Skip to the content

Free Shipping on Orders of $149+ to Lower 48 States

Engine
Suspension
Brakes
Drivetrain
Interior
Exterior
Safety Gear
Wheels & Tires

Search for products

Your cart

Your cart is empty

Engine
Suspension
Brakes
Drivetrain
Interior
Exterior
Safety Gear
Wheels & Tires

User 1

User 1

HKS

HKS RS US CIVIC Si

Delivers to

$506.00

Apex+ member price available

Apex+ Membership

Pay $4.95/mo — Get way more back

Instant perks while your membership is active.

Only $4.95/month

Less than a coffee. Cancel anytime.

$15/month store credit

Issued monthly while you're a member. Use it on almost anything.

Apex+ exclusive 5–15% off

Member-only discounts on select products (stacking rules may apply).

You pay $4.95

→

You get $15 credit

+

Plus 5–15% off

Join Apex+ for $4.95/mo

Store credit issued monthly while active. Discounts vary by product.

or

Loading Affirm Offer... . See if you qualify

HKS RS US CIVIC Si

This product is covered under the Manufacturer's warranty. You can find more info here.

Customer Reviews

Be the first to write a review

0%

(0)

0%

(0)

0%

(0)

0%

(0)

0%

(0)

Vehicle fitment

Our vehicle fitment data should only be taken as a recommendation. It may not be 100% correct. Please double check with the manufacturer to be 100% sure for fitment.

Menu

Contact
Financing & Leasing Information
Returns & Exchanges
Fitment Guarantee
Refund & Exchange Policy
Military/First Responder Discount
Privacy Policy
Terms of Service

Payment methods

Facebook
Instagram

© 2026, Saikospeed - Powered by Shopify