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Valvetronic Designs Valved Sport Exhaust System for G8x BMW M3 / M4

Valvetronic Designs Valved Sport Exhaust System for G8x BMW M3 / M4

Valvetronic Designs Valved Sport Exhaust System for G8x BMW M3 / M4

Price range: $1,499.00 through $3,199.00

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Valvetronic Designs’ 3.5″ equal-length mid-pipe with optional valved axle-back (T304 or Grade 5 Ti) delivers a higher-pitched, refined, controllable S58 note—compatible with OEM/free-flow pipes and engineered to avoid CELs.

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SKU: N/A Categories: Exhaust, Exhaust Systems Vehicle: BMW, BMW 3 Series, BMW 4 Series, BMW M3, BMW M4, Brand: Valvetronic Designs

This item and any similar items are not CARB approved and therefore not for sale in the state of California or other states that require CARB certification. No assessment is being made regarding this product's compliance with the EPA's anti tampering policy, only that the necessary testing and validation has not been completed. Please check with your local enforcement officials regarding legality of use in your place of residence.

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Description

Valvetronic Designs Valved Sport Exhaust System for G8x BMW M3 / M4

Valvetronic Designs’ exhaust for the BMW G80 M3 and G82–G83 M4 pairs a single 3.5-inch equal-length mid-pipe with an optional valved axle-back in T304 stainless or Grade 5 titanium, elevating the S58’s soundtrack with a higher-pitched, refined note. The mid-pipe unlocks character without requiring changes to the OEM rear section, while the Valvetronic valved axle-back adds greater presence and control. Compatible with OEM downpipes or free-flow front pipes, the system is engineered to avoid check-engine lights.

Why It Works

Valvetronic Designs’ equal-length architecture balances exhaust pulses for a smoother, higher-frequency tone, while the single 3.5-inch mid-section is optimized for flow to enhance response and power across the rev range. Its modular layout pairs seamlessly with OEM or aftermarket rear sections, with a straightforward upgrade path to Valvetronic Designs’ valved axle-back at any time.

Sound and Control

Valvetronic Designs’ system delivers a noticeably crisper, more engaging tone with stock downpipes and no drone. Paired with the optional valved axle-back, its quad-chamber muffler and OEM-style valves provide daily-driver civility with the valves closed and an aggressive, motorsport edge when opened at the touch of a button. The system is engineered to avoid check-engine lights.

Features

Constructed of the highest quality T304 Stainless steel or Grade-5 titanium
Fully mandrel bend for maximum flow
Electronic valves operated via controller, OEM integration supported
Precision tig welds for high strength
Connects to OEM downpipes
Valved axle-back with controller and tips are optional

Specifications

Materials: T304 brushed stainless steel or Grade-5 titanium
Tips: Premium double-wall or single wall tips included
Valves: Electronic valves operated via controller, OEM integration supported
Tubing diameter:
- Mid-pipe: 3.5″
- Axle-back: 2.75″
Weight savings (vs OEM):
- Titanium: –57.8lb
- Stainless Steel: –24.7lb

What’s Included

Single 3.5″ equal-length mid-pipe assembly
Cross brace
Hardware and clamps

Applications

BMW M3: G80 (2020-Present) [3.0L I6 tt S58]
BMW M4: G82, G83 (2020-Present) [3.0L I6 tt S58]

Notes

Mid-pipe and axle-back can be installed independently
When installing only a mid-pipe or axle-back, make the rear-section cut at the second dimple on the OEM pipe to ensure proper fitment
V1 / V2 components are not compatible with V3
The V3 mid-pipe includes additional clearances at the downpipe connection and mid-section; small visible gaps prior to tightening are normal and by design

About Valvetronic Designs

Valvetronic Designs, based in Boyertown, Pennsylvania, is a leader in high-performance exhaust systems, dedicated to innovation, precision, and enhancing the driving experience. Specializing in bespoke solutions for luxury and performance vehicles such as Lamborghini, Ferrari, and Porsche, Valvetronic combines advanced engineering with meticulous craftsmanship to deliver unparalleled sound and performance. With proprietary technologies like free-flow configurations and double X-pipe designs, their exhaust systems set new benchmarks for exotic and race-inspired tones. Every product is designed and manufactured in-house, ensuring exceptional quality and tailored customization, from fitment precision to sound profiles. Driven by a passion for excellence, Valvetronic Designs strives to create the ultimate auditory and performance experiences for automotive enthusiasts worldwide.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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