Saturday, November 14, 2015

2015 R1 Yoshimura Alpha1 3/4 Exhaust System

 I excitedly ripped open the Yoshimura box to drool over the lovely goodies inside. I was not disappointed. I've always wanted a Yoshi system and now that I finally have one I'm rapt. The quality of the pipe is outstanding. I'm very impressed. I want to hear the sound of it within minutes of opening the box.

However I have to wait, why do I have to wait? I want to hear it now damn it. It's late to put it on so I have to wait a night then I can rip into it. However I can weigh the exhaust to see what the difference is between the new system and the stock exhaust with that big cat box underneath. I reckon that there's 10kg in that thing. The new Yoshi can is 2.31Kg and the link pipes weigh in at 2kg for a total of 4.31Kg.

Thursday I get home from work and get all my tools together to pull out the stock system and put in this work of art. After quite some time of dismantling bits an pieces it all comes together. I put all of the bits of the stock system on the scales and it comes in at a massive 8.95Kg. That's a 4.64Kg saving on the stock system. Quite a bit of lard in there.

Stock Exhaust

Yoshimura 3/4 Alpha Stainless/CarbonCap
I got some isopropyl and gave the system a nice clean up before starting it up so that none of my dirty finger prints get burnt into the lovely link pipes or exhaust can. 

So here is my beautiful 2015 R1 with 3/4 Yoshimura Alpha 1 system installed. I hear you say what's it sound like? Let's not keep you in suspense any longer, listen to this bad boy in all it's glory. Watch for the flames.....


  1. I was going to comment "why bother?" But after hearing the Yoshi, shit, it will be worth the noise fines to hear that thing at full flight.

    1. It's the bike Yamaha wanted to design but wasn't allowed.
      Yes why bother at all. It's sounds horn up close and personal.

  2. I was going to say the same as Dave but crikey mate, that sounds absolutely fan-bloody tastic! Completely changes the bike and doesn't sound too intrusive. Any re-mapping required? Knowing the price of those things, you have a wife in a million :-) !

    Nice one!

    1. Hi Geoff
      Yes I have a very forgiving wife indeed, especially seeing as I'm buggering off for a week long bike ride this week.
      I'll be getting the ECU flashed monday.

  3. I was thinking the same thing but what a difference. It's like a completely different bike!