19-in Forged Alloy Wheels - $2196 + tires

This exclusively designed, lightweight forged wheel set [2] features staggered fitment with 19-inch x eight-inch fronts and 19-inch x nine-inch rears. Recommended tire sizes are 225/35ZR19 and 255/35ZR19, respectively. (Wheels available for RWD only)

Air Intake Assembly - $455

This low-restriction intake [2] and filter assembly is fully compatible with stock engine controls and is emission-legal in all 50 states.

Bilstein Shock Absorber Set - $370 / pair

Developed in cooperation with Bilstein® and available exclusively from F-Sport™, this shock absorber set offers sport-tuned suspension damping without sacrificing ride quality. (RWD only)

Carbon Fiber Engine Cover - $865

Constructed from real carbon fiber, this very light and durable engine cover provides a high-tech appearance underhood. This is a direct replacement for the original cover.

Clutch - $599

The F-Sport™ Clutch Set increases clamping force approximately 15% to handle higher torque capacity and provide improved feel.

Exhaust System - $1470

This system features an all-stainless-steel construction with fully polished mufflers and double-wall exhaust tips. In addition to an outstanding appearance, it delivers a powerful, sport-tuned exhaust sound.

Front Brake Upgrade - $3025

This Front Brake Upgrade [1] provides a firmer pedal feel and helps enhance fade resistance in repeated severe duty use. The kit features six-piston fixed calipers and drilled cast-iron 355 mm diameter rotors with a patented internal fin design mounted on anodized aluminum hats. Low-dust performance brake pads are included, and the upgrade can be used with stock rear brakes or in conjunction with the F-Sport™ Rear Brake Upgrade. (IS 250 AWD requires 18-inch G-Spider or ISP-Mode accessory alloy wheels.)

Lowering Spring Set - $299

This feature lowers the vehicle approximately one inch in the front and rear for a more aggressive appearance and a lower center of gravity. The spring set is engineered to deliver lowered ride height without bottoming out or creating a harsh ride. The feature can be used with either the stock or F-Sport™ Shock Absorber Set.

Quick Shifter - $300

Engineered and machined from billet aluminum, the F-Sport™ Quick Shifter decreases shift throw by approximately 30% for positive shifting.

Rear Brake Upgrade - $2550

Similar in construction to the F-Sport™ Front Brake Upgrade, the Rear Brake Upgrade [1] features four-piston fixed calipers and drilled cast-iron 345 mm diameter rotors. Low-dust performance brake pads are also included. The Rear Brake Upgrade may only be used in conjunction with F-Sport Front Brake Upgrade. (IS 250 AWD requires 18-inch G-Spider or ISP-Mode accessory alloy wheels.)

Rear Chassis Member Brace - $375

Increase structural stiffness in the rear suspension mounts under the chassis ahead of the rear wheels with the F-Sport Under Chassis Brace. This helps limit deflection of the rear suspension, particularly under cornering loads. It replaces the stamped steel OE brace. The F-Sport Brace is constructed of formed high-strength 19mm diameter x 1.7mm wall steel tubing reinforced with laser cut steel plate, TIG welded and finished in F-Sport Blue.

Sway Bar Kit (AWD) - $225

For the AWD model, this includes a larger diameter replacement rear sway bar that offers reduced body roll and flatter cornering. High-durometer rubber bushings are also included to replace the original bushings.

Sway Bar Kit (RWD) - $495

For the RWD model, this includes a set of larger diameter replacement front and rear sway bars that offer reduced body roll and flatter cornering. High-durometer rubber bushings are also included to replace the original bushings.