Honda crf 250 exhaust

Honda crf 250 exhaust DEFAULT

As soon as I fired the bike up with the new exhaust it was clearly a bit louder, not obnoxious, but a nice, throaty sound that was deeper and less raspy. I tested the stock system back to back with the Yoshimura system on the same days, so it was cool to see the places on each track where the bike really felt different. The most noticeable place the bike felt better was out of tight inside ruts that exited up faces of jumps. With the stock system I had to slightly slip the clutch all the way up the lip (to be able to clear the jump). When I bolted on the Yoshimura system I could leave it in the same gear and just use the meat of the new found Yoshimura power to pull me up and over those types of jumps. Some areas of the track I had to be in second gear and then scream the bike on the exit of corners with the stock system. With the Yoshimura system I could now be a gear higher at times and use that extra meat to get me out of a loamy berm more efficiently. From mid to top end I didn’t notice any real added power gains, but I also didn’t feel like the top end suffered in order to get the added bottom end snap that I received with the Yosh. I will say that the mid rpm response is slightly crisper when in third gear as well as the recovery in third gear through deep corners. Bolting on the Yoshimura full system will not make your Honda as responsive as a Yamaha YZ250F, but it will get you a little added excitement that you could be looking for. Plus the Yoshimura mufflers look much cooler than the stock ones. 

If you have a 2020 Honda CRF250R and feel like you’d like a bit more bottom-mid range power, I’d definitely look into the RS-9T stainless system. Yoshimura offers three options, the slip on mufflers ($809.00), the full stainless system ($909.00), and the full titanium system ($1499.00). Admittedly none of these are super inexpensive options, but it’s one of the few things in today’s four-stroke world that can provide a true bolt on benefit. 

You can check out yoshimura-rd.com for more of you can contact me at [email protected] if you have any questions. 

Sours: https://www.keeferinctesting.com/offroad-testing/2020/6/9/yoshimura-rs-9t-stainless-full-system-2020-honda-crf250r

CRF250R 2018

CRF250R 2018

Rocket Exhaust produces premium quality, made in the USA exhaust systems. The unique “octagonal” shape of the muffler has superior noise canceling features; larger packing volume is stronger, lighter and has better tire clearance than conventional designs. If you need to reduce the decibel level Rocket offers optional Stealth Core inserts. We also have a full line of performance engine parts, Stage 1, 2 and 3 engine packages with CNC ported cylinder heads, engine rebuild services and custom Vortex ECU maps for our engine kits. Please contact us for more information.

Standard 250F/350F muffler length 14.5 inches, Standard 450F muffler length 15.5 inches. CRF 250/450 dual system muffler lengths 12″. Custom lengths available.

The Rocket Exhuast

The muffler housing is available in brushed aluminum, black hard anodized aluminum and carbon fiber. The unique muffler mounting system insures a “happy” fit utilizing our adjustable CNC machined hanger bracket and precision mid-pipe to muffler slip-fit.

Head and mid-pipes are constructed from aircraft quality 304 stainless steel. Each model is dyno tuned and track tested to optimize performance and power gains using “stepped” and or “tapered” tube designs.

Thin wall 304 stainless steel head and mid-pipe construction

6061 aluminum or optional lightweight carbon fiber muffler housing

Race legal versions available

(12″-17″) and multiple core designs available

Approved spark arrester optional

Hanger bracket and end cap nozzle

We take care of all our customers. If it is broken, we fix it.

12″, 14.5″ to 15.5″ (Custom Lengths Available)

mm (varies per length and core type)

mm (varies per length and core type)

lbs (varies per length and core type)

CNC Machined 6061 Aluminum

dB (std systems meet AMA 94 db, FIM 2 Meter Max avail (not for all bikes) (note larger outlet nozzle and or core dia and shorter muffler housing will add more sound db)

94 dB with Stealth Insert

(every bike is different)

Sours: https://www.rocketexhaust.com/product/crf250r-2018/
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Chain Size:       Front Sprocket:       Rear Sprocket:       Front Tire:       Rear Tire:       Spark Plug:
520x10614T40T3.00-21120/80-18SIMR8A9

Exhaust

The RS-4 Slip-On exhaust has a unique design that provides an unrivaled combination of power and a quiet exhaust note.

  • Pentagonal-shaped sleeve
  • Front muffler cap functions as a polyresonant chamber which helps reduce noise
  • Laser-cut heat shield on polyresonant chamber
  • Two-stage stepped baffle
  • Turn-out carbon fiber end-cap
  • Stainless steel tail-pipe
  • Features lightweight stainless steel and aluminum construction
  • Designed to increase horsepower and torque
  • Bolts directly to the stock headpipe
  • Uses a U.S.F.S. certified spark arrestor.
  • DG offers 4 different Quiet Core Inserts to reduce exhaust sound.
  • Lightweight at approximately 5.5 lb.

When designing the PowerCore4, FMF looked at their top of the line products to deliver race-inspired performance at an economical price. The end result is a quality muffler with improved torque, increased horsepower and rugged durability all at a price that won't break the bank.

  • The Q4 employs intricate chambers, baffles and proprietary multistage packing material making it the best performing quiet muffler available
  • Constructed from aircraft grade aluminum and high strength stainless steel
  • Sound output 96dB
  • 8 pounds lighter than the stock muffler

 You can bolt on a Mega bomb with an existing FMF Racing slip on for as much as a 3hp boost, plus the Mega bomb actually reduces noise levels by as much as 1.5dB.

