Needing more performance, MPG's and sound from your 2015 - 2017 Expedition/Navigator? Look no further! All of SPD's catted downpipes use the highest grade catalytic converters and larger 3" diameter mandrel bent tubing which improves throttle response, mileage and overall performance while reducing turbo lag and exhaust temperatures. Our Catted Downpipes will not cause CEL (check engine light).


On all SPD Performance's Aluminized Steel Catted Downpipes, you get:


  • Increase in performance
  • Improved turbo spool time
  • Better fuel mileage
  • High flow catalytic converters that do not cause check engine lights
  • High temp silica ceramic coated for long life span
  • Factory style flanged clamps on all flared turbo and exit connections
  • High grade clamps for a solid seal and no leaks
  • All hardware included 


Please allow up to 2 week for us to ship our downpipes. Please contact us for any expedited requirements.


These downpipes are not EPA approved and are for off-road use only.  

2015-2017 Ford Expedition/Navigator 3.5L SPD Performance Catted Downpipe


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