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AUDI RS3 / TTRS FITMENT
The RS3 and TTRS feature the legendary 2.5L inline-5 turbo engine and use a 5x112 bolt pattern with a 57.1mm center bore. These compact performance cars produce 400+ hp through Quattro AWD, demanding square setups to protect the Haldex-based system. Their relatively light weight (3,400 lbs) makes them incredibly responsive to unsprung weight reduction via forged wheels.
Quick Reference
Bolt Pattern: 5x112 | Center Bore: 57.1mm | Hub Type: Ball Seat | Lug Torque: 120 Nm (89 ft-lb)
AWD Warning: Always run square tire setups to protect the Haldex AWD system. The factory "reverse stagger" (wider front tires) is a band-aid for understeer; a true square setup with aftermarket sway bars is vastly superior.
19" Square — The Street Standard
19 inches is the enthusiast standard for RS3 and TTRS builds, filling the arches while maintaining clearance for the massive factory 8-piston front brakes.
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19" Flush Square
Perfect aesthetics and massive front grip for daily driving.
- Recommended Size: 19x9 ET35 all around (or ET30 for 8Y RS3)
- Street Tires: 255/30R19 or 265/30R19 Square
Why this setup: ET28–ET38 is the safe range. The newer 8Y RS3 (2022+) has slightly wider fenders than the 8V (2017–2021) and can accommodate ET30 perfectly. The TTRS has the same clearances as the RS3. Going below ET25 will cause poke beyond the fender line. A forged 19x9 saves significant weight over the heavy factory wheels.
18" Square — Track Weapon
The 5-cylinder screams for lightweight wheels — this is where the magic happens. 18-inch wheels provide more sidewall for track curbing and significantly reduce unsprung weight.
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18" Lightweight Track Square
Maximum mechanical grip and minimum rotational mass.
- Recommended Size: 18x9 ET35 all around
- Track Tires (200TW): 255/35R18 or 265/35R18 Square
- Brake Warning: Spoke geometry is critical to clear the massive 8-piston front calipers.
Why this setup: 18-inch wheels clear the factory 8-piston front calipers with proper spoke geometry. A forged 18x9 under 18 lbs is transformative on the compact RS3/TTRS platform, dramatically improving acceleration, braking, and turn-in response.
Recommended Tires by Use Case
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RS3 / TTRS Tire Selection Guide
- Street Performance: Michelin Pilot Sport 4S — excellent daily drivability and wet performance while retaining top-tier dry grip.
- Track / Autocross (200TW): Yokohama Advan A052 — massive grip for HPDE events.
- All-Season: Continental ExtremeContact DWS 06 Plus — excellent year-round performance for daily drivers.
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