Tri-Y-Headers.jpg

The head pipe fell off one day, so I used this reason to buy this Doug Thorley Tri-Y Ceramic Coated Header (http://www.dougthorleyheaders.com/). Tri-Y headers are for low end power increases* (4 in 1 designs are for high rpm power), so it is perfect for our motorhomes.

*From the Doug Thorley Catalog: "The Tri-Y design yields maximum power from idle to 4500 RPM, while adhering to strict emissions standards. Engineered to be well-suited for Trucks, Tow-Rigs, and RV’s, power significantly increases in mid-range RPM’s, making this style exceptionally efficient at highway speeds. Fuel economy and low-end torque increase dramatically with the Tri-Y systems while reduced backpressure, lower engine heat and lessened weight are all added benefits of this design."