EBC Racing does however emphasise that RP-X has been developed for peak on-track performance, meaning higher levels of brake dust and brake noise should be expected. RP-X has comparable disc wear to many other popular track/race materials, however RP-X disc wear is considerably greater than EBC Racings other track pad RP-1 which results in high levels of brake dust. Compared to RP-1, RP-X has a 25 percent increase in friction coefficient across its working temperature range with a much more positive initial bite. This characteristic potentially makes RP-X more suitable on heavy or inherently under-servoed vehicles. For light-medium weight vehicles, cars with non EBC Big Brake Kits fitted, or vehicles with no ABS, the less fierce nature of EBC Racings other track material RP-1 may be preferable.
This Part Fits:
Year
Make
Model
Submodel
2021-2022
BMW
330e
Base
2021-2022
BMW
330e xDrive
Base
2019-2022
BMW
330i
Base
2019
BMW
330i GT xDrive
Base
2019-2022
BMW
330i xDrive
Base
2020-2026
BMW
430i
Base
2020,2022
BMW
430i Gran Coupe
Base
2020-2022
BMW
430i xDrive
Base
2020
BMW
430i xDrive Gran Coupe
Base
2020
BMW
440i
Base
2020
BMW
440i Gran Coupe
Base
2020
BMW
440i xDrive
Base
2020
BMW
440i xDrive Gran Coupe
Base
2018
BMW
640i
Base
2018-2019
BMW
640i Gran Coupe
Base
2018
BMW
640i xDrive
Base
2018-2019
BMW
640i xDrive Gran Coupe
Base
2018-2019
BMW
640i xDrive Gran Turismo
Base
2022
BMW
M240i xDrive
Base
2020-2022
BMW
M340i
Base
2020-2022
BMW
M340i xDrive
Base
2021-2026
BMW
M440i xDrive
Base
2022
BMW
M440i xDrive Gran Coupe
Base
2022
BMW
Z4
M40i
2020
BMW
Z4
M40i First Edition
2020-2021
BMW
Z4
sDrive M40i
2019-2022
BMW
Z4
sDrive30i
2021-2022
Toyota
GR Supra
A91 Edition
2021-2022
Toyota
GR Supra
Base
2021-2022
Toyota
GR Supra
Premium
Kies Recommended Products
Recently Viewed Products
Choosing a selection results in a full page refresh.
Opens in a new window.
Edit option
TERMS (REQUIRED)
OFF-ROAD USE POLICY & EMISSIONS COMPLIANCE NOTICE
California Proposition 65 Warning:
This product can expose you to chemicals such as lead and lead compounds, which are known to the State of
California to cause cancer or birth defects or other reproductive harm. For more information, visit
www.P65Warnings.ca.gov.
Under the federal Clean Air Act (42 U.S.C. §7522(a)(3)), it is illegal to manufacture, sell,
install, or use any part that defeats or alters a motor vehicle’s emission control system for use on public
roads. Unless a product has received an Executive Order (EO) from the California Air Resources Board (CARB),
it is not legal for use or installation on any pollution-controlled vehicle driven on public highways.
Civil penalties up to $4,819 per violation per vehicle
Possible criminal penalties under the Clean Air Act
Revocation of registration or smog certification by DMV or local authorities
State & Local Regulations:
Some states have CARB-equivalent or independent emissions laws. Customers are responsible for verifying local
regulations before purchasing or installing emissions-related products.
Intended Use & Customer Certification:
All performance, racing, or competition parts sold by this company are intended solely for off-road,
closed-course, or competition use on vehicles that are never registered or used on public highways.
Company Policy Statement
Kies Motorsports, LLC sells and markets these products for lawful use only. We do not condone or authorize the
use of emission-control defeat devices or any modification that violates the Clean Air Act or state
regulations.