RS Coilovers with Front Air Cups [for 2017+ Honda Civic Si & 2018+ Honda Accord]
RS Coilovers with Front Air Cups [for 2017+ Honda Civic Si & 2018+ Honda Accord]
Couldn't load pickup availability
Transform your Civic Si or Accord's ride quality and stance with D2 Racing's RS Coilovers paired with pneumatic air cups. This system delivers genuine performance suspension tuning with the added versatility of instant ride-height adjustment, perfect for daily drivers who want aggressive lowering without sacrificing practicality. The CNC-machined aluminum air cups raise your vehicle up to 2 inches in seconds, giving you the clearance to tackle speed bumps and driveways while maintaining a show-quality stance.
Whether you're hitting a local meet or navigating tight parking situations, the air suspension technology lets you drop for shows and raise for the road, all without leaving your seat. This is genuine performance engineering that doesn't compromise on real-world usability.
- Fitment: Fits 2017+ Honda Civic Si (FK8), 2018–2021 Honda Accord (CT)
- Easy Install: Simply bolt the air cups to the front of your D2 RS Coilovers and connect the 3/8 inch air line fittings to your air system.
- Material: CNC-machined billet aluminum construction with double-sealed pistons built to last through countless adjustments and daily use.
- Includes: Pair of pneumatic air cups with 3/8 inch air line fittings, designed for front-end compatibility with D2 RS Coilovers.
- Note: Requires external air compressor or air suspension kit (not included). Air cups are front-mounted only.
Warranty Info
Warranty Info
We believe in the quality of our products, that's why we provide a 1-year warranty on our mods.*
If you have any issues or would like to contact us about your warranty, please contact us through email here.
*1-Year Warranty on all products UNLESS specified.
Shipping Info
Shipping Info
Free Shipping On Orders Over $200!*
Products shipped from manufacturers (GReddy, Seibon, etc.) may require additional shipping and handling fees.
Processing & Handling:
· 1-2 Business Days
Transit Time:
· 3-7 Business Days
Logistics Handled By:
· USPS, UPS, FEDEX, DHL, GROUND
Tracking Numbers:
Tracking will be emailed to you once your order ships. If you have not received a tracking email from us after 7 days, please contact us to look up your order status.
Where Do We Ship From?
All of our products are shipped out from USA warehouses to ensure premium quality and fast fulfillment. In the rare case that an item is out of stock or unavailable locally, we may ship directly from an international manufacturer using express air freight. Any additional shipping charges will be covered by us in this case.
International Shipping:
We proudly ship select products worldwide and have customers all around the globe.
*For some oversized items, additional shipping charges may be required for international shipments and non lower 48 USA states & territories (Hawaii, PR, Guam etc..) If you are shipping internationally or outside of the lower 48 USA states please contact us to double check shipping costs and availability*
Questions?
Contact us here.
Vehicle Fitment
Vehicle Fitment
If you are unsure if this product will fit your vehicle please contact us!
Email: hello@ultimatemotorsports.co
Return Policy
Return Policy
Don't love your new mod? We'll take it back w/ no hassle.
We have a 30-day return policy, which means you have 30 days after receiving your mod to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging.
To start a return, you can contact us at hello@ultimatemotorsports.co. If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
All returns are subject to a 20% restocking fee unless stated otherwise.
You will be responsible for paying for your own shipping costs for returning your item unless the item was damaged/wrong/defective in which case we will cover shipping both ways. Initial shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.
If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item and take zero responsibility for any loss or damage during the return shipping.
International/Overseas Refunds
Customers outside of the lower 48 United States are subject to all return/exchange shipping and handling fees. International/Overseas orders may not be eligible for refunds due to increased international shipping fees.
See our full return policy here.

INSTALLED ON REAL BUILDS
OUR PARTNERS
-
HATE WAITING?
We know you're excited to get your mods in. That's why we have 5-9 day USA shipping.
Because nobody likes waiting. Especially when it's new car parts.
-
HAVE A QUESTION?
Just like you, we love modding our Civics. So we're here to help with your installation process, order issues, parts fitment, and any questions you have. Reach out via email and we'll reply as soon as we can.
Email: hello@ultimatemotorsports.co
-
WHY CHOOSE ULTIMATE?
We guarantee that you'll love our mods. If not, we have simple and fast returns, a 365-day warranty, and a dedicated team to help you take your build to the next level. That's The Ultimate Guarantee.