
Developed Right here at SMRE and built in conjunction with Extreme Velocity.
The PRO Hat is simply the best you will find! As you can see from the pictures it should fit all applications where you have the more common hat. Dyno Test after Dyno test we have consistently seen 25 to 35 peak HP increase and 20 to 30 AVERAGE power increase in all engines 1200 HP and above. We have not tried it on the lower power engines yet but see no reason why it will not work.
With the PRO Hat in back to back testing we have seen a 1 PSI increase UNDER the Carb. This is showing an increase in air flow and air quality. I.E more power!
The PRO Hat has a 4 inch inlet instead of the 3.5 and is 4.5 inches tall and needs no spacer. We have made 2000 HP with the PRO Hat, it works!
Don't forget about our Steve Morris Edition Dominator Hat. This is the Hat that we have developed and tested continuously on all engines 1400 HP and above. The only Choice for your Dominator! Dom Hats have a 5 inch inlet and are 6 inches tall.
Dom Hats Polished - $450.00
4150 PRO Hat Polished - $350.00


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