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986 Wheel & Tire Fitment Guide

Vehicle Covered in this Guide
1997-2004 Porsche Boxster, Boxster S. Fitment is identical between all models.

Chassis Introduction
In order to revive Porsche and ease the introduction of their watercooled future, the modern day 914 was born.

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

 

Aggressive Street/HPDE Fitments

Ideal for the driver who wants to fill out the wheel wells with the widest possible rubber and perfectly flush offsets. 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.

Square Setup
The only modern day Porsche that can run a squared setup. To effectively dial out all understeer, this fitment is effective for both weekend and dedicated track warriors who seek to maximize front end grip. The 8.5” front and rear wheel will provide proper sidewall support, induce oversteer, and relies on mild negative camber specifications for proper front fender clearance.

  • Front & Rear: 18x8.5" ET50 with 245/40-18 tires
    • Direct fit.
    • 255/35-18 tires may also be used, but mild negative camber may be required.

 Staggered Setup
Maintains stock-like handling characteristics, tires can only be rotated left to right. Maximizes both front and rear tire width.

  • Front: 18x8.5” ET50 with 235/40-18 tires
    Rear: 18x10” ET36 with 265/35-18 tires
    • Direct fit.

 

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

  • Brembo 1B1.8016A, 355mm 4-pot - fits all
  • Brembo 1M1.8002A, 355mm 6-pot - fits all
  • Brembo 1P1.8503A, 365mm 4-pot - fits all
  • StopTech 83.780.4700.61 355mm 4-pot - fits all
  • StopTech 83.788.6700.71 355mm 6-pot - fits all
  • AP Racing 13.01.10054, 355mm 4-pot - fits all

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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