Porsche 911 GT3 / GT3 Touring / S/T 992.1 Wheel Fitment Guide
This guide covers three related 992.1 models that share an identical wheel and brake platform: the 911 GT3 (2022–2024), the 911 GT3 Touring (2022–2024), and the limited-edition 911 S/T (2024, 1,963 units). All three use the same OEM wheel dimensions, the same centerlock hub, and the same 20/21″ staggered configuration. They all ride on the Carrera-family body — not the wider Turbo body used by the GT3 RS. Despite sharing the Carrera body width, their wheel offsets are completely different from the Carrera/GTS family: the GT3 family runs ET46 front and ET45 rear, versus the Carrera’s ET53 front and ET67 rear.
The key differences between the three models in this guide: the S/T ships standard with PCCB ceramic brakes while the GT3 and GT3 Touring use steel brakes standard; the S/T deletes rear-axle steering while both GT3 variants have it standard; and the GT3 offers both PDK and manual while the GT3 Touring and S/T are manual-only. For wheel fitment purposes, these differences are secondary — all three use identical wheel hardware, identical brakes clearance thresholds, and the same centerlock torque protocol.
All three ship exclusively with centerlock wheels. The centerlock nut requires a dedicated torque tool at 900 Nm — impact wrenches are never appropriate. Spacers are not compatible with the centerlock hub. Direct TPMS sensors must be transferred or replaced when fitting aftermarket wheels.
Our flush fitment options are designed to work without rubbing while maintaining proper clearance and everyday drivability.
Factory Wheel & Tire Configurations
All three models use the same standard delivery wheel: 9.5Jx20 ET46 front / 12Jx21 ET45 rear, forged aluminum, centerlock. Three optional upgrade packages are available in various forged aluminum and magnesium constructions — all sharing the same rim dimensions. The Manthey lightweight aluminum set is GT3 and GT3 Touring only; the S/T Heritage magnesium uses a 1mm more outward rear offset (ET44 vs ET45) and has a distinct S/T-specific spoke design.
Aftermarket Wheel & Tire Configurations
All setups below are confirmed by Apex Wheels’ 3D-scan verified 992.1 GT3 fitment guide and apply equally to the GT3, GT3 Touring, and S/T — all three share identical wheel well geometry. The performance street setups use 20″ fronts and clear the factory brakes on all three variants. The hardcore track setup uses 19″ fronts and requires replacing the factory front brakes with an aftermarket kit. All 19″ and 20″ Apex wheels are confirmed to clear rear-axle steering — noting that the S/T does not have RAS, so this constraint is relevant only for the GT3 and GT3 Touring.
Three constraints define the GT3 / GT3 Touring / S/T fitment universe. First, despite sharing the Carrera-family body width, the GT3 family uses completely different wheel offsets from all other 992.1 Carrera variants — ET46 front and ET45 rear, versus the Carrera's ET53 front and ET67 rear. GT3 wheels do not produce correct fitment on a Carrera, and vice versa. Second, all three models ship exclusively with centerlock wheels. The centerlock nut must be torqued to 900 Nm with a dedicated torque tool — never an impact wrench. Spacers are not compatible. Third, the standard 408mm steel brakes (GT3 / GT3 Touring) and standard 410mm PCCB ceramics (S/T) both require a minimum 20" front wheel. The only path to 19" fronts is replacing the factory front brakes with an aftermarket kit whose calipers clear 19" wheels.
Flush Fitment
Staggered Setup
Aggressive Fitment
Staggered Setup
Not Sure What Works for Your Build?
The GT3 family has a unique fitment fingerprint — offsets that don’t match anything else in the 992.1 lineup, magnesium wheel options that demand specific care, and a 19″ path that only opens up once the factory brakes come off. Whether you’re chasing lighter rotating mass, a track-focused 19″ setup, or just a confirmed replacement for your OEM centerlock wheels, reach out and we’ll sort it.
FAQ - Frequently Asked Questions
Yes — all three share identical wheel dimensions: 9.5Jx20 ET46 front and 12Jx21 ET45 rear, 255/35ZR20 and 315/30ZR21 tires, on centerlock hubs. The standard delivery wheel is the same forged aluminum unit on the GT3 and GT3 Touring; the S/T ships standard with a distinct Heritage Magnesium wheel (same ET46 front, ET44 rear — 1mm difference). The Suncoast GT3 wheel set listing explicitly confirms fitment across all three models.
