Go Back   Motorcycle Forum > Motorcycle.Com General Discussion > Motorcycle Mods and Maintenance

Reply
 
Thread Tools
Old 07-29-2009, 09:51 AM   #1
lari
Registered Member
 
Join Date: Jul 2009
Posts: 22
Default yamaha fzs 1000 with or without exup???

hi guys i´m finding an answer about a lil´ modification on a fzs 1000. i want to change the exhaust (not complete) just a slip on but i think that i may do some modification in mapping..is that so?
i saw in a r6 a gytr exhaust that eliminates the exup...what i lost & win??
sorry about my mohican-english!!
lari is offline   Reply With Quote

Sponsored Links Remove Advertisements
Motorcycle Forum
Advertisement
Old 07-29-2009, 09:58 AM   #2
Kenneth_Moore
Registered Member
 
Kenneth_Moore's Avatar
 
Join Date: Jun 2007
Location: VIsiting the GIft Shop in the Pit of DIspair
Posts: 7,118
Default

exup "tunes" the exhaust for better low and midrange power while retaining the top-end; usually incompatible goals. If you tear it out to put in an aftermarket exhaust, you'll get a lot of high end track power, but your bike will suck on the street.

Talk to the exhaust dealers tech people and/or the exhaust manufacturers tech support. They'll tell you which slips ons are ok w/o remapping and which aren't.
__________________
www.kennethmoore.org
Kenneth_Moore is offline   Reply With Quote
Old 07-29-2009, 10:25 AM   #3
acecycleins
Founding Member
 
acecycleins's Avatar
 
Join Date: Jun 2007
Location: North Georgia
Posts: 4,129
Default

Yamaha has been building EXUP exhaust for bike for 20 years. The valve builds back pressure, which builds power. Some companies adapt modern exhaust without it becaue they know that re-mapping isn't difficult. I believe you don't mess with technology that is proven. I would buy a "can" designed for the EXUP before I consider removing it.
__________________
"Slack" - a state of being in which everything flows smoothly.....a frame of mind so at ease that the universe naturally cooperates.
acecycleins is offline   Reply With Quote
Old 07-29-2009, 10:44 AM   #4
lari
Registered Member
 
Join Date: Jul 2009
Posts: 22
Thumbs up that´s right!!!

ok!!! i share your opinion!!! but is there some manufacturer who sale a canister with exup on it?? cause i don´t really like the oem!!
thank´s for answer that fast!
lari is offline   Reply With Quote
Old 07-29-2009, 10:47 AM   #5
acecycleins
Founding Member
 
acecycleins's Avatar
 
Join Date: Jun 2007
Location: North Georgia
Posts: 4,129
Default

Quote:
Originally Posted by lari View Post
ok!!! i share your opinion!!! but is there some manufacturer who sale a canister with exup on it?? cause i don´t really like the oem!!
thank´s for answer that fast!
The valve in most of the units is in the mid-pipe. I'd check Leo Vince and Yoshimura first. Then I'd check out White Bros.
__________________
"Slack" - a state of being in which everything flows smoothly.....a frame of mind so at ease that the universe naturally cooperates.
acecycleins is offline   Reply With Quote
Old 07-29-2009, 11:15 AM   #6
Kenneth_Moore
Registered Member
 
Kenneth_Moore's Avatar
 
Join Date: Jun 2007
Location: VIsiting the GIft Shop in the Pit of DIspair
Posts: 7,118
Default

Quote:
Originally Posted by acecycleins View Post
I'd check out White Bros.
You got something against Black Brothers?

Kill Whitey!
__________________
www.kennethmoore.org
Kenneth_Moore is offline   Reply With Quote
Old 07-29-2009, 12:29 PM   #7
acecycleins
Founding Member
 
acecycleins's Avatar
 
Join Date: Jun 2007
Location: North Georgia
Posts: 4,129
Default

Quote:
Originally Posted by Kenneth_Moore View Post
You got something against Black Brothers?

Kill Whitey!
it's the high pitch whaling that gets to me- lol!
__________________
"Slack" - a state of being in which everything flows smoothly.....a frame of mind so at ease that the universe naturally cooperates.
acecycleins is offline   Reply With Quote
Old 07-29-2009, 12:36 PM   #8
The_AirHawk
Founding Member
 
The_AirHawk's Avatar
 
Join Date: Jun 2007
Location: Leanin' Tower O' P-P-P-P-POWAAAAAAAAA!!!!
Posts: 11,491
Default

Quote:
Originally Posted by acecycleins View Post
it's the high pitch whaling that gets to me- lol!
Ah, those crazy Japanese and their Whaling Vessels!

When will they EVER learn - you just can't flush a Blubbercake........
__________________
Parfois, on fait pas semblant
Sometimes, it's not pretend
Oderint Dum Metuant
Let them hate so long as they fear
политики предпочитают безоружных крестьян
Politicians Prefer Unarmed Peasants
Nothing to see here, Citizen. Move along now...
The_AirHawk is offline   Reply With Quote
Reply


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off