f4i performance upgrades? - Sportbike Forum: Sportbike Motorcycle Forums
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post #1 of 4 (permalink) Old 04-07-2005, 08:32 AM Thread Starter
Join Date: Apr 2005
Posts: 1
f4i performance upgrades?

just picked up an 01 f4i and want to know what kind of performance upgrades i can make. this is my first street bike but i usually ride dirtbikes and atvs. anyways what type of upgrades are there on the market? gearing, exhaust, headers, engine mods? some offering me a two brother exhaust for $50. any major differences with the exhausts out on market? there all straight through right? give me a list of what mods to make first and a rough price. thxs
ilandaze is offline  
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post #2 of 4 (permalink) Old 04-07-2005, 11:28 AM
Join Date: May 2003
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best mod u can do is learn how to ride it..

trackdays, yada yada yada..
docta_freeze is offline  
post #3 of 4 (permalink) Old 04-07-2005, 01:35 PM
Join Date: Jan 2002
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docta is 100% correct & the $50.00 "--exhaust--" sounds like the can itself. Will sound louder & more powerful with a gain of possibly 1-2 hp though you will probably have to make a change in the four carbs.

Now a full system from the exhuaust ports to the rear could give you 5 or 7hp gain though costly.

I have an older '97 Yamaha YZF600r & have not changed the bike bar Kevlar r/brake lines & that is all the bike might need due to me be so fussy over stopping power.

Remember a sportbike is actually a replica or a road racer only street legal.
For it is not a regular road bike that needs such mods to make it closer to a sportbike. There is not to much that can be done other then dramatic changes in the suspension front & rear being very costly & will take quite a while. Still where will you be riding in that you will need the extra power & handeling of the present bike since you are still learning?
Smitty is offline  
post #4 of 4 (permalink) Old 04-29-2005, 05:59 PM
Join Date: Apr 2005
Posts: 4
Erion pipe and power commander. I have the same bike, 01'F41 and these mods give you a little more power and a lot more loudness, important for safety. Also gel grips will held with hand comfort.:
Kyad02 is offline  
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