Re: Akrapovic exhaust system for curvy?
 

If you want to buy a new one, take a look in the VS. They are selling Yoshimura systems over there for $740 + shipping costs. I think this is $740/2=£380? Nice price, no? But the question is, do they gain the same or less, and do they look and sound the same (I don't like them thou)?

I got also an Akra system and to be honest, even lost 1bhp with it when I installed it after having an slip on. Notice there were 10000 km's in between the 2 runs and some trackdays. So the engine can have lost a few bhp's.

At this moment I have 80 horses running at the rear wheel with the system, the cam-swap and dyno-jet. Not bad me thinks...

Re: Akrapovic exhaust system for curvy?
 

So with these mods how much longevity will be lost?

Re: Akrapovic exhaust system for curvy?
 

If you import it, you might end up getting taxed on it though, not pretty.

Chris, that's the question isn't it... Race End has pretty much the same setup as me, I think realistically there's no big loss of natural life as long as it's set up right, but, there's an increased risk of a shorter term catastrophic fail because of the higher acceleration forces acting on the crank and rods. There'll be a wee bit of increased top end wear because of the more aggressive cams, mind, and the filters are slightly less efficient.

So, if it doesn't spit a rod or, more likely, spin a bearing or snap the generator end off the crank, or some other epic fail, an SV motor's good for 100,000 miles or more no probs. Maybe ours are now good for a wee bit less, but that's not much of a concern, it's the CRACK! noise that we have to worry about.

But I'm not that worried myself. If it does blow up, I've got a spare crank :mrgreen: And it does get really complicated, frinstance, mine pulls from 2500rpm and it's as strong or stronger for a band about 3000rpm wide as a stock SV is at its absolute peak. So, yes, more power causes more stress, but it means I'll sometimes be riding at 6000RPM where most people would drop a gear and ride at 7100RPM or similiar- and dropping the engine speed massively decreases the stresses.

In short- I do not know. But probably not too bad, as an educated guess (not mine, that's the more educated guess of people who really know this stuff, I just copy them like a chimp). Once you start adding moving mass or maximum revs, the risk snowballs though