Dinan Carbon Fiber Turbo Inlet Pipes (Pair) - BMW F90 M5 / F9X M8 (2018-2025)
SaleThe S63 in your M5 or M8 makes enormous power, then feeds its turbos through a pair of plastic inlets that pinch down right before the compressor. That squeeze is where the engine starts working harder than it needs to. Fix the choke point and the car pulls cleaner all the way to redline.
The Dinan Carbon Fiber Turbo Inlet Pipes replace both factory inlets on the BMW F90 M5 and F91, F92 and F93 M8 with larger, smoother pipes built from gloss UV-coated 2x2 carbon fiber. Dinan quotes a 200% increase in volume over stock, and on a stock car its dyno testing shows peak gains of 22 WHP and 18 lb-ft at 6500 RPM, with an average of +11 WHP and +13 lb-ft from 2000 RPM to redline.
Why Dinan Carbon Fiber Turbo Inlet Pipes Make More Power
Turbos work best when air reaches the compressor without a fight. The factory pipes narrow sharply at the turbo end, raising the pressure ratio each compressor has to overcome. Dinan went through round after round of prototyping to open that path up while keeping the pipes compatible with either the factory airboxes or the Dinan Cold Air Intake. So you can run them on their own now and add the intake later without replacing anything.
At the turbo end, a CNC-machined aluminum adapter locks into the factory quick-connect. You hear the click, and it is sealed. The carbon is real 2x2 twill, not a printed overlay or wrapped plastic, and the UV-resistant gloss coat is there to hold up to under-hood heat.
Dinan Turbo Inlet Pipes Install and Legal Status
This is a bolt-on job of about one hour, with no cutting or drilling. Dinan does not list a tune as required for this part. Know the legal status before you order: it is legal under EPA's Tampering Policy dated November 23, 2020, but it is not legal for sale or use in the State of California. CARB testing is pending and no Executive Order number has been issued. Dinan part number D760-0053. Sold by AutoTecknic, an authorized Dinan dealer.
What's Included
- Two gloss 2x2 twill carbon fiber turbo inlet pipes (one per turbocharger)
- CNC-machined aluminum turbocharger adapters
Key Features
- 200% more volume than the factory turbo inlets, per Dinan
- Dinan dyno result on a stock car: up to 22 WHP and 18 lb-ft at 6500 RPM
- Average gain of +11 WHP and +13 lb-ft from 2000 RPM to redline
- Gloss UV-coated 2x2 twill carbon fiber, not a wrap or overlay
- CNC-machined aluminum adapters use the factory locking system
- Works with the factory airboxes or the Dinan Cold Air Intake
- Bolt-on install, about 1 hour
Vehicle Fitment
Fits the following S63-powered BMW M models:
- BMW M5 / F90 Sedan (2018-2023): M5, M5 Competition
- BMW M8 / F91 Convertible (2020-2025): M8, M8 Competition
- BMW M8 / F92 Coupe (2020-2025): M8, M8 Competition
- BMW M8 / F93 Gran Coupe (2020-2025): M8, M8 Competition
Installation Notes
A confident DIYer with basic hand tools can handle this, and a shop familiar with the F90 platform will be done in about an hour. Work on a cool engine and follow the Dinan instructions included with the kit.
- Let the engine cool completely and remove the engine covers as directed in the instructions.
- Release the factory turbo inlets from the airboxes and the turbocharger quick-connects.
- Fit the aluminum adapters and press each carbon inlet onto its turbo until the factory lock clicks.
- Connect the other end to the factory airbox or Dinan intake and tighten every clamp.
- Reinstall the covers, start the engine and confirm there are no leaks or warning lights.
