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Home > Polaris RZR | RZRS | RZR4 - Yoshimura Full Exhaust System
Polaris RZR | RZRS | RZR4 - Yoshimura Full Exhaust System
Polaris RZR | RZRS | RZR4 - Yoshimura Full Exhaust System by DFR.
LESS NOISE, LESS WEIGHT, AND MORE HP!
Dragonfire Racing has done it again! Through years of industry knowledge and racing experience we have sought out the perfect partnership with Yoshimura resulting in the best all around exhaust system for the RZR, RZR S, and RZR 4. Our ultimate goal for this system was to optimize HP gains, while keeping sound decibels as low as possible, and still maintaining awesome sound quality. This system was designed with strength/durability in mind and is ready to handle anything you can throw at it!
Be sure to check out the PIM2 fuel controller, DFR intake, and clutching options to maximize engine performance.
Out performs stock exhaust system throughout the entire RPM range
1.5 pounds lighter than stock exhaust system
Meets or beats USFS noise and spark-arrestor specifications
Constructed entirely from 304 Stainless steel for a long lasting durable and resistant life
OEM 39.8 HP 32.6 lb-ft TQ
Yosh Open 42.8 HP 34.0lb-ft TQ
Yosh w/ Spark Arrester 42.9 HP 34.7 lb-ft TQ
Test RPM 3000 RPM MAX rpm, 45 deg from rear axle
OEM 90.2 dba
Yosh Open: 96.0 dba 110 dba
Yosh w/ Spark Arrester 92.5 dba 107 dba
Yosh Full System
* United States Forestry Service
NOTE: Dyno results will vary due to Weather Conditions and Dyno systems
Header and Tail-pipe Features:
Polished 18 gauge 304 stainless-steel CNC mandrel bent construction
Oversized step tube design
Mandrel bent merge tube collector
Argon purged MIG welding
Step-Chamber pre muffler
Retains rubber insulating mounting points and “doughnut” style gaskets
Intergraded O2 sensor bung