New Paxton Novi 2500 rated at 2000 CFM is a direct replacement for anyone that already is running a Novi 2000 which is only rated at 1400 CFM. The Novi 2500 has an RPM limit of 60,000 and 30 PSI of boost. Upgrade you Paxton Novi 2000 with this 2500 as its the same case as you're using now. It looks the same as the 2000 and no one would ever know why you car is faster unless they read the tag on the side of the case that says 2500. Only have this one new uint left. $1800 which will save you almost $1200 if you buy one from Paxton.