2014 YZ450F EXHAUST SYSTEMS.

Brand Yoshimura

86 replies to this topic
  • YzCas

Posted September 12, 2014 - 01:58 PM

#61

I'll just be getting the slip on do you think the header makes that big of a difference? And how does it sound? Loud n burley?:D

. I forgot to tell you when tested the fmf just edged out the doctor d so the performance I bet are about the same I was surprised when I fired the bike up how quiete it is because the 4.1 on my Rmz is loud as heck I believe the resonance chamber helps with noise big time.

  • motojase316

Posted September 12, 2014 - 05:51 PM

#62

I am running a fmf factory 4.1 ti slip on. I find it very loud when I am riding. But friends on the side of the track say it does not appear loud to them.
I prefer the stock system power delivery

  • forgotmyusername

Posted September 13, 2014 - 01:25 PM

#63

I'll just be getting the slip on do you think the header makes that big of a difference? And how does it sound? Loud n burley? :D

A little louder, but mainly deeper instead of such a high pitched snap.


Edited by forgotmyusername, September 13, 2014 - 01:28 PM.


  • yzUSMCf

Posted October 05, 2014 - 11:43 AM

#64

Video I made with the dr.d system! Great exhaust

Watch "FULL DR.D EXHAUST SYSTEM COMPARISON 2014YZ450F FU…" on YouTube
FULL DR.D EXHAUST SYSTEM COMPARISON 2014YZ450F FU…:

  • yzUSMCf

Posted October 20, 2014 - 05:50 PM

#65

Had a problem with the dr.d header burning my boot on the left side so I got some heatsheild clamps from crf's only.com and re used the stock heatsheild works perfect!

Attached Thumbnails

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  • boegey

Posted February 09, 2015 - 10:02 PM

#66

I've used the Yosh, FMF and DRD systems to date and like the Yosh system the best overall. Make sure and pull out the quiet insert as it makes a big difference power-wise. Didn't notice much in the way of added sound but it's new so we'll see after the silencer breaks-in. Also, it's the cheapest system with deals between $500 (ebay) and $550 (RMATV) out there.

The DRD was OK but the silencer looks cheap (e.g. small decals, canister looks like something from a Chinese bike) compared to the others and did melt my boot as mentioned above. The old-school squared-off canister also blocks the rear fender bolts so you have to remove the silencer to change your fender.

FMF was fine, didn't notice too big a change from stock. System looks good on the bike and it held up well. Didn't really like the clip system for the exhaust side number plate but its a small gripe.

Check MXA for fuel map suggestions for aftermarket pipes. I used one of theirs and it worked out well.

I have the two full systems (FMF and DRD) that are in relatively good condition (no dents) that I will donate to anyone that wants to try them before dropping $700 for shipping costs and a small handling fee.

Does anyone sell replacement heat shields for these pipes? I can't believe Lightspeed or other doesn't make a replacement for the stock shields.

Mate was just wondering if you still had these and would be able to send these to me I would be happy to pay all the costs just wanted to try them before I go dropping $1000+ on a pipe

  • mmcdan

Posted February 11, 2015 - 11:07 AM

#67

Mate was just wondering if you still had these and would be able to send these to me I would be happy to pay all the costs just wanted to try them before I go dropping $1000+ on a pipe

Sorry, they are gone.  I may have a Yosh system available in a couple weeks so I will check back with you.



  • MESSMAKER

Posted February 11, 2015 - 04:09 PM

#68

Sorry, they are gone.  I may have a Yosh system available in a couple weeks so I will check back with you.

What made you choose the yosh over the other two? I know you said that the dr. d looked cheap but what about the FMF. I am on the fence over the Yosh or the FMF. Honestly leaning more towards the yoshimura just for the simple fact of the cost and they seem pretty comparable.


Edited by MESSMAKER, February 11, 2015 - 04:09 PM.


