All Full Boar High Performance Diesel Truck Exhaust System's mufflers and piping are 4", aluminized, mandrel bent and aluminum welded, giving you the maximum flow available! Every diesel exhaust system is also a bolt-in design - so there's absolutely no welding needed to install it!

Mufflers can be installed in either direction and are two toned. By reversing the direction of the muffler, you can control and change it's tone/sound! Additionally, every Diesel Exhaust System is shipped complete (all in 1 box), and comes with a 1 year warranty for workmanship and materials. Detailed instructions are also enclosed.

All designs have been Dyno and Flow tested insuring MAXIMUM power gains!
With Full Boar's bolt-on, reversible and complete Diesel Exhaust Systems - it couldn't be easier to change the sound and performance of your truck!