Kies-Motorsports Valvetronic Designs BMW S58 Exhaust Downpipe Flange Gasket – 70mm | G8X M2/M3/M4, F97 X3M/X4M

BMW S58 Exhaust Downpipe Flange Gasket – 70mm | G8X M2/M3/M4, F97 X3M/X4M

BMW S58 Exhaust Downpipe Flange Gasket – 70mm | G8X M2/M3/M4, F97 X3M/X4M

Vendor: Valvetronic Designs

SKU: VTD.FL.GSKT.G8X

Availability: 1000 In stock

$29.99

BMW S58 Exhaust Downpipe Flange Gasket – 70mm | G8X M2/M3/M4, F97 X3M/X4M

$29.99

$29.99

Quantity: Set of 1 Set of 1 Set of 2

Kies-Motorsports Valvetronic Designs BMW S58 Exhaust Downpipe Flange Gasket – 70mm | G8X M2/M3/M4, F97 X3M/X4M

BMW S58 Exhaust Downpipe Flange Gasket – 70mm | G8X M2/M3/M4, F97 X3M/X4M

$29.99

Description

Valvetronic Designs BMW G8X Flange Gasket

70mm Stainless Steel Downpipe Gasket • S58 Twin-Turbo Inline-6

OE Cross Reference: BMW 18308053348 (18 30 8 053 348)

A leak-free exhaust starts with a proper seal. The Valvetronic Designs 70mm Stainless Steel Flange Gasket is a direct-fit replacement for the downpipe flange connection on S58-powered BMW M models. Whether you're installing new downpipes, swapping exhaust components, or servicing your current setup, this gasket ensures a tight, reliable seal that holds up to high exhaust temperatures and boost.

Features

Stainless Steel Construction: Built to withstand extreme heat and repeated heat cycles without breaking down.
70mm Diameter: Precision-sized for the downpipe flange on the S58 platform.
Leak-Free Seal: Prevents exhaust leaks that can cause ticking noises, lost performance, and check engine lights.
Direct Fit: Designed to work with Valvetronic Designs downpipes and exhaust systems as well as factory components.

Fitment

BMW G80 M3 / G82 M4 / G83 M4 Convertible
G87 M2
BMW F97 X3M / F98 X4M

Tip: Always install a new gasket when removing or replacing exhaust components for the best seal.

📩 Questions or fitment confirmation? customerservice@valvetronic.com

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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.

For a complete list of chemicals known to cause harm, visit https://www.p65warnings.ca.gov/chemicals.

EPA / CARB Compliance & Legal Use:

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.

I have read and understood the California Proposition 65 Warning. I have read and understood the EPA/CARB Compliance Notice. I understand these products are intended for off-road or competition use only. I acknowledge that it is my responsibility to comply with all federal, state, and local emissions laws. I understand that installation or use on a public road vehicle is a violation of the Clean Air Act and may subject me to personal liability.

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.

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