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The Polaris Predator 500 (2003-2007) is long out of production, so this is a genuinely narrow aftermarket – a handful of ATV exhaust specialists (HMF, FMF, Big Gun, Yoshimura) still make real slip-ons and full systems for it, but the days of a dozen competing brands are over. These seven are actual, current or recently-listed products built specifically for the 03-07 Predator 500, not generic universal pipes.
| # | Product | Price | Where to buy |
|---|---|---|---|
| 1 | HMF Performance Series Slip-On | $200-$280 | Amazon · eBay |
| 2 | HMF Performance Series Full Exhaust System | $350-$450 | Amazon · eBay |
| 3 | HMF Competition Series Full Exhaust System | $380-$480 | Amazon · eBay |
| 4 | FMF PowerCore 4 Slip-On Muffler | $300-$360 | Amazon |
| 5 | Big Gun Evo R Slip-On Muffler | $180-$240 | Amazon · eBay |
| 6 | Big Gun Evo R Full Exhaust System | $320-$400 | Amazon · eBay |
| 7 | Yoshimura RS-3 Full Exhaust System | $400-$500 | Amazon |
The picks, in detail
HMF Performance Series Slip-On
HMF’s bolt-on slip-on for the 03-07 Predator 500, picking up 10-15% more horsepower through the curve per HMF’s own figures.
- Aluminum shell, stainless head pipe
- Lighter than the stock muffler
- Bolt-on slip-on install
- Fits 03-07 Predator 500
- Real documented dyno gain from HMF
- Lighter weight than stock
- Requires fuel tuning to run correctly, per HMF’s own install notes
HMF Performance Series Full Exhaust System
The full-system version of the same HMF Performance line, rated for a bigger 15-25% gain.
- Full header-to-muffler system
- Aluminum/stainless construction
- Fits 03-07 Predator 500
- Larger power gain than the slip-on alone
- Higher cost and more involved install than a slip-on
HMF Competition Series Full Exhaust System
HMF’s higher-tier Competition system for the Predator 500, aimed at riders chasing maximum flow over street manners.
- Full competition-spec system
- Aluminum/stainless construction
- Fits 03-07 Predator 500
- HMF’s top-tier performance option for this quad
- Louder and less street-friendly than the Performance series
FMF PowerCore 4 Slip-On Muffler
FMF’s dedicated slip-on for the 2003-2007 Predator 500 4×2, built to add usable power across the whole curve rather than just up top.
- Aluminum muffler body
- Spark arrestor available
- Fits 2003-2007 Predator 500 4×2
- FMF’s PowerCore reputation for broad, usable power gains
- 4×2-specific listing – confirm fitment for other Predator 500 drivetrains
Big Gun Evo R Slip-On Muffler
Big Gun’s bolt-on Evo R muffler for the 03-07 Predator 500.
- High-temp fiberglass packing
- Bolt-on muffler/pipe
- Fits 03-07 Predator 500
- Budget-friendlier than the full system
- Packing needs repacking roughly every 15-20 hours of ride time to stay quiet
Big Gun Evo R Full Exhaust System
The complete Evo R header-to-muffler system, Big Gun’s part BG-09-7563 for the 03-07 Predator 500.
- Full header-to-muffler system
- High-temp fiberglass packing
- Fits 03-07 Predator 500
- Bigger gain than the slip-on alone
- Same periodic repacking requirement as the slip-on
Yoshimura RS-3 Full Exhaust System
Yoshimura’s full system for the Predator 500 (part 961-8140), consistently named by owners as the best-performing but priciest option.
- Full header-to-muffler system
- Stainless/aluminum construction
- Fits 03-05 Predator 500 (part 961-8140)
- Owners on Predator forums specifically call it the top performer
- Most expensive option here, and fitment is listed specifically for 03-05
Buying tips
- Any full system or slip-on on this list changes airflow enough that the stock carburetor jetting will likely run lean – budget for a rejet kit or fuel controller alongside the pipe.
- Fiberglass-packed mufflers get louder over time as the packing degrades – factor a $15-25 repack kit into the real cost of ownership.
- This quad has been out of production since 2007, so confirm current stock before buying – some of these parts move in and out of availability as manufacturers run limited batches.
- A slip-on alone (HMF Performance, FMF PowerCore 4, Big Gun Evo R) is the cheaper, easier first upgrade; step up to a full system only if you’re also modifying the head or intake.
As an Amazon Associate and eBay Partner, toptenpick.com earns from qualifying purchases. Prices and availability are subject to change.