New Paxton Novi 2500 which is rated at 2000 CFM. This is a direct replacement for the Novi 2000 and will bolt on without needing any other parts. The Novi 2000's were rated at 1400 CFM so the Novi 2500 is almost a 1/3 more air than the older Novi 2000 units. I have one New Novi 2500 left in a sealed Paxton box. Price is $1800 which saves you almost $1200 from what you would pay for this.