Arrow slip on, amazing!

[the Ferret]

Stock pipe usually not replaced for the power..it's for the noise

That not entirely true. I've gained probably 8-10 hp with a full system pc5 etc. For something as simple as unbolting an exhaust and rebolting a new one that's pretty drastic. I. Fact there's little else you can do without cam work to get more power. Arrow makes race exhausts and they make power i have their 4-2-1 header and im very happy with it. For just a slip on 4 hp at 6500 rpm is not bad espessially considering it looks and sounds better than the stock unit. Other more free flowing slip ons have been reported to give gains in the range of 6hp at 7500 rpm which is outstanding. To me the 3500 rpm scenario is a moot point. That's cruising rpm if you want power from an in line 4 your going to have to Rev it. IMHO of course

That not entirely true. I've gained probably 8-10 hp with a full system pc5 etc. For something as simple as unbolting an exhaust and rebolting a new one that's pretty drastic. I. Fact there's little else you can do without cam work to get more power. Arrow makes race exhausts and they make power i have their 4-2-1 header and im very happy with it. For just a slip on 4 hp at 6500 rpm is not bad espessially considering it looks and sounds better than the stock unit. Other more free flowing slip ons have been reported to give gains in the range of 6hp at 7500 rpm which is outstanding. To me the 3500 rpm scenario is a moot point. That's cruising rpm if you want power from an in line 4 your going to have to Rev it. IMHO of course
Yes, not entirely true but in our forum exhaust poll 87.5 percent changed their exhaust for looks and noise, so 9 out of 10 did not do it for the power

http://cb1100forum.com/forum/showthread....light=poll

When you say "I've gained probably 8-10 hp " did you verify that with dyno runs? We have not had a single member (dyno verified) gain 10 hp with any combination of mods including a full system, pc tune and reflash.

I think 2 Bros advertised a 6 or 7 hp gain with their slip on but members have not realized that same gain with their personal bikes. Most with just slip ons who have posted their dyno sheets have been gaining maybe 3 hp in the upper rev range. But that doesn't matter as long as they are happy with their pipes.

I'm not saying don't change your exhaust, but members must be realistic in their expectations when making this mod. Chasing HP on this motorcycle is an expensive exercise in frustration.

Here is an interesting thread with a link to some dyno runs by forum members

http://cb1100forum.com/forum/showthread....light=dyno