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BMW G29 Z4 M40i Valved Sport Exhaust System

Price
$2,799.99

|OR|

Tips: (4) Brushed Steel (3.5" Outlet)

BMW G29 Z4 M40i Valved Sport Exhaust System

Tips
Price
(4) Brushed Steel (3.5" Outlet)
Price
$2,799.99
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(4) Burnt (3.5" Outlet)
Price
$2,799.99
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(4) Black (3.5" Outlet)
Price
$2,799.99
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(4) Forged Carbon (3.5" Outlet)
Price
$2,799.99
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(4) 1x1 Carbon Fiber (3.5" Outlet)
Price
$2,799.99
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BMW G29 Z4 M40i Valved Sport Exhaust System
Tips: (4) Brushed Steel (3.5" Outlet)

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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

BMW G29 Z4 M40i Valved Sport Exhaust System

(4) Brushed Steel (3.5" Outlet)

Price
$2,799.99
(4) Brushed Steel (3.5" Outlet)

Questions?

WE HAVE ANSWERS

How long til' I get my order?

Small items arrive to you in under 1 week

Larger products like full suspension kits must ship freight and can take 1-3 Weeks

Are Installation Instructions Included?

Instructions are included for most parts that require any sort of knowledge to install.

Here's what to do if your parts come WITHOUT instructions:

1. Some parts are genuinely common sense on how they get installed

2. If you can't figure it out on your own, YOUTUBE IS YOUR FRIEND! Our founder started this company from learning how to build headlights off a YouTube Video

3. If there are no videos on YouTube, or instructions anywhere on Google then please CALL OR EMAIL US and we will guide you through or get you instructions from the manufacturer

4. Doing installs on your own is always fun, but sometimes, it isn't. Always consider having your parts professionally installed

ALWAYS CONSIDER US. We sold you the parts, let us install them at THE LAB in Connecticut. We offer enclosed and open cross country transportation.

Of course you won't want to spend thousands on transportation to install lug nuts or emblems but if you are spending a LOT of money on parts, you may just want to send the car our way

What is your return policy if the part doesn’t fit or isn’t what I expected?

If the part was NOT installed, we accept returns within 14 days of delivery.

If the part WAS installed (or attempted installation), we cannot accept a return.

Do your parts come with a warranty?

All parts come with Manufacturer Warranty! Each manufacturer has different warranties so we suggest reading up on their warranty policy before ordering.

I found a better price somewhere else, can you beat it?

YES! If you come across a competitor with a lower advertised price than us, we will BEAT it by at LEAST 1%. Please contact us with proof of the lower priced product.

Do you give out discounts or sponsorships?

NO! We do not give out discounts or do sponsorships. You can get 5% OFF your first order by signing up for text & email notifications. OR just wait until our BLACK FRIDAY Sale that happens once a year.