Arrow Race Headers for 1100

[Amlethae]

I'm having a bugger of a time finding any details about the headers pictured here.  What material are they made out of?  Are they a larger internal diameter than stock?  Etc etc.  I don't care about the slip-ons, I'm just thinking about going this route to get rid of the exhaust flapper, but for the price (~$550 on fleabay) they better have some other benefits!

Anyone know anything about these?

[mattc7]

I don't know about diameter for sure, but www.arrow.it has a dyno chart with their full system, slip, and stock.

The headers seem to add a couple ponies, (read 1 or 2), but looks like a slightly smoother graph throughout, with a bit more in the midrange (3 or so)

This could be due to a wider piping, but may be solely the effect of removing that pos valve.

Either way, the arrows are  going to be much prettier than stock 9/10 times.

They have a US distributor in Vegas, who's very knowledgeable too

[garp2112]

As Mattc7 states, the US Distributor is very helpful.  His contact information is:

Greg Centuori
Arrow Exhaust, USA
(702) 651-6940
info@arrowexhaust.com

[ungeheuer]

You'll have a bugger of a time trying to fit those Arrow headers to your M1100 too.  Unless they reversed the image in that pic  

[Amlethae]

You have a bugger of a time trying to fit those Arrow headers to your M1100 too.  Unless they reversed the image in that pic 

I think the picture is of the Aussie version... For the US the pipes are on the right side.  Something about fluid down drains...

[Raux]

dont' you just love ad writers for motorcycle parts, that don't ride one

[M1100]

subscribing to keep tabs....  interested to see what is found out!

[rosstermyer]

I called Arrow USA and was told that the racing collectors are made of stainless, they are larger diameter, smoother bends, good gains seen in the midrange, and their welds are much more awesome looking.