Description

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.

Applications

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

Testimonials
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’