FMF Q4 ATV Exhaust

By MPN Staff Writers
Sep 1, 2008

FMF is making some noise about its quiet Q4 ATV exhaust. With patents pending, this is one of FMF’s most technically advanced products. The Q4 employs intricate chambers, baffles and proprietary multistage packing material, making it what FMF says is the best performing quiet muffler available. The $329.99 slip-on has a maximum sound output of 96dB, with most models emitting below 93dB.

For more info: FMF Racing Inc.

18033 S. Santa Fe Ave.

Rancho Dominguez, CA 90221-5514

(310) 631-4363

www.fmfracing.com

2022-2023 Polaris RZR PRO R 4 Ultimate Eibach PRO-UTV Spring System

With adjustments to the combined spring rate and crossovers, Eibach is proud to have achieved a smooth and planted ride.

By MPN Staff Writers
Sep 13, 2023

The Polaris RZR PRO R 4 Ultimate just got even better with the Eibach PRO-UTV Spring System. During testing Eibach's engineers felt that the RZR PRO R 4 Ultimate felt great out of the box but could use an improvement on low-speed bump chops and was prone to bucking over whoops. With adjustments to the combined spring rate and crossovers, Eibach is proud to have achieved a smooth and planted ride.