{"product_id":"porsche-992-gt3-gt3rs-maxflow-collector-header-vanta-edition-yonristic-performance","title":"Porsche 992 GT3 \/ GT3RS - “MaxFlow Collector”  Header VANTA Edition - Yonristic Performance","description":"\u003cp data-start=\"289\" data-end=\"320\"\u003e\u003cstrong data-start=\"289\" data-end=\"320\"\u003eReach Further. Race Louder.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"322\" data-end=\"925\"\u003eThe 992 GT3 is already among the most refined and fierce track cars available — but even it is held back by compromises in its factory header and collector assembly. Space constraints, restrictive merge geometry, and emission requirements force tight, convoluted collectors that choke flow and hide the flat-six’s true potential. Our \u003cstrong data-start=\"656\" data-end=\"684\"\u003eMaxFlow Collector Header\u003c\/strong\u003e was engineered to solve all of that with a \u003cstrong data-start=\"728\" data-end=\"764\"\u003edeliberately oversized collector\u003c\/strong\u003e tuned for maximum scavenging and freer flow, while still preserving the equal-length, long-runner design that delivers harmony and balance across the rev range.\u003c\/p\u003e\n\u003ch3 data-start=\"927\" data-end=\"957\"\u003eDesign \u0026amp; Flow Philosophy\u003c\/h3\u003e\n\u003cp data-start=\"958\" data-end=\"1561\"\u003eEvery runner is matched in length so that exhaust pulses arrive in phase at the collector, eliminating destructive wave interference. The standout feature, however, is the \u003cstrong data-start=\"1130\" data-end=\"1166\"\u003eoversized, high-volume collector\u003c\/strong\u003e, which reduces backpressure even at peak exhaust volume. This setup allows the engine to “breathe out” more freely, improving cylinder evacuation and enabling a stronger charge fill on the next intake stroke. The result: smoother throttle transitions, stronger torque through mid-range, and a more controlled aggressive wail at high RPM without the spiky rasp that lesser headers often produce.\u003c\/p\u003e\n\u003ch3 data-start=\"1563\" data-end=\"1593\"\u003eMaterial \u0026amp; Build Quality\u003c\/h3\u003e\n\u003cp data-start=\"1594\" data-end=\"2097\"\u003eWe build the MaxFlow header using \u003cstrong data-start=\"1628\" data-end=\"1656\"\u003e100% 304 stainless steel\u003c\/strong\u003e, wrapped in our signature \u003cstrong data-start=\"1683\" data-end=\"1707\"\u003eheat-shield material\u003c\/strong\u003e to protect surrounding components and suppress radiant heat. Fittings, flanges, and brackets are CNC-machined from the 3D scan data of the 992’s engine bay, and every bend is mandrel-formed to maintain uninterrupted flow. All seams are executed using back-purged, hand TIG welding—inside and out—to preserve internal surface smoothness and structural robustness under extreme temperatures.\u003c\/p\u003e\n\u003ch3 data-start=\"2099\" data-end=\"2137\"\u003ePerformance Estimates \u0026amp; Versions\u003c\/h3\u003e\n\u003cp data-start=\"2138\" data-end=\"2266\"\u003eWhile actual dyno results will vary, here are realistic projections based on published aftermarket results on 992 GT3 platforms:\u003c\/p\u003e\n\u003cdiv class=\"_tableContainer_1rjym_1\"\u003e\n\u003cdiv class=\"group _tableWrapper_1rjym_13 flex w-fit flex-col-reverse\" tabindex=\"-1\"\u003e\n\u003ctable data-start=\"2268\" data-end=\"2536\" class=\"w-fit min-w-(--thread-content-width)\"\u003e\n\u003cthead data-start=\"2268\" data-end=\"2321\"\u003e\n\u003ctr data-start=\"2268\" data-end=\"2321\"\u003e\n\u003cth data-start=\"2268\" data-end=\"2278\" data-col-size=\"sm\"\u003eVersion\u003c\/th\u003e\n\u003cth data-start=\"2278\" data-end=\"2299\" data-col-size=\"sm\"\u003eEstimated WHP Gain\u003c\/th\u003e\n\u003cth data-start=\"2299\" data-end=\"2321\" data-col-size=\"sm\"\u003eEstimated WTQ Gain\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody data-start=\"2336\" data-end=\"2536\"\u003e\n\u003ctr data-start=\"2336\" data-end=\"2395\"\u003e\n\u003ctd data-start=\"2336\" data-end=\"2366\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2338\" data-end=\"2365\"\u003e200-Cell Catted