Aftermarket Porsche wheels are highly in demand products by Porsche car owners. There are very important specifications for Porsches that vary drastically from most mainstream car manufacturers. This article can answer many of your common questions related to aftermarket Porsche wheels.
- Most off the shelf aftermarket Porsche wheels will be low pressure cast. This manufacturing method is similar to what Porsche AG uses for their own OEM wheels. While a few wheel models are forged or rotary forged.
- Most OEM wheels are low pressure cast. So it is highly recommended for all Porsche owners to inquire about wheel construction type when considering aftermarket wheels.
- Most of the replica wheels available on the market are gravity cast, which is a step up from your OEM wheels. They will be heavier and less resistant to impacts.
- Low pressure cast wheels often come with pre-determined finishes, widths, offsets and other specifications.
- For customers looking for added customization possibilities and much lighter weight, most forged wheel manufacturers can build a set specifically made for your Porsche.
Most aftermarket Porsche wheel fitments will be in 19″ diameter. While the 996 was built around 18″, the 997 was engineered with 19″ wheels and the new 991 are now engineered around 20″ wheels. The 987 Cayman and Boxster were built around 19″ while the new generation 981 Boxster now comes standard with 20″ wheels. Most of the aftermarket wheel manufacturer will now come out with 20″ variants to suit the newer 991 and 981 bodies.
Widths And Offsets
The wheel widths and offsets provided below are more aggressive than the OEM/stock wheels and push out the wheels towards the fender line, insuring a great looking, flush-to-the-fender fitment with no rubbing involved. All Porsche 911s have narrow body and wide body variants throughout every generation, be it the 996, 997 and 991.
- The narrow body cars are the rear wheel drive variants such as Carrera, Carrera S and early generation GT3. The most comment aftermarket fitment for narrow body 911s will be a 19×8.5 ET45 at the front and a 19×11 ET52 at the rear.
- The wide body variants are mostly all wheel drive 911s such as the C4, C4S and Turbo models. The rear wheel drive GT2 and GT3 RS 997.2 are also built using the wide body. There are 2 main fitments for the wide body 911s, you can go with a standard 19×8.5 ET45 and 19×11 ET40 or step up to an oversized configuration that allows wider tires in 19x9ET48 and 19x12ET45.
As a side note for Porsche Cayman and Boxster 987/981 owners, the 19×8.5 and 19×11 Widebody fitments will fit perfectly on your car!
Hub Bore, Bolt Pattern, Centerlock Wheels CAP And LUG BOLTS
Modern Porsche vehicles all use a 71.6mm hub bore and a 5×130 bolt pattern. Depending on the wheel selected, you can will also either accept Porsche centerlock wheels cap and lug bolts or choose from new Porsche centerlock wheels caps and fitting lug bolts.