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996 Wheel & Tire Fitment Guide

Vehicle Covered in this Guide
1999-2005 Porsche 911, Targa, Convertible, GT3. Fitment is nearly identical throughout all models. 99-01’ may require rear fender roll in some applications to prevent rubbing.

Chassis Introduction
The first new chassis platform since the 911’s inception. With a vastly different powertrain approach came a vastly different chassis and suspension orientation. While the front suspension and rear multi-link rear suspension was revised and retained from its predecessor, the 996 is very capable out of the box. However, major improvements can be made in the wheel and tire department.

Bolt Pattern: 5x130 Thread Pitch: M14x1.5mm Center Bore: 71.6mm

 

OEM+ Fitment

  • Front: 18x8.5” ET50 with 235/40-18 tires
    Rear: 18x11” ET60 with 285/30-18 tires
    • 245/40-18 and 295/30-18 tires may also be used.
    • Rear fender roll may be required for 996.1 dependent on ride height and tire compound

This fitment is a small step up from stock wheels and tires, but offers a noticeable improvement in the performance and aesthetic department. It is ideal for the driver who wants to upgrade to a no-nonsense direct bolt-on fitment, with no modifications required. These wheels offer superior sidewall support for wider tires, and flaunt a lower offset to minimize the need for spacers in comparison to stock.

 

Aggressive Street/HPDE Fitment

  • Front: 18x8.5” ET42 with 235/40-18 tires
    Rear: 18x11” ET60 with 285/30-18 tires
    • 245/40 and 295/30-18 tires may also be used, but will require at least 1.2 degrees of front negative camber.
    • Rear fender roll may be required for 996.1 dependent on ride height and tire compound

This staggered fitment is very similar to the one above, however the front wheels have a more aggressive offset which ultimately place them 8mm closer front fenders; similarly to the beloved 996 GT2. This fitment is ideal for enthusiasts looking for a flush fitment with street tires, or for performance driving enthusiasts who have the ability to dial in negative camber with wider track compounds.

 

Performance Street/Track or Race Fitments

These fitments are effective for both weekend and dedicated track warriors. This no-compromise fitment is ideal for track use where enthusiasts want to maximize front and rear end grip, providing for an incredibly neutral and aggressive setup. The 9” front and 12” rear wheel will provide superior sidewall support for wider tires, and it relies on aggressive negative camber specifications for proper fender clearance. The 9” front and 11” rear wheel setup will minimize the stagger and dial out any remaining understeer. Since you'll be using all available real estate under the fender arches to accommodate this wider configuration, mild modifications are likely necessary. A mixture of negative camber and rolled rear fenders are typically advised to ensure proper utilization of these extreme setups.

  • Front: 18x9” ET46 with 245/40-18 tires
    Rear: 18x11” ET60 with 285/30-18 tires
    • Requires at least 2 degrees of front negative camber.
    • 255/35-18 and 295/30-18 tires may also be used but will require at least 2.5 degrees of front negative camber.
    • 265/35-18 and 305/30-18 tires may also be used but will require at least 3.0 degrees of front negative camber.

  • Front: 18x9” ET46 with 245/40-18 tires
    Rear: 18x12” ET65 with 305/30-18 tires
    • Requires at least 2 degrees of front negative camber.
    • Front 255/35-18 tires may also be used but will require at least 2.5 degrees of negative camber.
    • Front 265/35-18 tires may also be used but will require at least 3.0 degrees of front negative camber.
    • Rear requires negative camber pending ride height and tire compound.
    • Rear 315/30-18 tires may also be used, but will require negative camber.

 

Big Brake Kit ClearancesBrake-Clearance.jpgThe following brake setups have been tested and confirmed to clear: 

  • OEM 380mm 6-pot PCCB - fits 18x8.5" ET42 & 18x9" ET46 only
  • Brembo 1M1.9006A1, 380mm 6-pot - fits 18x8.5" ET42 & 18x9" ET46 only
  • Brembo 1M1.9005A1, 355mm 6-pot - fits all
  • StopTech 83.780.4700.61 355mm 4-pot - fits all
  • StopTech 83.781.6900.XX, 380mm 6-pot - call to confirm

Please email or call us with any other questions related to brake clearance and 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

 

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