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Fitment guide

Porsche 911 997 GT3 Wheel & Tire Fitment Guide

Originally published | 03/17/2021
Updated | 09/21/2023

Vehicle Covered in this Guide

2006-2012 Porsche 997 911 GT3 Narrowbody Chassis

Brake Clearance Information

In the engineering phase of wheel development we 3D scan factory brakes and review 2D aftermarket brake templates in order to optimize our barrel profiles and spoke curvatures. As a result, our wheels offer massive brake clearance so you can run the smallest possible wheel diameter. Our 18" wheels clear the optional factory PCCB.

Available Wheel Designs

Bolt Pattern

5x130

Center Bore

71.6mm

Lug Seat

R14 Ball Seat

Thread Pitch

M14x1.5mm

Performance Street and Track Wheel Fitment

Wider fitments for enhanced performance

  • White Porsche 911 - SM-10 in Anthracite

Whether you enjoy spirited street driving or you are a weekend track warrior chasing lap times, these wheel & tire configurations are ideal for enthusiasts looking for a more dramatic improvement in performance and they are typically paired with performance oriented summer tires or track oriented r-compounds. Most notably, these fitments incorporate wider 9” front wheels which provide superior tire sidewall support over the stock 8.5" front wheels. A wider front wheel and tire combination will increase front end grip and close the stagger from front to rear resulting in sharper turn-in and less understeer. This is one of the easiest and most effective improvements you can make to your Porsche from a handling perspective.

We've optimized the offset of our 9" front wheels to to work well with the stock fenders, however, a wide variety of tire compounds can be used and some may require negative camber to fit properly. See fitment notes under each tire configuration below to see if modifications are required. If you plan to track your car, we highly recommended dialing in negative camber regardless of whether your wheel/tire fitment requires it for fender clearance. Negative camber is vital for extracting the most performance and longevity out of your tires, and without the proper amount the outer shoulders of your tires will wear out prematurely and running tire costs will dramatically increase.

5 Lug Wheels

  • Front: 18x9” ET46 // Rear: 18x12” ET63 or ET65
    • Available in: SM-10, EC-RS, VS-5RS
    • Popular fitment

Tires

  • APEX Staff Pick: Front: 245/40-18 // Rear: 305/35-18
    • Typically a direct fit, but we encourage a little additional negative camber up front
    • Max Performance Summer: No options currently available
    • Extreme Performance Summer: No options currently available
    • R-Compound: Nitto NT01 (100 TW), Toyo R888R (100 TW)
  • Alternative: Front: 255/35-18 // Rear: 315/30-18
    • A minimum of -2º of front camber is recommended with camber plates
    • Max Performance Summer: No options currently available
    • Extreme Performance Summer: Falken RT660 (200 TW), Yokohama A052 (200 TW), Nankang CR-1 (200 TW)
    • R-Compound: Toyo R888R (100 TW), Nankang AR-1 (100 TW)

5 Lug Wheels

  • Front: 19x9” ET50 // Rear: 19x12” ET63 or ET65
    • Available in: SM-10, EC-7RS, VS-5RS
    • Popular fitment

Tires

  • APEX Staff Pick: Front: 245/35-19 // Rear: 305/30-19
    • Direct fit
    • Max Performance Summer: Michelin Pilot Sport 4S (300 TW), Continental Extremecontact Sport 02 (340TW)
    • Extreme Performance Summer: Michelin Cup 2 240 Connect (240 TW), Falken RT660 (200 TW), Goodyear Supercar 3 (220 TW), Nankang CR-1 (200 TW)
    • R-Compound: Michelin Cup 2 (180 TW), Toyo R888R (100 TW), Nankang AR-1 (100 TW)
  • Alternative: Front: 245/35-19 // Rear: 325/30-19
    • Direct fit
    • Factory 997.2 GT3RS tire sizes
    • Max Performance Summer: Michelin Pilot Sport 4S (300 TW)
    • Extreme Performance Summer: Michelin Cup 2 240 Connect (240 TW), Goodyear Supercar 3 (220 TW)
    • R-Compound: Michelin Cup 2 (180 TW), Toyo R888R (100 TW), Nankang AR-1 (100 TW), Pirelli Trofeo R (60TW)
  • Alternative: Front: 245/35-19 // Rear: 315/30-19
    • Direct fit
    • Max Performance Summer: Michelin Pilot Sport 4S (300 TW)
    • Extreme Performance Summer: Falken RT660 (200 TW)
    • R-Compound: Michelin Cup 2 (180 TW)

