Everyone knows to get maximum performance, we need to reduce restrictions in our intake and exhaust systems. This is why the port and polish and Power-flow exhaust systems are so popular for those who want to maximize speed and power with the added benefits of saving on the AvGas bill.
What if you could pick-up a measurable gain with something as simple as putting the best air filter in the business on your kitty at a fraction of the cost of a P&P or exhaust system?
I put a challenger filter on my 75 Tiger and saw a 50RPM static increase and ~0.5 in improvement in manifold pressure. This translates to about a 0.3 GPH savings at my normal cruise settings (2550-2650). Best of all, it is reusable!