BMW G29 Z4 M40i Valved Sport Exhaust System
BMW G29 Z4 M40i Valved Sport Exhaust System - (4) Brushed Steel (3.5" Outlet) is backordered and will ship as soon as it is back in stock.
Pickup currently unavailable at LMTLS Auto
Delivery and Shipping
Delivery and Shipping
At LMTLS Auto, we prioritize getting your orders to you in a timely and safe manner. We also understand that accidents can happen during transit, which is why we’ve partnered with Navidium Protection to offer added peace of mind with every purchase.
Please allow up to 48 hours to process and ship your IN-STOCK ORDER. Orders for items that are not in-stock can take much longer. If you have a time sensitive shipment please email us to ensure there are no delays.
Free shipping promotions do not apply to orders shipping to:
Hawaii, Alaska, Puerto Rico and U.S. outlying territories (Guam, Virgin Islands, Etc.), International orders and limited other occasions.
We reserve the right to cancel any order in which the customer does not want to pay the shipping cost difference.
INTERNATIONAL SHIPMENTS
International orders are shipped via USPS FedEx or DHL.
All international shipments may be subject to customs fees, import duties and taxes. These fees are not integrated into the item pricing or shipping charges. These fees are paid by the buyer, upon arrival to its international destination. Any charges associated with the importation of products purchased from LMTLS Auto are the responsibility of the buyer. We do not pre-pay any customs fees, duties or taxes when the shipment arrives to the international destination. Any costs resulting from the refusal to import a product purchased through LMTLS Auto may result in additional charges.
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.
Sound & Control
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Valves Open: A rich, aggressive tone with crisp throttle response, pronounced turbo spool, and motorsport-inspired overrun.
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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
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Maximum Flow Design: Single 3.5" midsection transitioning into dual 3" mandrel-bent runs for optimal exhaust scavenging and reduced backpressure.
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Balanced Sound Profile: Tuned for a deep, full-bodied note inspired by our acclaimed B58 Supra and M340i systems.
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Precision Construction: TIG-welded T304 stainless steel for exceptional durability and corrosion resistance.
Fitment
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2017+ BMW G29 Z4 M40i
Features
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Fully mandrel-bent for maximum flow
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Precision TIG welds for high strength
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Built from T304 stainless steel
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Electronic-actuated valves for rapid and reliable operation
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11.1 lbs lighter than the factory exhaust
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Beautiful tips to complement the Z4’s styling
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100% reversible—return to stock at any time
Payment & Security
Payment methods
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