Arrow Header advantage

stevepsd

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No cat. Less restriction. Can make more power.
 

Maybert

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I love the sound in conjuction with the Akrapovich pipe. They gave it a nice growl.
 

biting_point

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Absolutely!! Before the header, the Akrapovic can sounds just slightly louder and bassier than OEM.. Now with the Arrow Header, its growls perfect!!

Besides power, it also looks nicer compared to your dull blacken OEM headers..
Mine got a blue tinted after I high rev it after installation..
 

hANNAbONE

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...McB :

I think there hasta be more flow with the Arrow header system.

Less (*no??*) restriction and tuned pipes in perfect length..?

gotta be the way to go.

Me, I'm not that power hungry anymore - I didn't buy it to race, or offroad even (*even tho' it's very capable*)

I bought it to haul gear and a pillion, and stay out a coupla weeks around the mountains/country.

If I was serious about squeezing every drop of power outta that twin mill - the Arrow headers would be at the top of the list.
 

mcbrien

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I'm just trying to convince my self that I need both the header and a muffler . I'm not really looking for more power .... It's just what I do .
 

Mellow

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I have just the exhaust and really like the sound. Just a bit more growl. I leave the silencer in but even with it out it's just a deeper growl, I couldn't tell if it was any louder. I'm happy with the OEM power.
 

Tremor38

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Mellow said:
I have just the exhaust and really like the sound. Just a bit more growl. I leave the silencer in but even with it out it's just a deeper growl, I couldn't tell if it was any louder. I'm happy with the OEM power.
R U talking about the Arrow or Akra muffler?...I wasn't aware the the Akra had a Db killer.
 

Karson

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aside from better flow due to no cats, another one is the extra O2 sensor bung for an autotune. if you don't run a PC V + AT or an ecu flash, then you can plug it with the included threaded plug, but you really should have it remappped in one fashion or another - otherwise it'll run way too lean beyond what the factory ecu can accomodate.
 

Tremor38

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Karson said:
aside from better flow due to no cats, another one is the extra O2 sensor bung for an autotune. if you don't run a PC V + AT or an ecu flash, then you can plug it with the included threaded plug, but you really should have it remappped in one fashion or another - otherwise it'll run way too lean beyond what the factory ecu can accomodate.
+1. This is backed up by info from several posters who have fitted the Arrow headers without addressing the fuel mapping. Funny thing is there are still people who 'poo, poo' at anyone trying to tell them this, but they inevitably come to the same conclusion. :D

'Regards,' Tenerator12 :D
 

Karson

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yeah when i mounted the headers, i ran it a few miles before slapping on the pcv + at. i've never heard a bike pop so bad on decel...no bueno.
 

Tremor38

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Yeah, I still have the headers in a box and have been reluctant to spring for a PCV+AT just yet. I've been too busy burning money on touring farkles and riding the snot out this thing. Perhaps this winter will be an opportune time.
 

bacon

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I had my heart set on getting The Arrow catless headers with a re flash and PCV with auto tune.
But the more I think about it the more inclined not to go this route.
Mainly I just wanted to get rid of the cat and the heat assocated with it and dial out on low speed stumbles.
But in all reality I don't need more power yes it might be a good bragging right but realy the power it has is not a hold back for me.
I love the idea of getting rid of all the restrictions bult in to the factory ECM and making the moror run the way it should in all the gears and from idle to red line.
But the difference in cost between just getting a slip on can and going the whole 9 yards is almost 2 grand.
At this point I am thinking that I will just go with the slip on and live with the power it now has.
 

Dallara

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bacon said:
I had my heart set on getting The Arrow catless headers with a re flash and PCV with auto tune.
But the more I think about it the more inclined not to go this route.
Mainly I just wanted to get rid of the cat and the heat assocated with it and dial out on low speed stumbles.
But in all reality I don't need more power yes it might be a good bragging right but realy the power it has is not a hold back for me.
I love the idea of getting rid of all the restrictions bult in to the factory ECM and making the moror run the way it should in all the gears and from idle to red line.
But the difference in cost between just getting a slip on can and going the whole 9 yards is almost 2 grand.
At this point I am thinking that I will just go with the slip on and live with the power it now has.

If you really want to save money, but make the bike run quite a bit better - i.e. get rid of the low-speed stumble, etc. - then skip the slip-on. Instead just get the re-flash. After all, even the most expensive re-flash is cheaper than any decent quality slip-on, IIRC. Hence, it has a much better cost/benefit ratio, and won't make as much noise. Stock mufflers are quite a bit tougher and a lot more reliable than any aftermarket slip-on exhaust, too.

However, if all you are looking for is sound, and want the bike to run no better than stock, and maybe quite a bit worse, by all means... Just get the slip-on. ;)

Dallara



~
 

bacon

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Dallara said:
If you really want to save money, but make the bike run quite a bit better - i.e. get rid of the low-speed stumble, etc. - then skip the slip-on. Instead just get the re-flash. After all, even the most expensive re-flash is cheaper than any decent quality slip-on, IIRC. Hence, it has a much better cost/benefit ratio, and won't make as much noise. Stock mufflers are quite a bit tougher and a lot more reliable than any aftermarket slip-on exhaust, too.

However, if all you are looking for is sound, and want the bike to run no better than stock, and maybe quite a bit worse, by all means... Just get the slip-on. ;)

Dallara
Good points but I am not happy with the sound of the stock exhaust the motor make more noise than it does. I am not wanting a Harley with drag pipes noise just some deep base rumble.
Also if I re flash now but in the future decide to go with the headers and PCV I will have to re flash losing that money twice


~
 

Karson

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Dallara said:
Stock mufflers are quite a bit tougher and a lot more reliable than any aftermarket slip-on exhaust, to

However, if all you are looking for is sound, and want the bike to run no better than stock, and maybe quite a bit worse, by all means... Just get the slip-on. ;)

Dallara
??? If all you're wanting to do is get rid of the throttle dampening (read: stumble at take off) a 20 cent fuse will do the trick in the clutch switch and will save you hundreds over a re-flash. I'm sure that there are other intangibles to be discovered with a re-flash that I'm not aware of, though.

The limitations of the bikes exhaust gas velocity are in the headers and I've yet to hear of anyone having poor running conditions with just a slip on, for what it's worth...throw aftermarket headers on there without proper tuning, then that's a different story. Unless you jack-up tightening the slip-on's clamp around the header's collector pipe, there's very little chance your bike will run worse. I'm too lazy to fire up my google-fu and search for slip-on only dyno results threads, but i'm sure that there's at least a marginal performance increase pretty much across the board...
 
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