• 2017 - 2018 Ford F150 3.5L Ecoboost Stealth Resonated Catless Downpipe

Needing more performance, MPG's and sound from your 2017 - 2018 3.5L Ecoboost F150? Look no further! All of SPD's resonated catless downpipes use resonators in place of the catalytic converter for those who want to go catless but also want to keep the exhaust sound mild. SPD uses larger 3" diameter mandrel bent tubing which improves throttle response, mileage and overall performance while reducing turbo lag and exhaust temperatures.  


On all SPD Performance's aluminized resonated catless downpipes, you get:

  • Increase in performance
  • Improved turbo spool time
  • Better fuel mileage
  • 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 1 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.

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2017 - 2018 Ford F150 3.5L Ecoboost Stealth Resonated Catless Downpipe

  • Product Code: DP35F1718B-RES
  • Availability: In Stock
  • $590.00 & Free Shipping