Straightline Performance is excited to introduce our latest products designed specifically for the Polaris Sportsman 450 & 570 ATV. Our new muffler and performance tune enhancements will bring your quad to the next level.
Lower, Deeper Tone
Say goodbye to the tinny stock sound! Our new muffler provides a richer, more satisfying exhaust note.
Trail Friendly with Quiet Core
Stay stealthy on the trails with our Quiet Core, available for just $30.00.
Premium Construction
• Stainless Internals and Inlet: Built to withstand the toughest conditions.
• Machined 6061 Billet Tip: Adds a touch of precision engineering to your ATV.
• Machined Aluminum Finished Body: Durable and stylish.
Safety First
Includes a USFS-approved Spark Arrestor to keep your rides safe and compliant.
Easy Installation
Our upgrades are designed for a simple and fast install, getting you back on the trails in no time.
Versatile Performance
Compatible with or without our Performance Tune, giving you flexibility in how you enhance your machine.
Lightweight Design
Experience a 50% weight savings over the stock muffler, improving your ATV’s handling and agility.
Power Gains
• +2HP (10%) Gain with the Straightline Muffler.
• +4HP (20%) Gain with the Straightline Muffler and Performance Tune.
• +6HP (25%) Gain with the Straightline Muffler, Performance Tune, and Intake Mod – allowing more airflow, more intake sound, while still running the stock air filter.
Upgrade your Polaris Sportsman 450 & 570 ATV with Straightline Performance and feel the difference.
Fitment: (14-24) Sportsman 450, (14-24) Sportsman 570
NOTE: WILL NOT FIT TOURING MODELS OR ANY 570 WITH A ROUND MUFFLER. ONLY FITS THE OVAL STYLE MUFFLER. (Polaris made 2 570 models with different mufflers, if you are unsure please email tech@straightlineperformance.com)
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