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Photo by Marc Gibaud,
Clouds on Tres Cerros and
Mount Fitzroy, Argentinian Patagonia



 
 
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Old 23 Mar 2014
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I hope your research and study include looking at recent history in gas flow and induction technology in modern motorcycles. The Japanese have made an art form of these areas and have made HUGE strides in performance while being able to meet ever more stringent noise, weight and space limitations.

How do they do that?

An integral part of any exhaust system is intake flow and efficiency. Air box design is HUGE and the Japanese (and Italians) have made huge inroads using very advanced computers to analyze and design air boxes and direct air flow to max out power, yet be quiet. (not so easy)

In terms of materials ... it's not just Akrapovic using Titanium. Japanese sport bikes have used Titanium in their exhaust since the mid 2000's ... stock, from the factory. Where have you been? In fact, I bought a used 2005 GSXR 1000 Titanium exhaust can to adapt to my DR650 single. It's a perfect fit.

I hope in your research you look at the elaborate 3 chamber exhaust designs the Japanese have created ... keeping things quiet but still allowing tremendous power ... and power that goes UP and UP every year.

How do they manage that?

Answer: they've been hard at it since the early
1980's or before. 30 plus years of very expensive research has brought many improvements. The Japanese way is slow evolution ... never revolution.

Look into it ... I think you may be surprised to know just how much work goes into both intake and exhaust systems done by the OEM's. I wish you luck in your endeavor! Maybe you can design something better than the thousands of engineers who've been doing it for the last 30 years!

I'd recommend going to Japan and taking a factory tour. Ask to see the R&D facilities. I visited Yamaha in mid 90's. Very educational for sure. Then have a very close read of the latest Euro lll and lV rules regards exhaust and intake noise. Here in the USA we are likely to soon have exhaust checks every other year. Any NON STANDARD exhaust is now illegal ... but not enforced. This is all changing. The Japanese are ready to meet this challenge.
Is Akrapovic?
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