BMW X5M F85 and BMW X6M F86 3 inch Decat Downpipes – T304 Stainless Steel, TIG Welded, Performance Exhaust Upgrade
Transform the performance and sound of your BMW X5M F85 or BMW X6M F86 with these 3 inch decat downpipes. Precision machined from T-304 high grade stainless steel and TIG welded in house, these catless downpipes are engineered for the 4.4 twin turbo S63R N63N 575 bhp engine. If you are searching for BMW X5M downpipes, BMW X6M downpipes, decat downpipes, catless downpipes, 3 inch downpipes, 76 mm downpipes, performance exhaust downpipes or turbo downpipes for F85 F86, this is the proven upgrade.
- Constructed from premium T-304 stainless steel for strength, durability and corrosion resistance
- Expert TIG welded for a precise, leak-free finish and long-term reliability
- True 3 inch, mandrel-bent design for maximum gas flow and faster turbo spool
- Sharper throttle response with noticeable power and torque gains
- Real-world tested gains of 30 to 40 bhp when combined with suitable supporting mods
- More aggressive, motorsport-inspired exhaust note that enhances the V8 character
- Reduced exhaust backpressure and lower temperatures for improved turbo efficiency
- Substantial weight saving compared with the factory catalytic converters
- Finished in brushed stainless and supplied with gaskets and bolts for installation
- Backed by a lifetime warranty for peace of mind
Fitment
- BMW X5M F85 4.4 Twin Turbo
- BMW X6M F86 4.4 Twin Turbo
Why choose these BMW X5M X6M decat downpipes
Designed to unlock the performance potential of the S63R N63N 4.4 twin turbo V8, these F85 F86 downpipes deliver the airflow your engine and turbos need. Less restriction means your turbos work more efficiently, giving you faster spool, stronger mid-range and top-end power, and a cleaner, deeper exhaust tone. We have installed and tested these downpipes and our customers consistently report exceptional results, improved drivability and a dramatic improvement in sound.
Installation and fitting
Professional installation is recommended as OEM exhaust tolerances can vary and clearances are tight. For fitting, choose Nforcd in Warwickshire. Request a fitting quote by emailing Sales@nforcd.com.
When installing, you do not need to refit the standard heat shields as there are no catalytic converters to retain heat. Reinstalling the factory shields can be difficult and is not recommended.
We also recommend adding Lambda sensor spacer(s) to help prevent an engine management light in most cases. You can purchase O2 spacers from our store.
What you will notice
- Stronger, crisper throttle response and faster turbo spool
- 30 to 40 bhp potential increase with supporting modifications
- Deeper, more aggressive exhaust note under load
- Improved flow for tuning and remapping potential
Search-friendly terms
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Note: For off-road and track use where applicable.