Valvetronic Designs Valved Exhaust Catback BMW G29 Z4 M40i
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Returns accepted within 30 days | support@digipbestlanet.com
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Total: $4,799.00
Valvetronic Designs Valved Exhaust Catback BMW G29 Z4 M40i - Chrome
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VIDEO BMW Z4 M40i Valved Exhaust System 3.5" Midpipe, Dual 3" Axle-Back, Vacuum Valves
Overview The Valvetronic Designs Valved Exhaust System for the BMW G29 Z4 M40i is the ultimate upgrade for enthusiasts who demand both performance and versatility. Developed from our extensive R&D on B58-powered platforms—including the Supra and M340i—this system transforms the Z4’s sound and performance, unlocking the true potential of BMW’s celebrated inline-six.
VIDEO
Sound & Control
Valves Open: A rich, aggressive tone with crisp throttle response, pronounced turbo spool, and motorsport-inspired overrun.
Valves Closed: A refined, stock-like sound perfect for long cruises or early-morning starts—ideal when you want performance without the attention.
Performance Engineering
Maximum Flow Design: Single 3.5" midsection transitioning into dual 3" mandrel-bent runs for optimal exhaust scavenging and reduced backpressure.
Balanced Sound Profile: Tuned for a deep, full-bodied note inspired by our acclaimed B58 Supra and M340i systems.
Precision Construction: TIG-welded T304 stainless steel for exceptional durability and corrosion resistance.
VIDEO
Fitment Features
Fully mandrel-bent for maximum flow
Precision TIG welds for high strength
Built from T304 stainless steel
Electronic-actuated valves for rapid and reliable operation
11.1 lbs lighter than the factory exhaust
Beautiful tips to complement the Z4’s styling
100% reversible—return to stock at any time
FAQs
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Is the shipping free?
Yes, we offer free standard shipping on all orders within the United States.
When will I receive my item?
Domestic orders typically arrive within 3-5 business days . Delivery times are estimated and may vary depending on your location, weather conditions, or other unforeseen factors.
Can I change or return my item?
We hope you love your purchase, but if you need to make a change or return your item, we’ve got you covered! You can initiate a return or exchange within 30 days of receiving your order. Please ensure the product is in its original condition and packaging. For more information on our return policy, please visit our Returns & Exchanges page.
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