IRL MaxFlow 200 Cell Race Downpipes – BMW G87 M2 / G80 M3 / G81 M3 Touring / G82 M4 / G83 M4 (S58)
Engineered for enthusiasts who demand maximum performance without sacrificing drivability, the IRL MaxFlow 200 Cell Race Downpipes are designed to unleash the full potential of the BMW S58 platform. Featuring a MaxFlow design and high-flow 200-cell metallic catalytic converters, these downpipes dramatically reduce exhaust restriction, allowing the turbochargers to spool faster while increasing horsepower, torque, and throttle response.
Unlike conventional downpipes that neck down and create unnecessary turbulence, the IRL MaxFlow design maintains smooth exhaust flow throughout the system, reducing backpressure and improving overall engine efficiency. The result is quicker turbo response, increased power throughout the RPM range, and a deeper, more aggressive exhaust note with enhanced turbo sound.
Constructed from premium T304 stainless steel and precision TIG welded, each downpipe is built to withstand extreme temperatures and demanding performance applications. Designed using OEM mounting locations, the IRL MaxFlow Downpipes provide a direct bolt-on installation with factory-like fitment and are compatible with both the factory exhaust and most aftermarket cat-back systems.
Whether paired with factory software or a custom ECU calibration, the IRL MaxFlow 200 Cell Downpipes provide the perfect balance of performance, sound, and durability for your S58-powered BMW.
Features
- MaxFlow design for improved exhaust flow
- Premium 200-cell high-flow metallic catalytic converters
- T304 stainless steel construction
- Precision TIG welded for superior durability
- Increased horsepower and torque
- Faster turbo spool and improved throttle response
- Reduced exhaust backpressure
- More aggressive exhaust tone with enhanced turbo acoustics
- Direct bolt-on installation
- OEM-style fitment with factory mounting points
- Compatible with OEM and most aftermarket exhaust systems
Vehicle Fitment
- BMW G87 M2 (S58)
- BMW G80 M3
- BMW G81 M3 Touring
- BMW G82 M4 Coupe
- BMW G83 M4 Convertible
For Off-Road and Motorsport Use: These high-flow race downpipes are intended for closed-course competition vehicles. Due to differences in vehicle calibration and fuel quality, a check engine light (CEL) may occur on some vehicles. ECU tuning is recommended to maximize performance and optimize catalyst efficiency.
All products are shipped out from one of the Signature Autohaus shipping locations. Signature Autohaus drop ships some products and ships direct others. All products are shipped via FedEx, UPS, DHL or another qualified shipping carrier.
Special arrangements may need to be made for international orders and oversize packages.
In the event a product arrives damaged to your location, please follow the steps listed below. All damaged items must be reported to the shipping carrier immediately and you must notify Signature Autohaus within 5 days of receiving your order. If these steps are not followed, your shipment may not be able to be a candidate for a claim.
Complete the Shipping DAMAGE Claim Form by contacting the carrier that delivered your package.
1) Keep the product and its original packaging and box
Make a list of the damaged or lost item(s)
2) Signature Autohaus will contact the shipper once we receive the email info above to schedule a pickup, DO NOT send it back to us
3) Once the product is picked up and inspected by Signature Autohaus and or Supplier, a replacement or credit will be issued.
4) The Shipping Rates shown at time of checkout our dimensional rate only. If your shipment weight is to much then contact us for a shipping quote. If there is an error in the shipping rate quoted we will contact you and let you know of the changes. International orders(Outside the USA) are not automatically processed as we may require additional information from you.
If a product is ordered and not wanted, the UNUSED item can be returned for a 35% restocking fee. Shipping is not refundable in either direction. 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 Signature Autohaus warehouse are shipped via FedEx or Freight and require a signature when delivered. Some packages shipped from the manufacturer may or may not require signatures for package release. Fedex, UPS, and DHL have package pick up locations if you are unable to sign for the package. If the package is returned to Signature Autohaus or manufacturer, you will be responsible for the return shipping costs and pay a 35% restocking fee. These fees will be charged to your account on file.
SIGNATURE AUTOHAUS DOES NOT REFUND SHIPPING CHARGES. If you modify, install, or alter the item in any form, we cannot accept it as a return, will not cover any expenses related to the product or installation, and you maybe be required to purchase a replacement.
In the event that the product you ordered is sent either incorrectly or processed wrong by Signature Autohaus, we will arrange for the package to come back to us and ship out a replacement. We will evaluate the situation before we determine the shipment was incorrect.
To return a item back to us, please do the following:
1. Contact our Customer Service Department to receive a RMA number. All packages returned without a Returned Merchandise Authorization number will be refused.
2. Package the item up in original packaging unless deemed unuseable
3. Include the UNUSED parts and any additional information that was included
4. Include a copy of your receipt
5. Write a brief description of the problem with the product
6. If you have a receipt for the return shipping include as well
7. We DO NOT accept any freight collect packages
8. Once we have received the above information we will notify you via email or phone and let you know the status.
