Ascend CS02 Track Wheels 18x9.5 5x114.3 ET40

Ascend CS02 Track Wheels 18x9.5 5x114.3 ET40 CB73.1

Popular Fitment : 

Honda Civic incl. SI 10th & 11th Gen

Subaru WRX and WRX STI (GR,VA,VB)

Subaru BRZ Gen 1 & Gen 2 

Recommended 18” Performance Setup – Honda Civic (10th & 11th Gen)

This 18x9.5 ET40 square setup is designed for drivers looking to achieve a flush, aggressive stance while maximizing tire width for improved grip and performance.

Depending on the exact setup, minor modifications may be required to optimize clearance and fitment.

Wheel Fitment

Front & Rear: 18x9.5 ET40

Designed to fill out the wheel wells for a more aggressive look
May require minor adjustments depending on suspension and tire choice

Recommended Tire Sizes

255/35-18 – Performance Fitment

• A well-balanced size that offers strong grip and a flush appearance.
• Negative camber is typically recommended to ensure proper clearance and optimal tire wear

245/35-18 – Conservative Fitment

• A slightly narrower option for easier installation and improved clearance.
• Often direct fit on most setups
  Mild negative camber may be required depending on suspension and tire profile

265/35-18 – Maximum Grip Option

• A wider setup for more aggressive builds and track-focused use.
• Negative camber is recommended
  Fender rolling may be required to prevent rubbing under compression

Recommended 18” Performance Setup – Subaru WRX (VA & VB)

This 18x9.5 ET40 square setup is a very popular fitment for WRX and STI models, offering a strong balance of flush appearance, wide tire compatibility, and performance for both street and track use.

Wheel Fitment

Front & Rear: 18x9.5 ET40

Fills out the wheel wells for a flush, aggressive look
Works well with a wide range of performance tire sizes

Recommended Tire Sizes

265/35-18 – Performance Fitment

• A widely used size that delivers excellent grip while maintaining good overall fitment.
• Typically direct fit on most setups
  
• Negative camber is recommended to prevent rubbing under suspension compression, especially with wider or aggressive tire compounds

255/35-18 – Conservative Fitment

• A slightly narrower option that offers easier fitment and improved clearance.
• Generally direct fit with minimal modifications
  
• Suitable for both daily driving and performance use

275/35-18 – Wider Track Option

• For drivers looking for increased grip and a more aggressive setup.
• Negative camber recommended
  
• Fender rolling may be required depending on tire profile and suspension setup

285/30-18 – Maximum Fitment

• An aggressive setup intended for advanced builds and track-focused cars.
• Significant negative camber required
  
• Fender rolling required
  
• Best suited for experienced setups prioritizing maximum tire width

Recommended 18” Performance Setup – Subaru BRZ

This 18x9.5 ET40 square setup is a popular upgrade for the BRZ platform, offering increased tire width, improved grip, and balanced handling for both street and track use.

Wheel Fitment

Front & Rear: 18x9.5 ET40

• Square setup allows for better balance and tire rotation
  
• Designed to support wide performance tire setups

Recommended Tire Sizes

255/35-18 – Performance Fitment

A well-rounded setup that offers strong grip and responsiveness.

• Requires approximately -2.5° camber front & rear
  
• Gen 1: Typically achievable with standard bolt-on suspension mods
  
• Gen 2:  Requires aftermarket suspension and rear quarter panel trimming

265/35-18 – Wider Track Option

For drivers looking to maximize grip.

• Requires approximately -3° camber front & rear
  
• Gen 1: Aggressive but achievable with proper alignment
  
• Gen 2:  Requires suspension upgrades + rear quarter panel trimming

245/35-18 – Conservative Option

A slightly narrower setup for improved clearance.

• Requires approximately -2.5° camber front & rear
  
• Gen 1: More forgiving fitment
  
• Gen 2:  Still requires rear quarter panel trimming

Fitment Notes

Gen 1 (2013–2020):

• More forgiving overall fitment
  
• Primarily requires proper alignment (camber) depending on tire size

Gen 2 (2022+):

• Significantly more aggressive fitment
  
• Requires aftermarket suspension, alignment adjustments, and body modifications (rear quarter panel trimming)
  
• Not recommended for factory suspension setups