• Designed for a 2015 Alien, 2011 - 2015 Harris, 2012 - 2013 Dirt Boss, 2014 GRT, 2013 - 2015 Taylor and 2011 Skyrocket chassis.

• Also fits 2010 - 2013 GRT chassis with 1" raised motor and 2010 - 2015 BMS with an 80 degree turn down on the left side.

• High quality stainless steel for increased header life and exhaust velocity vs. mild steel.

• Fully TIG welded construction improves weld quality.

• Triple-step long tube design optimized on “in-house” engine dyno.

• 9" long collector for IMCA rules.

• Laser cut flanges w/ 604 crate port design.

• Three inch collector outlet diameter.

• Gaskets and bolts included.

• Accommodates raised & offset engine positions.

• Half Sets are available for crash replacement

After 177 pulls and over 75 combinations tested, we found Monster Power & Torque to add to your crate engine package!