Standard delivery: 9.5Jx20 ET46 front with 255/35ZR20 and 12Jx21 ET45 rear with 315/30ZR21, forged aluminum centerlock, Brilliant Silver finish. Three optional upgrades are available: the Manthey Lightweight forged aluminum (same dimensions, ~8.7kg lighter per set, GT3 / GT3 Touring only), the GT3 Magnesium (same dimensions, forged magnesium, ~8.7kg lighter, fits all three), and the S/T Heritage Magnesium (standard on S/T, ET44 rear, distinct spoke design, also fits GT3 / GT3 Touring hubs).
The wheels physically mount — same 5×130 bolt pattern and 71.6mm center bore — but the offsets are completely wrong for the other body. GT3 front wheels use ET46 versus the Carrera’s ET53; GT3 rear wheels use ET45 versus the Carrera’s ET67. Mounting GT3 front wheels on a Carrera would result in approximately 7mm of additional protrusion at the front, and GT3 rear wheels would protrude approximately 22mm further than correct. Carrera wheels on a GT3 would sit deeply tucked. Beyond aesthetics, incorrect offset affects scrub radius and handling geometry. These wheels are not interchangeable in practice.
The GT3 and GT3 Touring ship standard with 6-piston 408mm front steel brakes — the same caliper size as the GTS and Turbo. These cannot be cleared by a 19″ front wheel. The optional PCCB ceramics on the GT3 family are 410mm front — also too large for 19″. The S/T’s standard PCCB ceramics are 410mm and also preclude 19″ fronts. The only path to 19″ fronts on any of these three models is replacing the factory front brakes with an aftermarket kit whose calipers clear 19″ — Apex confirms the AP Racing by Essex CP9661 394mm front kit clears both 19″ and 20″ wheels.
GT3 and GT3 Touring standard: 6-piston 408mm front / 4-piston 380mm rear, cast iron, red calipers. Optional PCCB: 6-piston 410mm front / 4-piston 390mm rear. S/T standard: PCCB ceramics are standard equipment on the S/T — 6-piston 410mm front / 4-piston 390mm rear — PCCB is not optional on the S/T, it ships with them. All brake configurations across all three models require a minimum 20″ front wheel.
900 Nm / 664 lb-ft, using a dedicated centerlock torque tool. Standard impact wrenches must never be used — they apply uncontrolled impact force that damages the anodized nut profile and can compromise proper seating. Options include the Porsche-approved factory tool, HYTORC Lion Gun kit, RENNtorq V2, and others. For owners without the correct equipment, wheel changes should be done at a Porsche service center or a shop with the proper tool.
The S/T does not have rear-axle steering — this is one of its defining characteristics, intentionally deleted to sharpen steering response and reduce weight. The GT3 and GT3 Touring both have rear-axle steering standard. For wheel fitment purposes: Apex confirms all their 19″ and 20″ GT3 wheels clear RAS actuators, which covers the GT3 and GT3 Touring. The S/T has no RAS actuators to clear, so there is no RAS fitment concern on that model.
Magnesium is significantly lighter than aluminum — the GT3 magnesium wheel set saves approximately 8.7kg per vehicle set versus the standard forged aluminum wheels. This reduction in unsprung and rotating mass improves suspension response and steering feel. The tradeoff is that magnesium requires specific care: alkaline or acidic wheel cleaners will corrode the material. Only pH-neutral cleaners approved for magnesium should be used. OEM magnesium wheels for the GT3 family are approximately $24,000 per set (Suncoast, 2025). The S/T Heritage Magnesium wheels are approximately $47,000 per set — reflecting the S/T-specific spoke design and the magnesium program cost.
None. The GT3 Touring uses the same body, the same suspension, the same wheel and tire specs, and the same brake configurations as the GT3. The Touring package removes the fixed rear wing and replaces it with a deployable spoiler, adds leather interior trim, and is manual-only. All wheel fitment data in this guide applies identically to both. The only ordering difference is that the Clubsport package is available on the GT3 but not the GT3 Touring.
GT3 and GT3 Touring: 2022–2024 USDM (unveiled February 2021, US deliveries began MY2022). The 992.2 GT3 and GT3 Touring were unveiled October 2024 for MY2025. S/T: MY2024 only, limited to 1,963 units worldwide, produced in 2023–2024. This guide covers the 992.1 generation only and does not apply to the 992.2 GT3 or GT3 Touring.