Version\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"2366\" data-end=\"2379\" data-col-size=\"sm\"\u003e+14–18 whp\u003c\/td\u003e\n\u003ctd data-start=\"2379\" data-end=\"2395\" data-col-size=\"sm\"\u003e+18–22 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2396\" data-end=\"2454\"\u003e\n\u003ctd data-start=\"2396\" data-end=\"2425\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2398\" data-end=\"2424\"\u003eCatless (Race) Version\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-start=\"2425\" data-end=\"2438\" data-col-size=\"sm\"\u003e+20–25 whp\u003c\/td\u003e\n\u003ctd data-start=\"2438\" data-end=\"2454\" data-col-size=\"sm\"\u003e+25–30 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-start=\"2455\" data-end=\"2536\"\u003e\n\u003ctd data-start=\"2455\" data-end=\"2495\" data-col-size=\"sm\"\u003e\u003cstrong data-start=\"2457\" data-end=\"2494\"\u003eWith ECU Tune (on either version)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2495\" data-end=\"2531\"\u003eAdditional +5–8 whp \/ +6–10 lb-ft\u003c\/td\u003e\n\u003ctd data-col-size=\"sm\" data-start=\"2531\" data-end=\"2536\"\u003e—\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp data-start=\"2538\" data-end=\"2861\"\u003eThese gains come from the increased breathing capacity, better scavenging, and reduced backpressure of the larger collector in conjunction with the equal-length layout. To fully unlock them, a custom ECU calibration is strongly recommended, especially for the catless version to keep AFRs safe and emissions faults cleared.\u003c\/p\u003e\n\u003ch3 data-start=\"2863\" data-end=\"2886\"\u003eSound \u0026amp; Character\u003c\/h3\u003e\n\u003cp data-start=\"2887\" data-end=\"3337\"\u003eWith the MaxFlow header installed, the flat-six’s voice transforms. Idle deepens and gains harmonic richness. Under acceleration, note density increases — sharper, harder, more “alive.\" In the upper rev band, the tone stays clean and layered, rather than clipping or turning edgy. Because the collector is large but carefully tuned, the aggressive tone doesn’t come with unwanted drone: you get clarity and performance in one cohesive sound envelope.\u003c\/p\u003e\n\u003ch3 data-start=\"3339\" data-end=\"3367\"\u003eFitment \u0026amp; Installation\u003c\/h3\u003e\n\u003cul data-start=\"3368\" data-end=\"3794\"\u003e\n\u003cli data-start=\"3368\" data-end=\"3427\"\u003e\n\u003cp data-start=\"3370\" data-end=\"3427\"\u003e\u003cstrong data-start=\"3370\" data-end=\"3381\"\u003eFitment\u003c\/strong\u003e: Porsche 992 GT3 \/ GT3 RS (all model years)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3428\" data-end=\"3574\"\u003e\n\u003cp data-start=\"3430\" data-end=\"3574\"\u003e\u003cstrong data-start=\"3430\" data-end=\"3446\"\u003eInstallation\u003c\/strong\u003e: Bolt-on; uses OEM mounting points. Some heat shielding or bracket repositioning may be required due to the larger collector.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3575\" data-end=\"3642\"\u003e\n\u003cp data-start=\"3577\" data-end=\"3642\"\u003e\u003cstrong data-start=\"3577\" data-end=\"3594\"\u003eReversibility\u003c\/strong\u003e: Fully returnable to stock headers if needed.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3643\" data-end=\"3794\"\u003e\n\u003cp data-start=\"3645\" data-end=\"3794\"\u003e\u003cstrong data-start=\"3645\" data-end=\"3662\"\u003eCompatibility\u003c\/strong\u003e: Works with factory or aftermarket mid\/rear exhaust assemblies. Tuning required for optimal results—especially the catless version.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Yonristic Performance","offers":[{"title":"Free Flow (Race Edition)","offer_id":46034895110378,"sku":"YR-3136-POR-FRE","price":2499.0,"currency_code":"USD","in_stock":true},{"title":"200 Cells Catted (Street Edition)","offer_id":46034895143146,"sku":"YR-8327-POR-200","price":2999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0477\/0427\/7142\/files\/326_e179902d-dd33-460f-acbe-d11432fd4951.jpg?v=1778282236","url":"https:\/\/www.k2-industries.com\/en-hk\/products\/porsche-992-gt3-gt3rs-maxflow-collector-header-vanta-edition-yonristic-performance","provider":"K2 Industries","version":"1.0","type":"link"}