The PowerBomb is a four-stroke header that incorporates FMF's patented PowerBomb module at a precise location in the initial stage of the header. By positioning this "Bomb" at a key point in the system, increased performance and flow is achieved through the expansion and contraction of exhaust sonics through the system with a flow increase of nearly 10%!

  • Reduce exhaust sound by one to six decibels
  • Works with DG V2 mufflers
  • Easy installation; remove rear end cap and place Quiet Core in front of the spark arrestor
  • Smaller diameter inserts are quieter but more restrictive; larger inserts are less restrictive but louder
  • Each size is sold separately

Perforated W/ Block off Plate

(Gen2 O Series has Black Tip similar to V2)

This Quiet Insert comes stock in all new FMF Q4 mufflers. If you lost yours, this is the replacement you need. It will fit Q4, Q4 Hex, Powercore and Powercore Hex mufflers. It will reduce the sound rating of the Power Core models, from about 99db down to about 96db.

This gasket seals the joint between the head pipe and Exhaust port. These gaskets are designed to crush a little bit to tightly seal where the pipe fits to the head. Get a fresh one now avoid having an exhaust leak when you install your new exhaust.

This gasket seals the joint between the head pipe and muffler. These gaskets are easily damaged when removing the original muffler. Get a fresh one now to ease installation of your new performance muffler.

Protect your head pipe from rock damage. This stainless steel spine clamps to your head pipe to add a layer of protective armor between your vulnerable pipe and those nasty rocks or logs. Fits the stock headpipe. Will fit the FMF head pipe with the addition of larger clamps.

The Chilly Exhaust Heat Shield is the most effective heat shield on the market. The innovative three piece design consists of a top shield attached to 2 rails with rivets and spacers. This reduces the contact area and slows down heat transfer. They have incorporated a patented, insulated reflective blanket on the underside of the shield to reduce radiant heat transfer. The included stainless steel clamp makes it simple to install. 

We highly recommend a heat shield if you run soft luggage without hard racks. 

FEATURES:

  • Solid Top Shield- The logo is laser etched and there are no cutouts on the top shield. This prevents radiant heat from passing straight through to your luggage.
  • Side Rails- By isolating these with spacers the heat conductive surface area to the top shield is reduced and slows down heat transfer.
  • Radiant Heat Shielding- The reflective insulated blanket on the bottom of the shield is the real hero. This patented material won't be found anywhere else in the motorcycle industry. 
  • Stainless Steel Clamp- Slots have been provided in the side rails to make installing as easy as it gets.
  • Brushed Aluminum- Lightweight and looks nice.

DIMENSIONS:

  • Length 7.5" (190mm) x Width 3.5" (76mm) x Height 1" (25mm)
  • Clamp fits any exhaust 3.5" - 5.5" (89mm - 149mm)

Have you lost your stock heat shield, or need one on an aftermarket head pipe? FMF makes this nice unit that includes clamps, heat shield with the FMF logo and button head screws to hold it on. We recommend Anti-Seize on all exhaust fasteners.

Don't get burned! Giant Loop's ingeniously simple and effective exhaust shield protects bags and bodywork from heat damage. The Hot Springs Heat Shield helps avoid the meltdown, preventing bags and side panels from touching your bike's exhaust. It's the lightweight, universal heat problem-solver for virtually any motorcycle exhaust system. Backed by a Limited Lifetime Warranty.

This universal heat shield provides a great look at a great price.      

  • Fits all 1-1/2" - 2-1/8" Pipes
  • Measures 7-1/4" x 3"
  • We recommend Anti-Seize on all exhaust fasteners.

The latest in muffler packing technology. Spec 31 high performance muffler packing resists breakdown up to 1400°F, is universal, and is easy to install.

  • Kits come in 2 lengths - 15" and 19"
  • Pillows can be trimmed to length to fit different mufflers.
  • Includes a cap stuffer to fill packable end caps.

Re-pack your silencer with this pro-quality, three layer packing system and restore lost power and sound control.

Kit includes:

  • 60"x20"x1⁄4" glass mat.
  • 7"x20" stainless wool
  • 8"x20" stainless mesh
  • Twelve 3⁄16" rivets
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Temporarily out of stock, No current available ETA.  Ordering now will reserve yours.

Replacement Exhaust Pipe Retention Spring

  • This swivel spring replacement will work on nearly any exhaust system with a similar spring.
  • Made from stainless steel, and has a high temp silicon sleeve to protect exhaust component finish.
  • Made by Akrapovic, 60mm size, SOLD EACH

Set your bike apart with a custom exhaust look. Withstands direct heat up to 2000°F.

  • 2 inches wide and 25 feet long
  • Available in black or natural
  • 4 stainless steel tie wraps

Adhesive heat shield for your new side panel plastics to protect it from the heat of your muffler.

Precision cut from heavy gauge material.

Extremely durable design.

Push/Pull design for hard to reach places.

Soft but durable PVC coated handle.

Sours: https://procycle.us/model/honda/crf250l/exhaust

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Crf 250 exhaust honda

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CRF250L Simple Exhaust Mod! add 1hp! DIY free \u0026 easy

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