[olbaid_83]

ok im looking at exhuasts for my 05 katana 600 i ran across this scorpian exhaust that claims you dont have to jet your bike to put it on. is this possible or just a load of **** to get you to buy it

 

[axel_2078]

That depends....is it a slip on pipe, or a full exhaust? With a slip-on, there's usually no need to rejet.

 

[olbaid_83]

it is a slip on so is $109 a good deal?

 

[axel_2078]

Since it's a slip-on, they're most likely telling the truth....there's no need to rejet. A slip-on usually involves removing the four bolts holding the stock pipe on and the one bolt around the clamp, putting the new pipe in its place and bolting it back down. As far as price, I really can't say if it's a good deal or not because I don't know. They only way you could really find out is to comparison shop. Check out www.motorcycle-superstore.com, www.denniskirk.com, and JC Whitney's motorcycle section (www.jcwhitney.com).

 

[Clint]

However, you won't see the power gain that's available unless you rejet.

 

[axel_2078]

I think he's referring to a full exhaust. You'd definitely need to rejet for that (or remap for fuel injection), but there isn't significant gain or loss from a slip-on pipe to really worry about.

 

[themeatmanlandry]

If you need to re-jet . . . you'll know. The bike'll be running really lean. I don't know what the symptoms of a lean burn are, but I do know the results.

The engine will run hotter. I don't know what that affects/damages, but it can't be good.

 

[Clint]

My slip-on/jet combo is worth better than 10 hp. I'd say that's significant.

 

[axel_2078]

Did you test it on a dyno to get those results?

 

[Clint]

Dale did.

http://www.holeshot.com

 

[axel_2078]

Oh ok. I've used three different slip-ons and never needed to rejet or remap. Maybe it's a difference in the pipes.

 

[Clint]

EFI bikes compensate to some degree, making a remap less fruitful than a rejet. Again, I didn't say you MUST rejet, just that you make more power if you do.