The BMW i8 lacks raw sound from the factory. With Valvetronic's full exhaust system, this has been fixed! To achieve a raw and deep sound Valvetronic utilizes a 2.5 inch construction all the way through the system to the exhaust tip. This uncorrupted piping lens itself to a very enjoyable deep sound experience. You get aggressive shift pops on the changes and aggressive overrun when coming off the throttle. The sound is very enjoyable inside and outside the cabin. Be ready to shock some passersby with how good your i8 sounds!
Valvetronic Designs makes premium valved exhaust systems for a wide range of BMWs. These Exhausts are completely handmade right here in the US, at their facility in Chambersburg, PA. Designed with flow and sound in mind, Valvetronic has made a premium system with improved flow and performance, while offering the flexibility of a valved design. While the performance gains are sweet, nothing is sweeter than the thoughtfully curated sound your BMW makes with a Valvetronic Exhaust.
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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.