ACUITY Instruments: Performance Automotive Products

FREE SHIPPING ON ALL ORDERS OVER $100 (U.S. & PR Only)

You have no items in your shopping cart.

We can make yours faster too

Proudly supporting @KevinBoehm and his K20C1-powered 10th Gen Coupe
Shop now
It's time for an upgrade

Free shipping on orders over $100 (restrictions apply)
We know 9th Gens

If your 9th Gen Civic doesn't have our shifting and induction upgrades, you're doing it wrong
Shop now

New Products

ACUITY Short Throw Adapter for the 10th Gen Civic

$ 72.00

-$ 82.00

ACUITY Shifter Rocker Upgrade for the 10th Gen Civic

$ 108.00

-$ 119.00

Shift Boot Collar Upgrade (Turned Stainless Finish)

$ 47.00

-$ 52.00

Shift Boot Collar Upgrade (Matte Black Aluminum Finish)

$ 38.00

-$ 42.00

ACUITY Performance Shifter Centering Spring for the 10th Gen Civic

$ 24.00

-$ 27.00

ACUITY CURL CONTROL Cold Air Intake System for the 9th Gen Civic Si (RBC Intake Manifold)

$ 419.00

-$ 441.00

ACUITY CURL CONTROL Cold Air Intake System for the 9th Gen Civic Si (OEM Intake Manifold)

$ 419.00

-$ 441.00

ACUITY Throttle Pedal Spacer for the GK5 Fit

$ 97.00

-$ 107.00

Fresh Off the Gram

ACUITY Instruments LLC was started by two engineers with backgrounds in F1 and LMP1 racing. ACUITY strives to develop and provide class-leading motorsport products with the rugged construction that circuit racers demand and the refinement that street enthusiasts love. Our goal is to make you fall in love with your car again as you improve its performance with products from ACUITY.