NOTE: Due to California emission regulations, this item CANNOT ship to California.
Applicability: 2011-14 Polaris RZR XP 900 and RZR XP 4 900
To get the most out of your HMF exhaust system and your Polaris RZR XP 900 or Polaris RZR XP 4 900, then you're going to need the HMF Dobeck Optimizer. This optimizer will help keep the air/fuel ratio correct, which means that you'll get the most performance out of your side by side. With the push button interface and "Plug 'N Play" installation, adding this to your UTV is fast and easy. No CPU or Dyno required means that you can simply hook it up and go, making minor adjustments as needed.
Pre-programmed with the best settings for your HMF exhaust
Push button interface unique load based technology