Centerlock Wheels

  • Front: 19x9” ET47 // Rear: 19x12” ET63
    • Available in: VS-5RS
    • Popular fitment

Tires

  • APEX Staff Pick: Front: 245/35-19 // Rear: 305/30-19
    • Direct fit
    • Max Performance Summer: Michelin Pilot Sport 4S (300 TW)
    • Extreme Performance Summer: Michelin Cup 2 240 Connect (240 TW), Falken RT660 (200 TW), Goodyear Supercar 3 (220 TW), Nankang CR-1 (200 TW)
    • R-Compound: Michelin Cup 2 (180 TW), Toyo R888R (100 TW), Nankang AR-1 (100 TW)
  • Alternative: Front: 245/35-19 // Rear: 325/30-19
    • Direct fit
    • Factory 997.2 GT3RS tire sizes
    • Max Performance Summer: Michelin Pilot Sport 4S (300 TW)
    • Extreme Performance Summer: Michelin Cup 2 240 Connect (240 TW), Goodyear Supercar 3 (220 TW)
    • R-Compound: Michelin Cup 2 (180 TW), Toyo R888R (100 TW), Nankang AR-1 (100 TW), Pirelli Trofeo R (60TW)
  • Alternative: Front: 245/35-19 // Rear: 315/30-19
    • Direct fit
    • Max Performance Summer: Michelin Pilot Sport 4S (300 TW)
    • Extreme Performance Summer: Falken RT660 (200 TW)
    • R-Compound: Michelin Cup 2 (180 TW)

Hardcore Track Wheel Fitment

Track focused fitments that require significant modifications

These wheel and tire configurations are best suited for hardcore track junkies and club racers competing for a spot on the podium. Everything from Extreme Summer tires to full Racing Slicks are commonly used depending on your experience behind the wheel, class rules, etc. Most notably, these fitments incorporate wider 9” front wheels (or 10" wide if you are real hardcore) which provide superior tire sidewall support over the stock 8.5" front wheels. A wider front wheel and tire combination will increase front end grip and close the stagger from front to rear resulting in sharper turn-in and less understeer. This is one of the easiest and most effective improvements you can make to your Porsche from a handling perspective.

We've optimized the offset of our 9" front wheels to to work well with the stock fenders, however, a wide variety of tire compounds can be used and some may require negative camber to fit properly. See fitment notes under each tire configuration below to see if modifications are required. If you plan to track your car, we highly recommended dialing in negative camber regardless of whether your wheel/tire fitment requires it for fender clearance. Negative camber is vital for extracting the most performance and longevity out of your tires, and without the proper amount the outer shoulders of your tires will wear out prematurely and running tire costs will dramatically increase.

5 Lug Wheels

  • Front: 18x9” ET46 // Rear: 18x12” ET63 or ET65
    • Available in: SM-10, EC-7RS, VS-5RS
    • Popular fitment

