IRL G90 G99 MaxFlow Primary 400 Cel Downpipes
IRL MaxFlow Race Downpipes for BMW G90 & G99 M5
Unleash the full performance of your BMW G90/G99 M5 with the IRL MaxFlow Race Downpipes, engineered to maximize exhaust flow, improve turbocharger efficiency, and deliver the aggressive sound the S68 twin-turbo V8 deserves. By significantly reducing exhaust backpressure, the IRL MaxFlow Race Downpipes provide faster turbo spool, sharper throttle response, and increased horsepower and torque throughout the powerband.
Manufactured from premium 304 stainless steel, each downpipe features precision TIG welds, smooth mandrel bends, and CNC-machined flanges to ensure exceptional durability, leak-free performance, and OEM-quality fitment. Designed as a direct bolt-on replacement for the factory downpipes, installation requires no permanent modifications.
The IRL MaxFlow Race Downpipes transform both the performance and character of the G90/G99 M5, producing a deeper, more aggressive exhaust note while allowing the S68 engine to breathe as intended. Whether you’re running a factory tune or a high-performance calibration, these downpipes provide the airflow needed to support substantially higher power levels.
Features:
- Designed specifically for the BMW G90 & G99 M5 (S68 Twin-Turbo V8)
- High-flow race design for maximum exhaust performance
- Premium 304 stainless steel construction
- Precision TIG-welded with mandrel-bent tubing
- CNC-machined flanges for an OEM-quality seal
- Reduced exhaust backpressure for improved turbo efficiency
- Faster turbo spool and enhanced throttle response
- Increased horsepower and torque potential
- Aggressive, refined exhaust tone
- Direct bolt-on installation with OEM-style fitment
- Built for high-performance street and off-road competition applications
Maximum Flow. Maximum Performance. No Compromises. The IRL MaxFlow Race Downpipes are engineered for enthusiasts looking to unlock every bit of performance from the BMW G90/G99 M5.
It is a violation of Federal and Illinois State laws to use this product in a manner inconsistent with it’s labeling. Our products are "Legal Only For Racing Vehicles Which May Never Be Used, Or Registered or Licensed For Use, Upon A Highway."
Ships within 1-2 business days.
100% Genuine Parts
Fitment Guaranteed
IRL G90 G99 MaxFlow Primary 400 Cel Downpipes
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
-
Fast Shipping
1-2 days processing
4-5 days delivery -
Secure payment
Fast, safe, and secure payments you can trust.
-
Customer Support
Count on our 24/7 support -
here whenever you need us! -
Contact Us
Leave us a message at: +17034100852 or email us at: sales@turbotechperformance.com
Premium Parts
Fitment Guaranteed
FAQs
Please read our FAQs page to find out more.
Are OEM products more expensive than aftermarket alternatives?
OEM products might have a higher upfront cost compared to aftermarket parts, but their superior quality and durability often make them a more cost-effective choice over time. Investing in OEM ensures you’re getting parts specifically designed for your vehicle, which can lead to better performance and longevity.
Can I purchase OEM parts online or do I need to visit a dealership?
You don’t need to visit a dealership to get OEM parts. You can conveniently purchase genuine OEM components from authorized distributors and reputable online retailers like Turbo Tech Performance. Our online store provides a wide selection of high-quality parts delivered straight to your door.
Are parts from brands like Mopar, ACDelco, and Motorcraft interchangeable between different vehicle brands?
No, parts from Mopar, ACDelco, and Motorcraft are typically designed for specific vehicle brands. It’s crucial to ensure compatibility with your vehicle’s make and model by checking part numbers and consulting with a knowledgeable expert.
Can I install OEM parts myself, or is it better to have a professional handle it?
While some OEM parts can be installed by DIY enthusiasts, the complexity of installation can vary. For the best results and to ensure proper fitment and performance, we recommend having a trained mechanic install the parts, especially if you’re unfamiliar with automotive repairs.
Do OEM parts come with a warranty?
Yes, many OEM auto parts come with a manufacturer’s warranty that covers defects or issues. Be sure to check the warranty details for each part at the time of purchase, and keep your receipt for any potential warranty claims.