Best exhausts... - SV650.org

25-11-08, 10:04 PM

What is the best race exhaust for an SV, 1st generation?

M4 race ? Yoshi makes a "full" system for the SV, is that any good or...?

25-11-08, 10:40 PM

yoshi is the top end of the zorsts if you can fund a full system, dont exspect big power gains tho.

26-11-08, 11:38 AM

In my SV tuning experience for a heavily tuned SV engine an M4 is the one to get, with a lower state of tune a Yoshi/Akra/Hindle would be a good choice.

northwind · 29-11-08, 05:02 PM

Yoshi and Akra are IMO just not good enough for the SV, it's annoying, they both can make great exhausts so there's no excuse to make shoddy ones. They're no better than Hindle and cost, what, twice as much?

M4 are good. Leo Vince have a great rep from over the pond, a lot of the US tuners have dropped M4 now (M4 seem to have moved a bit towards cosmetically pleasing exhausts instead of performance ones). Arrow got some very good comments with their full system, apparently designed specifically for low-tune SVs with an eye to minitwins and the US limited tuning classes. The dyno curves I've seen show them slightly down on power on an M4 but with much better low end.

29-11-08, 08:02 PM

I use M4 and my team mate uses a hindle and we get similar results.

05-01-09, 03:55 PM

There is no real discernable difference between these exhausts they all flow the gases well over the stock tubes and provide added BHP when set up correctly. Having tested all these extensively at Warwick University gas flow lab I would choose the set which suits your pocket. Their main advantage is less bulk and weight so buy as light as you can.

yorkie_chris · 06-01-09, 01:23 AM

I'd like to see more detailed results of those tests if you could post them up, curiosity more than anything.

BanannaMan · 06-01-09, 04:43 AM

And which carb jets were used with each...

06-01-09, 07:57 AM

Quote:

Originally Posted by yorkie_chris

I'd like to see more detailed results of those tests if you could post them up, curiosity more than anything.

+ 1, I assume they were tested on a running engine too? Akrapovic and Yoshimura will tell you they get different results between a flow bench and a running engine.

There is no way a Micron and M4 pass they same gas, fit them to an SV and test it and you will see.

25-11-08, 10:04 PM	#1
pilot Guest Posts: n/a	Best exhausts... What is the best race exhaust for an SV, 1st generation? M4 race ? Yoshi makes a "full" system for the SV, is that any good or...?

25-11-08, 10:40 PM	#2
kwak zzr Guest Posts: n/a	Re: Best exhausts... yoshi is the top end of the zorsts if you can fund a full system, dont exspect big power gains tho.

26-11-08, 11:38 AM	#3
Dangerous Dave Guest Posts: n/a	Re: Best exhausts... In my SV tuning experience for a heavily tuned SV engine an M4 is the one to get, with a lower state of tune a Yoshi/Akra/Hindle would be a good choice.

29-11-08, 05:02 PM	#4
northwind Moderator Mega Poster Join Date: Jan 2004 Location: In the garage where I belong Posts: 17,083	Re: Best exhausts... Yoshi and Akra are IMO just not good enough for the SV, it's annoying, they both can make great exhausts so there's no excuse to make shoddy ones. They're no better than Hindle and cost, what, twice as much? M4 are good. Leo Vince have a great rep from over the pond, a lot of the US tuners have dropped M4 now (M4 seem to have moved a bit towards cosmetically pleasing exhausts instead of performance ones). Arrow got some very good comments with their full system, apparently designed specifically for low-tune SVs with an eye to minitwins and the US limited tuning classes. The dyno curves I've seen show them slightly down on power on an M4 but with much better low end. __________________ "We are the angry mob, we read the papers every day We like what we like, we hate what we hate But we're oh so easily swayed"

29-11-08, 08:02 PM	#5
Sideshow#36 Guest Posts: n/a	Re: Best exhausts... I use M4 and my team mate uses a hindle and we get similar results.

05-01-09, 03:55 PM	#6
coxxy Guest Posts: n/a	Re: Best exhausts... There is no real discernable difference between these exhausts they all flow the gases well over the stock tubes and provide added BHP when set up correctly. Having tested all these extensively at Warwick University gas flow lab I would choose the set which suits your pocket. Their main advantage is less bulk and weight so buy as light as you can.

06-01-09, 01:23 AM	#7
yorkie_chris Noisy Git Mega Poster Join Date: Apr 2007 Location: Halifax/Leeds Posts: 26,645	Re: Best exhausts... I'd like to see more detailed results of those tests if you could post them up, curiosity more than anything. __________________ Currently Ex Biker Now rebuilding a 63' fishing trawler as a dive boat

06-01-09, 04:43 AM	#8
BanannaMan Member Join Date: Feb 2008 Location: Appalachia Posts: 419	Re: Best exhausts... And which carb jets were used with each... __________________ ...Bill *"The Mountains are calling and I must go"*

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