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Valvetronic designs BMW G80 M3 G82 M4 G87 M2 catted downpipe complete }
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BMW G8X M2 / M3 / M4 EPA-Compliant 400 Cell Catted Downpipes Give your S58-powered BMW a...
Product Type: Catted Downpipe
Regular price
$2,199.99
Regular price
$2,249.99
Sale price
$2,199.99
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Valvetronic Designs BMW G80/G82/G83/G87 M2 / M3 / M4 400 Cell Catted Downpipes
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BMW G8X M2 / M3 / M4 EPA-Compliant 400 Cell Catted Downpipes

Give your S58-powered BMW a sharper, freer-flowing exhaust setup without sacrificing street-focused emissions compliance. These 400 cell catted downpipes are designed for the G8X M2, M3, and M4 platform, helping reduce factory restriction while keeping the car refined enough for daily use.

Built around high-flow 400 cell catalyst cores, these downpipes improve exhaust flow after the turbos, helping the S58 breathe with less backpressure. The result is stronger turbo response, a more pronounced exhaust note, and a cleaner transition into the upper RPM range.

Unlike overly aggressive catless setups, these EPA-compliant catted downpipes keep the car more usable on the street while still delivering the added sound, response, and performance feel enthusiasts want from the G8X platform.

Key Features

  • EPA-compliant 400 cell high-flow catalytic converters

  • Designed for BMW G8X M2, M3, and M4 models with the S58 engine

  • Helps reduce exhaust backpressure after the turbos

  • Improves turbo response and mid-range power delivery

  • Adds a deeper, more aggressive exhaust tone

  • Enhances turbo spool sound and high-RPM character

  • Premium stainless steel construction

  • Mandrel-bent tubing for smooth exhaust flow

  • Precision TIG-welded for strength and durability

  • OEM-style sensor placement

  • Direct bolt-on fitment using factory mounting points

  • Pairs well with stock or Valvetronic exhaust systems

Sound & Performance

With the factory exhaust, these downpipes add more depth, volume, and turbo presence without making the car feel excessive. When paired with a Valvetronic exhaust system, the sound becomes much more aggressive, with stronger spool acoustics, sharper crackles, and a more defined performance tone.

Built for the S58 Platform

The S58 twin-turbo inline-6 responds well to reduced exhaust restriction. These downpipes are engineered to support higher exhaust flow while maintaining catalyst efficiency, making them a strong upgrade for drivers who want better response, more sound, and long-term reliability under spirited driving conditions.

Fitment

Fits BMW G8X M2, M3, and M4 models equipped with the S58 twin-turbo inline-6 engine.

Professional installation is recommended.

If you have any fitment questions, please feel free to reach out to our team via the contact methods below. If you are contacting us for any order status updates, please give us a call, or email us. We are a lean operation bringing you the best shopping experience possible. We are working on your orders as quickly as we can. We thank you for your patience.

Call:
Please reach out to us at (310) 231-0292 for sales inquiries if you are in the United States, Canada, Mexico.
Email:
For more in-depth product questions, fitment questions, product inquiries please email our performance specialists at online@autotalent.com.
All other inquiries:
Please direct your inquiries to the chat functionality on our website.

Returns Policy

If a product is ordered and not wanted, the UNUSED item can be returned for a 25% restocking fee unless otherwise specified. In some cases, we may offer the ability to return the item to us for a lesser restocking fee and then keep the balance as a store credit. To return an item, it must be in brand new condition with original packaging.

We cannot accept a return on special ordered or custom items.

Shipping is non refundable in either direction unless approved by AutoTalent. All items wanting to be return MUST be reported within 30 days of the original invoice date. No items will be returnable after 30 days. All products shipped from the AutoTalent facility are shipped via FedEx, USPS, or USPS. Some packages shipped from the manufacturer may or may not require signatures for package release.

Special Order Items

Some items may be special order specifically for the customer’s vehicle. These items generally require a deposit or paid in full. Once this deposit amount is notified to the customer and they agree to order the special order item, the deposit becomes non-refundable. These special order items cannot be returned or resold. Cancellations are not allowed on special order parts.

AutoTalent DOES NOT REFUND SHIPPING CHARGES. If you modify, install, or alter the item in any form, we cannot accept it as a return. We will not cover any expenses related to the product or installation, and you may be required to purchase a replacement.

** All cancellations that are requested that are NOT due to items not being in stock or delayed by the manufacturer are subject to a 5% processing fee. When you place an order with us we pay credit card fees that are NOT returned back to us. We will absorb these fees if we do not have the item in stock OR if you agree to the original ETA and that ETA is NOT met. If you decide to cancel for any other reason you will not receive this 5% fee back

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based.

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