Sinister Provides More Power & Torque

September 2014 Products

Dyno tests show Sinister Diesel’s Y-Pipes for the 2003-2007 6.0L Power Stroke Super Duty and Excursion add 65hp and 148 ft/lbs. of torque over stock at 2,300 rpm, improving drivability and towing capability. When installed with a performance tune it adds up to 121hp and 289 ft/lbs. of torque. 

Sinister has replaced the bellows in favor of a stronger, longer-lasting “double slip” flex joint, allowing the Y-Pipe to flex and move during heat expansion while maintaining a 100 percent seal. Plus, Sinister Y-Pipes are fully TIG-welded, as well as back-purged. The Y-Pipes are available in raw, ceramic, and heat-wrapped finishes. (888-967-8823/




  • Like what you read?

    Want to know when we have important news, updates or interviews?

  • Join our newsletter today!

    Sign Up
You Might Also Be Interested In...

Send to your friends!



MAY 2021

It's an early morning in Payette, Idaho, a hard-working community approximately 60 miles from Boise, and the sun is just starting to peekout for the first time. The rest of the world is beginning to wake up, but the sounds of an active manufacturing plant have been ramping up for hours. This small population town is the headquarters for fusion bumpers, a custom bumper manufacturer for nearly 15 years...

Get a Sneak Peek

Already a subscriber? Please check your email for the latest full issue link.