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  • BMW G29 Z4 M40i Valved Sport Exhaust System
BMW G29 Z4 M40i Valved Sport Exhaust System
BMW G29 Z4 M40i Valved Sport Exhaust System
BMW G29 Z4 M40i Valved Sport Exhaust System
BMW G29 Z4 M40i Valved Sport Exhaust System
BMW G29 Z4 M40i Valved Sport Exhaust System
BMW G29 Z4 M40i Valved Sport Exhaust System
BMW G29 Z4 M40i Valved Sport Exhaust System
BMW G29 Z4 M40i Valved Sport Exhaust System
BMW G29 Z4 M40i Valved Sport Exhaust System
BMW G29 Z4 M40i Valved Sport Exhaust System
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BMW G29 Z4 M40i Valved Sport Exhaust System

Valvetronic Designs
BMW.Z4.G29.VSES.BR.BRSH
In stock
$2,799.99
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 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. Fitment 2017+ BMW G29 Z4 M40i 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
BMW G29 Z4 M40i Valved Sport Exhaust System
SKU: BMW.Z4.G29.VSES.BR.BRSH
(4) Brushed Steel (3.5" Outlet) - $2,799.99
Product Details

Everything You Need To Know

Review product information, shipping and returns, and price-match details before you order.

Product Info

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

  • 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.

Fitment

  • 2017+ BMW G29 Z4 M40i

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

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In Stock Items:
In stock items typically ship within 1-3 business days. Most items arrive within 2 business days, but there are situations where it may take up to 5 business days.

Special Order Items:
Special order and out of stock items are product-specific and lead times can vary. Please e-mail us if you are looking for an ETA / Lead Time on a specific product. Special order orders are subject to cancellation if the vendor cannot provide any ETA.

Returns Policy

To start the return process, please e-mail sales@allianceracing.com

Include the following:
Subject "Return for Order#"
Order Number
Part Number
Reason

Returns are eligible for up to 14 days from delivery of items. Accepted refunds can take up to 7-10 business days to process. All refunds are subject to a 25% restocking fee, if opened. Customer may be responsible for return shipping. If 14 days have gone by since your item was delivered, unfortunately we can’t guarantee you a refund or exchange. We reserve the right to deny any return request, based on provided information.

Alliance Racing is not responsible for ensuring part fitment. It is the responsibility of the purchaser to ensure the parts being ordered are the correct fitment for the vehicle intended. Alliance Racing will not accept any returns for incorrect fitment after product is opened.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

Shipping

To return your product, mail your product to:
Alliance Racing LLC
8810 Twin Lakes Blvd
Tampa, FL 33614

In many cases, you will be responsible for shipping costs to return your item. Shipping costs are non-refundable. If you receive a refund, the cost of shipping will be deducted from your refund.

Depending on your location, the time it may take for your exchanged product to reach you may vary.

If you are shipping an item over $100, you should consider using a trackable shipping service and/or purchasing Shipping Insurance.

To initiate a price match, please e-mail sales@allianceracing.com with the product information (SKU, URL, & Part Name) and a link to the competitors product page for us to validate the price match eligibility.

Please note that there are cases when we cannot offer a price match, but we will do everything in our power to try to match it. Some manufacturers have Pricing Policies that we have to adhere to.

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