85200 88002 3406E/C15/C16 Ceramic Coated Exh Manifold ’94-’04

85200 88002 3406E/C15/C16 Ceramic Coated Exh Manifold ’94-’04



Replaces OEM #146-9445. Bully Dog’s first and still most popular Cat® manifold. Generally fits Peterbilt® and Kenworth® applications as well as some International® applications. Also will work on some B and C model engines if the ports are round and not square. ARP Turbo studs are included.

Benefits & Features

  • Better design, pressure fitted to eliminate leaks.
  • Sharp corners have been smoothed for better flow.
  • High Quality material to eliminate cracks.
  • Ported to eliminate any flow interference.
  • Ceramic Coated cooling EGT by 100 degrees.
  • Fuel Mileage increase.
  • 20-30HP Increase.


  • 3406E 14.6L ’95-’98
  • 3406E 15.8L ’97-99
  • C-15 14.6L ’99-’04
  • C-16 15.8L ’99-’02

625 Acert C-15

I have an 625 Acert Cat engine that I pull at flat bed with a walking floor. I purchased and installed both the Power Pup and the ceramic coated exhaust system at the same time from J&S Sales. Immediately after installing both products I noticed that my EGTs dropped 100 degrees. My fuel economy is up a solid 1/2 mile. Some loads I’m seeing 8/10s to 9/10s improvement, but I’m very comfortable saying a 1/2 mile gain. I’


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