Make: Polaris Model: RZR S Years: 2011 2012 2013 Series: Swamp System: Full Shape: Round Mount: Side Color: Stainless Steel End Cap: Swamp HMF EFI REQUIRED Swamp Series Controls sound levels to approximately 1-2 dB over stock 304 Stainless Steel, 5" diameter shell gives the exhaust more internal volume. The inlet is TIG welded for a completely water tight seal in conjunction with the snorkel kit. USFS Approved: All HMF offroad exhausts come with a USFS approved spark arrester. Two Year Warranty: HMF Engineering Inc. warranties all exhaust systems for two years from the date of purchase for all manufacturing defects. The HMF Optimizer is pre-loaded with baseline settings for your Polaris RZR S 2011 2012 2013 using a HMF exhaust. Plug it in and ride. The HMF Optimizer is a piggy-back EFI controller because it does not replace the stock ECU, but rather monitors the signals to the injectors and makes fuel adjustments based on the mode settingsthat have been pre-loaded at HMF. The HMF Optimizer has a push button interface allowing access up to 3 different modes to allow for quick fine tuning by the end user without the need of a computer. (Final tuning is always the responsibility of the end user) Key Features: Pr-loaded map developed by HMF specifically for quads that run a HMF exhaust. No laptop necessary/push button tuning on the fly. Uses load based technology which allows for tuning in every gear. Ability to add fuel without altering the stock fuel map. Easy to see LED lights to indicate operating zone. Push button interface to allow quick fine tuning. Easy installation. Boost Sensing fuel control

Uni Air Filter for a Polaris RZR S 2011 2012 2013. Will NOT Void Vehicle Warranty. Works with Original Equipment Manufacturer Vehicle Electronics. Uni Foam Air Filters use polyurethane foam as the filtration media because of it's superior dirt capturing abilities. "Open Cell" Polyurethane Foam is wetted with specially developed filter oil. The "sticky" filter oil is suspended in the path of the dirty air making it impossible for dirt to pass through the depth of the filter.

*Hardware may be different than pictured.

Store Policies: Customer Satisfaction is Policy #1 at Race Parts.  We are eBay professionals and we bring years of experience in the world of powersports to the table. As former HMF employees, we know this product inside and out and you can be assured that your purchase will be handled by a friendly professional from start to finish. You will receive email update with a tracking number when your product ships. CHECK OUR STOCK: Stock levels change daily. Check to see what options are on the shelf and estimated delivery time. CONTACT *Please include model/year/color in email/text. All HMF exhausts are hand built to order in the USA. We carry an extensive stock of HMF Exhausts but with over 1600 series/color combinations, we simply cannot stock every variation. Please ask if you have time constraints. If we don’t have the exact product you are looking for, we may have a suitable option on the shelf. Sales/Tech Support questions welcome M-F 9am-5pm EST

Race Parts carries a full line of only the best high performance accessories and parts. K&N filters up to 60% off, Jet Kits, HMF Quiet Cores, EFI Controllers, Tires, Lighting, Handle bars and more! Just ask and you will find the best prices on eBay.