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Old 09-27-2008, 01:35 PM   #1
Schmitty
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full exhaust school needed

okay here we go... I have an 04 GSXR750 with a power commander, velocity stacks, k&n air filter, and 2 teeth up in the rear sprocket. I am shopping for a full exhaust system and then i will get dyno tuned. The problem i have run in to is i don't know if i should get a yoshi system or an akropovic race system. The arkro is way more costly and i don't know if the extra money will tune to extra power over the yoshi. Also, if i do go with the yoshi i don't know what the difference is between the Ride Smart-3, TRI, and the TRS. the TRI and TRS also have single tip or dual tip and i don't know what difference there would be besides price. maybe a lottle more low end power for the dual tip due to more velocity? I also am pretty stuck on a titanium header for the weight difference. Can anyone explain the difference between the different yoshi systems, akro systems, and which will pull more power with my setup after a dyno tune? thanks for the help.
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Old 09-27-2008, 09:43 PM   #2
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YOSHI IS MADE FOR GIXXERS, I DONT KNOW IF YOU WILL GET MORE HP OR NOT BUT I WILL SAY THEY ARE NOT THAT LOUD , WELL MINE WHER NOT ANY WAYS

I WOULD GO WITH YOSHI ANYWAY!
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Old 09-27-2008, 09:52 PM   #3
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you can call Motorcycles unlimited and talk with Brandon or patrick, they can answer your questions accurately.
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Old 09-27-2008, 10:09 PM   #4
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I like the craftsmanship of the Akra. The Evolution system is the top of the line system for them. Great power and sound.

I like the Yosh TRS Dual tip. The Akra will probably make a little more power than the yosh, but not much...maybe .5 hp. It will be up to you if that is worth the extra $$

All in All the M4 will make the most hp, more than likely. Those things just squeeze every little bit out of your motor and for the money they are a great pipe.

I'd call Patrick at Motorcycles Unlimited and see what kind of deals he can get you.

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Old 09-28-2008, 01:25 PM   #5
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i was looking at the M4 exhausts last night and they do look pretty nice price wise. does anyone know a good website to look for technical reviews/dyno sheets for different exhaust systems. i didn't have anyluck last night.
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Old 09-28-2008, 03:41 PM   #6
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Bottom line is if your looking for the best price just buy the cheapest full system you can, by the time you have it professionally dynoed there may be a 2-3 hp difference between all the available systems and you really won't be able to tell for street riding. As far as the different types of yoshis, the power is all about the same so it comes down to how it sounds and how it looks......
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Old 09-28-2008, 03:55 PM   #7
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Agreed w the above. The biggest difference you will ever see is in weight loss for the system. If there was something the manufactoer could have done to safely squeeze 10hp out of pipes alone, they would have done it.

So, if you have a pair valve system, remove it while you're in there, go with weight saving and program for it afterwards. And program it for what you want out of it. You could program for safer numbers or outright hp.
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Old 09-29-2008, 12:23 PM   #8
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thanks everyone. my wallet likes ya'll.
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Old 09-29-2008, 12:33 PM   #9
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Akra. Evolution system or Ti-Force IMO are the two best choices. I looked and look when I got my exhaust and Those two were best bang for your buck when looking at power and weight savings. Only difference between them is where in the RPM range you get your power. Akro is more for road race type riding while Ti-Force is more for Drag strip
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Old 09-29-2008, 12:37 PM   #10
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And I also learned yoshi....although most say it is made for suzuki....is towards the bottom of the line performance wise from what I have seen/ was told when I was getting my bike dynoed. Most people just get it for zuks because they think it is made for suzuki.
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