  • Mumm32

Posted February 13, 2015 - 07:53 AM

#69

Hey ca412, where did you find those front and rear fender decals??? I have the 2015 450f in same color!!! All I want is the front and back decalsImageUploadedByThumper Talk1423842810.966957.jpg

  • MESSMAKER

Posted February 15, 2015 - 07:20 PM

#70

Just pulled the trigger on the Yosh system, and I can't wait to get it installed. 



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  • Tiago

Posted February 17, 2015 - 02:14 PM

#71

Was considering the ride engineering 20mm clamps and the stabilizer. Whats your thoughts ?

+1

  • jmooney70

Posted February 17, 2015 - 02:32 PM

#72

I run the stock exhaust with a Pro Moto Billet End Cap. This allows me to run in the CA State parks (needs a spark arrestor) and does not mess with my Yamaha suggested FI map settings.

The Pro Moto Billet End Cap is slightly louder than stock.



  • GHILL28

Posted February 17, 2015 - 03:34 PM

#73

I would be curious how that setup compares to a Dubach silencer with the sparky insert.  I have a feeling this pipe makes less torque than stock, even with the suggested maps.



  • boegey

Posted February 19, 2015 - 12:37 AM

#74

Sorry, they are gone. I may have a Yosh system available in a couple weeks so I will check back with you.

alright no worries thanks mate.

  • boegey

Posted March 02, 2015 - 12:11 AM

#75

Sorry, they are gone. I may have a Yosh system available in a couple weeks so I will check back with you.

what did you end up thinking about the yoshi was looking at those pipes

  • boegey

Posted March 30, 2015 - 04:07 PM

#76

Where did those last posts go about the Dr.d slip on the guy was selling

  • GHILL28

Posted March 30, 2015 - 05:11 PM

#77

Post was removed. I'll ship intl if needed. PM me to discuss further.

  • Envisage

Posted April 02, 2015 - 09:20 PM

#78

I just fitted a FULL DR D NS 4 after using a full yoshi for 6 months on my YZ 450 2014

 

Didnt like the yoshi with the silencer insert, removed that & was way better sounding & power. Is however very abrupt of the bottom, too abrupt in fact mainly out of corners, (stock maps).Also think the yoshi build quality was poor. Where the first join is from the engine, vibrates to the point ive had to re weld the little lug that holds the join in place. Both joins dont seal properly even aft sealing them the hi temp gasket cement, TI syst.After about 30 hrs

 

Someone PLS  tell me you can remove the silver DR D silencer, (already removed spark arrestor) & how ?

 

First ride with the silencer in, thought was worse than stock. Felt all chocked up & like it added no benefit !


Edited by Envisage, April 02, 2015 - 10:01 PM.


  • wes513v

Posted April 05, 2015 - 04:44 PM

#79

I run the stock exhaust with a Pro Moto Billet End Cap. This allows me to run in the CA State parks (needs a spark arrestor) and does not mess with my Yamaha suggested FI map settings.

The Pro Moto Billet End Cap is slightly louder than stock.

Hey Jeff :thumbsup:



  • wes513v

Posted April 05, 2015 - 04:46 PM

#80

I just fitted a FULL DR D NS 4 after using a full yoshi for 6 months on my YZ 450 2014

 

Didnt like the yoshi with the silencer insert, removed that & was way better sounding & power. Is however very abrupt of the bottom, too abrupt in fact mainly out of corners, (stock maps).Also think the yoshi build quality was poor. Where the first join is from the engine, vibrates to the point ive had to re weld the little lug that holds the join in place. Both joins dont seal properly even aft sealing them the hi temp gasket cement, TI syst.After about 30 hrs

 

Someone PLS  tell me you can remove the silver DR D silencer, (already removed spark arrestor) & how ?

 

First ride with the silencer in, thought was worse than stock. Felt all chocked up & like it added no benefit !

You'll probably have to remap for the NS 4. Contact Dubach for their maps and you can ask about the insert. They have always been very helpful when I have called.


Edited by wes513v, April 05, 2015 - 04:46 PM.






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