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...