Tires

  • APEX Staff Pick: Front: 245/40-18 // Rear: 305/35-18
    • Typically a direct fit, but we encourage a little additional negative camber
    • Extreme Performance Summer: No options currently available
    • R-Compound: Nitto NT01 (100 TW), Toyo R888R (100 TW)
    • Semi-Slick: No options currently available
  • Alternative 1: Front: 255/35-18 // Rear: 315/30-18
    • A minimum of -2º of front camber is recommended with camber plates
    • Extreme Performance Summer: Falken RT660 (200 TW), Yokohama A052 (200 TW), Nankang CR-1 (200 TW)
    • R-Compound: Toyo R888R (100 TW), Nankang AR-1 (100 TW)
    • Semi-Slick: Hoosier R7 & A7 (40 TW)
  • Alternative 2: Front: 245/35-18 // Rear: 315/30-18
    • Typically a direct fit, but we encourage a little additional negative camber
    • Extreme Performance Summer: Continental Extremecontact Force (200 TW)
    • R-Compound: No options currently available
    • Semi-Slick: Hoosier R7 & A7 (40 TW)
  • Alternative 3: Front: 245/645-18 // Rear: 305/660-18
    • A minimum of -2.5º front & -2.2º rear camber is recommended
    • Racing Slick: Pirelli DH
  • Alternative 4: Front: 265/645-18 // Rear: 315/680-18
    • A minimum of -3º front & -2.2º rear camber is recommended via camber plates
    • Racing Slick: Pirelli DH
  • Alternative 4: Front: 265/645-18 // Rear: 325/660-18
    • A minimum of -3.5º front & -2.2º rear camber is recommended via camber plates
    • Racing Slick: Pirelli DH

5 Lug Wheels

  • Front: 18x10” ET36 // Rear: 18x12” ET63 or ET65
    • Available in: SM-10, EC-7RS, VS-5RS
    • Cup ront fender flares are required
    • Caster values need to center the wheel for maximum clearance
    • Motorsport oriented coilovers with a slim silhouette required for maximum clearance
    • Massaging plastic fender liners is suggested and tire may still rub at full lock

Tires

  • APEX Staff Pick: Front: 275/35-18 // Rear: 335/30-18
    • A minimum of -3.5º front & -2.2º rear camber is recommended
    • Extreme Performance Summer: BFG Rival S 1.5 (200 TW)
    • R-Compound: Nitto NT01 (100 TW), Toyo R888R (100 TW)
    • Semi-Slick: Hoosier R7/A7 (40 TW)
  • Alternative 1: Front: 265/35-18 // Rear: 315/30-18
    • A minimum of -3.5º front & -2º rear camber is recommended
    • Extreme Performance Summer: Yokohama A052 (200 TW), Falken RT660 (200 TW)
    • R-Compound: Toyo R888R (100 TW)
    • Semi-Slick: No options currently available 
  • Alternative 2: Front: 275/35-18 // Rear: 315/30-18
    • A minimum of -3.5º front & -2º rear camber is recommended
    • Extreme Performance Summer: Falken RT660 (200 TW), BFG Rival S 1.5 (200 TW), Continental Extremecontact Force (200 TW)
    • R-Compound: Nitto NT01 (100 TW), Toyo R888R (100 TW)
    • Semi-Slick: Hoosier R7/A7 (40 TW)
  • Alternative 4: Front: 265/645-18 // Rear: 315/680-18
    • A minimum of -3.5º front & -2.2º rear camber is recommended
    • Racing Slick: Pirelli DH
  • Alternative 4: Front: 275/645-18 // Rear: 315/680-18
    • A minimum of -3.5º front & -2.2º rear camber is recommended
    • Racing Slick: Pirelli DH
  • Alternative 4: Front: 265/645-18 // Rear: 325/660-18
    • A minimum of -3.5º front & -2.2º rear camber is recommended
    • Racing Slick: Pirelli DH

Wheels

  • Front: 19x9” ET50 // Rear: 19x12” ET63 or ET65
    • Available in: SM-10, EC-7RS, VS-5RS
    • Popular fitment

