Straightline Performance is excited to introduce our latest products designed specifically for the Polaris Sportsman 450 & 570 ATV.
Quiet Core
The perfect addition to our renowned Straightline Performance Muffler. Designed for those who crave power without the noise, our Quiet Core Insert significantly reduces exhaust noise, ensuring a smoother and quieter ride. Crafted with precision engineering and high-quality materials, this insert effortlessly fits into your muffler, providing optimal sound dampening without compromising performance.
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
Upgrade your Polaris Sportsman 450 & 570 ATV with Straightline Performance and feel the difference.
Fitment: (14-24) Sportsman 450, (14-24) Sportsman 570
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