4-into-1 Exhaust – AEIO/Stock Updraft & Cold Air Sumps

4-into-1 Pitts S1/DR 107* $1,995
4-into-1 Skybolt/Eagle* $2,155
Crankcase Vent Tube Included @ No charge
All of our exhaust systems are made with 321 Stainless and pipes are bent on our own equipment. Each pipe is made from a primary and secondary that slip fit together, there are no welded joints to crack. All pipes slip fit into the collector as well, this along with a slip fit connection on every pipe ensures freedom of movement with virtually no chance of any stress cracking.
Our 4 into 1 exhaust has proven to increase horsepower, combine it with a Cold Air sump for even more HP! All systems have been test fit to an engine with cowling to ensure a good fit with ample clearance between pipes and cowl so no mods are needed, the only area where modification may be required is the exit area.
*Specify Spring gear or Bungee.