Tires

  • APEX Staff Pick: Front: 245/35-19 // Rear: 305/30-19
    • Direct fit
    • Extreme Performance Summer: Michelin Cup 2 240 Connect (240 TW), Falken RT660 (200 TW), Goodyear Supercar 3 (220 TW), Nankang CR-1 (200 TW)
    • R-Compound: Michelin Cup 2 (180 TW), Toyo R888R (100 TW), Nankang AR-1 (100 TW)
    • Semi-Slick: No options currently available
  • Alternative 1: Front: 245/35-19 // Rear: 325/30-19
    • Direct fit
    • Factory 997.2 GT3 tire sizes
    • Extreme Performance Summer: Michelin Cup 2 240 Connect (240 TW), Goodyear Supercar 3 (220 TW)
    • R-Compound: Michelin Cup 2 (180 TW), Toyo R888R (100 TW), Nankang AR-1 (100 TW), Pirelli Trofeo R (60TW)
    • Semi-Slick: No options currently available
  • Alternative 2: Front: 245/35-19 // Rear: 315/30-19
    • Direct fit
    • Extreme Performance Summer: Falken RT660 (200 TW)
    • R-Compound: Michelin Cup 2 (180 TW)
    • Semi-Slick: No options currently available
  • Alternative 3: Front: 235/35-19 // Rear: 315/30-19
    • Direct fit
    • Extreme Performance Summer: Continental Extremecontact Force (200 TW)
    • R-Compound: Michelin Cup 2 (180 TW)
    • Semi-Slick: Hoosier R7 & A7 (40 TW)

Centerlock Wheels

  • Front: 19x9” ET47 // Rear: 19x12” ET63
    • Available in: VS-5RS
    • Popular fitment

Tires

  • APEX Staff Pick: Front: 245/35-19 // Rear: 305/30-19
    • Direct fit
    • Extreme Performance Summer: Michelin Cup 2 240 Connect (240 TW), Falken RT660 (200 TW), Goodyear Supercar 3 (220 TW), Nankang CR-1 (200 TW)
    • R-Compound: Michelin Cup 2 (180 TW), Toyo R888R (100 TW), Nankang AR-1 (100 TW)
    • Semi-Slick: No options currently available
  • Alternative 1: Front: 245/35-19 // Rear: 325/30-19
    • Direct fit
    • Factory 997.2 GT3 tire sizes
    • Extreme Performance Summer: Michelin Cup 2 240 Connect (240 TW), Goodyear Supercar 3 (220 TW)
    • R-Compound: Michelin Cup 2 (180 TW), Toyo R888R (100 TW), Nankang AR-1 (100 TW), Pirelli Trofeo R (60TW)
    • Semi-Slick: No options currently available
  • Alternative 2: Front: 245/35-19 // Rear: 315/30-19
    • Direct fit
    • Extreme Performance Summer: Falken RT660 (200 TW)
    • R-Compound: Michelin Cup 2 (180 TW)
    • Semi-Slick: No options currently available
  • Alternative 3: Front: 235/35-19 // Rear: 315/30-19
    • Direct fit
    • Extreme Performance Summer: Continental Extremecontact Force (200 TW)
    • R-Compound: Michelin Cup 2 (180 TW)
    • Semi-Slick: Hoosier R7 & A7 (40 TW)

Wheels

  • Front: 19x9.5" ET45 // Rear: 19x12" ET63
    • Available in: VS-5RS
    • RS front fender flares are required
    • Caster values need to center the wheel for maximum clearance
    • Motorsport-oriented coilovers with a slim silhouette with camber plates are required for maximum clearance
    • Massaging plastic fender liners is suggested and tire may still rub at full lock

Tires

  • APEX Staff Pick:Front: 265/35-19 // Rear: 325/30-19
    • Typically a direct fit, but we encourage a minimum of -2º camber up front
    • Max Performance Summer:Michelin PS4S (300 TW)
    • Extreme Performance Summer:Goodyear Eagle Supercar 3 (220 TW), Continental Extremecontact Force (220 TW)
    • R-Compound:Nankang AR-1 (100 TW), Michelin Cup 2 (180 TW), Toyo R888R (100 TW)
    • Semi-Slick:Hoosier R7 & A7(40 TW)

Additional Resources

Big Brake Kit Clearances

We have tested many brake kits with the wheels listed in this guide. Please email us with any questions related to brake clearance, we’ll be happy to help.

Still have questions?

Fill out our Fitment Recommendation form Call us: 925-245-0773 Email us: support@apexraceparts.com