Best Exhaust for YFZ450R (with sound clips)

Best Exhaust for YFZ450R
Photo courtesy David Precious via flickr. Used under a CC BY 2.0 license.

Question: What’s the best exhaust for YFZ450R? I bought a Yamaha four-wheeler ATV. It has the stock quiet muffler. It needs to be louder with a slip on muffler and make more power.

6 top slip on exhausts for the YZF450R

Dasa exhaust YFZ450R

Dasa Exhaust Complete System Classic Edition Red + VORTEX - Compatible with Yamaha YFZ450R
  • All Dasa exhaust systems are handmade in the USA and the quality really shows with perfect tig welds, trick billet end caps, a billet canister mount, thick head pipe flange and the end caps do unbolt for easy canister repacking. This exhaust system has been proven on the dyno to make big HP throughout the entire power curve. This is a multi-step, stainless steel exhaust system that includes a head pipe, mid pipe, and an exhaust canister.
  • The Vortex is like our and EFI Interceptor rolled into one module. The controls not only Spark timing and Voltage output but also Fuel Metering and other engine management functions. The result is more power, better power, easier starting and ultimately faster lap times. This unit comes pre-programmed with 10 Performance Fuel & Spark timing maps as well as having 3 additional switches for user trimming (adjusting) of Fuel in Lo, Mid and Hi throttle openings.
  • The plugs directly into the bikes standard wiring harness and interfaces with all the standard engine sensors such as ECT (Engine Coolant Temperature), IAT (Intake Air Temperature), MAP (Manifold Absolute Pressure), TPS (Throttle Position Sensor), CPS (Crank Position Sensor) to adjust fuel and spark timing for optimum power delivery in all weather, altitude and load conditions.
  • Performance gains vary depending on throttle and RPM points however typically gains are in Top End power and Bottom End throttle response is expected from the Power settings and a smoother more tractable or rideable power from the Traction settings. We have done extensive work to include tune parameters which improve starting and almost eliminate the flameouts experienced with EFI mx bikes.
  • RacingPowerSports bundle includes: Dasa Exhaust Complete System Classic + VORTEX. Compatible with YFZ450R (All Years). Color: Candy Red with Black End Cap

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FMF exhaust YFZ450R

FMF Factory 4.1 RCT Slip-On Exhaust (Aluminum with Stainless Steel Mid Pipe and Carbon Fiber End Cap) Compatible with 18-19 Yamaha YZ450F
  • The Factory 4.1 RCT incorporates the latest in FMF Resonance Chamber Technology™ both internally and externally.
  • It starts at the center with a new core - a patent pending shape enhances and refines the exhaust pressure wave for optimal power output while lowering the sound level.
  • In addition, it achieves a shorter overall length that is less susceptible to crash damage and complementary to the Factory Forward Engineering - moving the muffler(s) closer to the motor to centralize mass.
  • Visible changes to the exterior include a redesigned canister to increase internal capacity for the maximum volume of packing material.
  • The packing itself was not overlooked - a proprietary blend formulated for superior durability and sound attenuation.

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Sparks

Sparks Racing X-6 Stainless Steel Race Core Full Exhaust - Compatible with Yamaha Yfz450r
  • 100% made in the USA in our in-house exhaust manufacturing facility
  • 100% made in the USA in our in-house exhaust manufacturing facility
  • 6061-T6 muffler components which keeps weight down while retaining durability
  • Includes spark arrestor and accepts a quiet insert
  • Comes with any hardware needed for installation and detailed installation tuning and exhaust system care instructions

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Yoshimura

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Popular brands include Dasa, Empire, Rossier, Barker, Sparks, Yoshimura.

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