I wrote some time ago about the Capristo’s new set of Carbon Fiber parts for the Italia.
Here’s an interesting comparison where the Capristo’s Carbon Fiber Airbox + stock air filters is compared with a competitor full airbox + conical filters. I let you guess which competing product it is but it is very recognisable
The left one is the new Capristo Airbox using the large OEM air filter while the right Airbox is using it’s own specific air filters (wash and re-oil principle)
The Capristo's CF Airbox installed on the Italia.
The competing Air box is installed on the Italia ready to go through the Dyno tests
And here are the Dyno results of both tested products : Results
Stock air box and filter : 569HP @ 8598rpm – 555.9Nm @ 4770rpm
Competing air box and conical air filter : 564.5HP @ 8438rpm – 560.9Nm @ 3811rpm
Capristo air box + OEM air filter Test 1 : 567.5HP @ 8411rpm – 577.4Nm @ 3823rpm
Capristo air box + OEM air filter Test 2 : 569.6HP @ 8275rpm – 581.7Nm @ 3872rpm Conclusions :
The difference is mainly in the torque figures allowing more torque at a much lower engine rpm.
The improvements are not obtained by changing the air filters but by a better design of the air box, thus preserving the best filter capacities of the stock air filter.