Competition Motorsport
Porsche Alignment Camber Shims
from $8.95
Anodized Aluminum Porsche GT3 Control Arm Shims
Porsche GT3 And Similar Two-Piece Lower Control Arms
Precision laser-cut from 6061-T6 aluminum and anodized for durability, these shims are used to adjust camber by changing length of your Porsche OEM or similarly configured lower control arm (such as these RSS units). Thickness in millimeters is silk screened on each shim for easy sorting.
One degree of negative camber is approximately a 5mm shim.
Competition Motorsport Shims Available in the Following Sizes:
1 mm
3 mm
5 mm
Package Savings:
Enthusiast (two of each shim) save 10%
Racer (four of each shim) save 15%
Team (eight of each shim) save 20%
These fit all two-piece Porsche lower control arms (except 991 GT3/GT3RS rear and 992 front and rear, which use a different shim shape). Shims are priced individually (other than packages). They are typically used in pairs or in multiple-shim combinations. Also fits 981 and 718 Cayman models.
Competition Motorsport Performance shims are used on FRONT and REAR of any Porsche 986/987/996/997 fitted with two-piece lower control arms (commonly referred to as "GT3" control arms) and ONLY FRONT of 991s with two-piece lower control arms.
Competition Motorsport
CMS Performance Five Way Adjustable Sway Bars for Porsche 981/718 Boxster-Cayman (2014+)
from $995.00
Adjustable Sway Bar Kit for Porsche 981/718 Cayman & Boxster
These Sway Bars Fit the Following Cars:
Porsche 981/718 Cayman and Boxster
Porsche 981/718 Cayman S and Boxster S
Porsche 981/718 Cayman GTS and Boxster GTS
Porsche 981/718 Boxster Spyder
Porsche 981/718 Cayman GT4
Porsche 718 Cayman GT4RS
Check out installation instructions here
The Best Suspension Mod Available for the Porsche 981 and 718
Through extensive research and track testing, CMS has engineered the perfect replacement sway bars for the Porsche 981 & 718 Cayman/Boxster (all models) 1. Our engineers took hundreds of laps at racetracks from Road America to COTA, Mid Ohio to High Plains, along with thousands of miles on the street. All to confirm the CMS Performance Sway Bars transform the handling of the Porsche while maintaining the car's everyday driveability and reliability.
Tuned to work with your Porsche's OEM struts and springs (both standard and PASM), the CMS Sway Bars are the best handling improvement you can make to your 981. Based on the sway bars of the GT4, the CMS Performance Sway Bars have five holes of adjustment both front and rear, giving you an unprecedented range within which to tune your car's handling depending on the road or track you're tackling.
Larger Diameter Plus Fine-Tuning Your Porsche's Handling
With larger diameters than the OEM GT4 bars, the CMS Performance Adjustable Sway Bars can be adjusted from slightly softer than stock to substantially stiffer. This lets you fine-tune handling balance from understeer to neutral to oversteer with simple hand tools.
Included are OEM Porsche sway bar bushings, precision-machined for the slightly larger bars, giving you worry-free fitment, OEM quality, and a noise-free installation. CMS Performance Sway Bars are engineered and manufactured in the USA with drop-forged ends for high strength and performance.
Original Cayman GT4 and Boxster Spyder drop links, both front and rear, work perfectly with CMS Performance Sway Bars; no need to replace them.
Base, S, GTS models require CMS front drop links (choose from the options above). These are OEM Porsche front links customized to fit the CMS front sway bar. Your original rear drop links do not need to be replaced.
CMS Performance Adjustable Sway Bars Details:
Diameters of 31.8mm (front) and 25.4mm (rear), 30% larger than the OEM 981 Cayman GT4 bars
Adjustment of each bar goes from 1% softer than stock to 50% stiffer.
Powder-coated Black, Red, Yellow, or Silver for long life and great looks
Designed and manufactured in the USA using all US components
Engineered specifically for the Porsche 981 and 718 chassis
Adjustable Sway Bar Kit Includes the Following:
Front and rear five-way-adjustable sway bars w/ forged ends
OEM Porsche bushings custom-machined to our specifications
Optional: OEM Porsche front drop link set, customized to our specification (required for Base, S, GTS)
Competition Motorsport
Porsche Alignment Camber Shims (992 Front )
from $8.95
Anodized Aluminum Front Camber Shims for Porsche 992 GT3 or Cup Car
Porsche GT3 or Cup Car Front Shims
Precision laser-cut from 6061-T6 aluminum and anodized for durability, these shims are used to adjust camber by changing length of your Porsche OEM or similarly configured lower control arm (such as RSS units). Thickness in millimeters is silk screened on each shim for easy sorting.
One degree of negative camber is approximately a 5mm shim.
Competition Motorsport Shims Available in the Following Sizes:
1 mm
3 mm
5 mm
Package Savings:
Enthusiast (two of each shim) save 10%
Racer (four of each shim) save 15%
Team (eight of each shim) save 20%
These fit all two-piece Porsche lower control arms for 992 GT3/GT3RS front. Shims are priced individually (other than packages). They are typically used in pairs or in multiple-shim combinations.Â
This version of the Competition Motorsport Performance shims are used on 992 FRONT with two-piece lower control arms (commonly referred to as "GT3" control arms).
Competition Motorsport
Porsche Alignment Camber Shims (991 or 992 similar Rear)
from $8.95
Anodized Aluminum Porsche GT3 Rear Control Arm Shims
Porsche GT3 991 or 992 Similar Two-Piece Rear Lower Control Arms
Save 60% vs oem shims!
Precision laser-cut from 6061-T6 aluminum and anodized for durability, these shims are used to adjust camber by changing length of your Porsche OEM or similarly configured lower control arm (such as RSS units). Thickness in millimeters is silk screened on each shim for easy sorting.
One degree of negative camber is approximately 5mm shim.
Competition Motorsport Shims Available in the Following Sizes:
1 mm
3 mm
5 mm
Package Savings:
Enthusiast (two of each shim) save 10%
Racer (four of each shim) save 15%
Team (eight of each shim) save 20%
These fit all two-piece Porsche lower control arms for 991 or 992 GT3/GT3RS rear. Shims are priced individually (other than packages). They are typically used in pairs or in multiple-shim combinations.Â
This version of the Competition Motorsport Performance shims are used on 991 and 992 REAR fitted with two-piece lower control arms (commonly referred to as "GT3" control arms).