It has all the jets, springs, and needles to tune any modification and any altitude.
The kit has recommendations for sea level to 5000 feet, and 5000 feet and above. DFR learned that the needles had to be much smaller and the springs had to be quite softer to create the correct vacuum pressure for the CV style Carburetor. This was most evident with the DFR Air Box and exhaust; the vehicle would not even start unless it was re-jetted. The air flow was so great on the intake side the Slide would not open correctly.
DFR claims 9 RWHP gain with jetting and the DFR ignition alone, with the vehicle reaching over 62 MPH. DFR added the intake and exhaust and saw another 7 RWHP.
These are tremendous gains and require clutching to be able to handle the excessive power. DFR-4PC2 is recommended if not required if you are going to add any performance to the Teryx Motor. | 
