this exhaust retain the OEM exhaust valve?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The center tip assembly integrates an OEM-compatible exhaust valve adapter so the factory quiet mode functionality is fully preserved.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill the RK-C4076T-05T trigger a check engine light?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. This is a cat-back system that installs after the catalytic converter, so no oxygen sensor or catalyst-related codes are affected.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the sound level difference compared to stock?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe RK-C4076T-05T produces a noticeably deeper and more aggressive exhaust note under acceleration while remaining refined at cruise thanks to the rear canister muffler design.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs any cutting or welding required for installation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The system is a two-piece bolt-on design that uses the factory hangers and OEM attachment points. No modifications to the vehicle are required.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow much weight does the RK-C4076T-05T save over the stock exhaust?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eREMARK does not publish an exact weight figure, but full titanium and T304 construction provides significant weight savings over the OEM stainless and mild steel system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the pipe diameter of the RK-C4076T-05T?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e3-inch mandrel-bent T304 stainless steel piping throughout the cat-back section, which is larger than the factory system and reduces backpressure at high RPM.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes REMARK offer a warranty on the RK-C4076T-05T?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eREMARK products are backed by a manufacturer warranty against defects in materials and workmanship. Contact REMARK or your authorized dealer for specific warranty terms.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the RK-C4076T-05T be used with a downpipe upgrade?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The cat-back system is independent of the downpipe and connects at the standard mid-pipe junction, making it compatible with aftermarket downpipe upgrades.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003col\u003e\n\u003cli\u003eAllow the factory exhaust to cool completely before beginning removal.\u003c\/li\u003e\n\u003cli\u003eSupport the OEM exhaust from below and remove the factory hangers from the rubber isolators.\u003c\/li\u003e\n\u003cli\u003eDisconnect the OEM exhaust at the midpipe flange and remove the rear section.\u003c\/li\u003e\n\u003cli\u003eRoute the RK-C4076T-05T midpipe section and connect to the factory flange, hand-tighten hardware.\u003c\/li\u003e\n\u003cli\u003eHang the rear muffler section on the factory rubber isolators and connect to the midpipe.\u003c\/li\u003e\n\u003cli\u003eAlign the quad-tip assembly for even clearance and torque all flanges to spec.\u003c\/li\u003e\n\u003cli\u003eReconnect the OEM exhaust valve wiring harness to the center tip adapter.\u003c\/li\u003e\n\u003cli\u003eStart the vehicle and check for leaks at all connection points before driving.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eWARNING:\u003c\/strong\u003e This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.\u003c\/p\u003e","brand":"Remark","offers":[{"title":"Default Title","offer_id":45989498191951,"sku":"REMRK-C4076T-05T","price":3788.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/remark-rk-c4076t-05t-toyota-gr-corolla-titanium-catback-exhaust.png?v=1782908597","url":"https:\/\/www.blackopsautoworks.com\/products\/remark-rk-c4076t-05t-gr-corolla-elite-spec-quad-tip-cat-back","provider":"Black Ops Auto Works","version":"1.0","type":"link"}