I been thinking about doing some performance mods to my 2001 R1, but I'm worried about the reliability of my bike if I start adjusting everything. Most high-end mods, like full exhaust systems, hurt the low-end of the bike. I have mixed feelings about this because I love the low-end power leaving a red light. What do you recommend I do. Full exhaust system vs slip ons? Jet kits - how complicated? Changing sprocket sizes? Anything else you can think of? Bottom line, I want loads of power, but don't want to suffer the bottom end of the power curve or the reliability of my bike. Thanks for all you help.

R1s rule!

MPJM

Hi MPJM and Welcome to the fourm :hellobye

Ok if I were You I would go with the Full Akrapovic Exaust and a Ivans Jet Kit. I have it installed on My bike and it works great !! There is hardly any complexity to the setup. Its pretty much plug & play !! and the best part is all the info You need is right here. You get great gains with the setup. If You need a little more down on the bottom then go with a new sprocket, but let Me tell You its one sweet setup :rock Basicly its just putting the jets and needles in and drilling a couple plugs out then turning the air/fuel screws out 4 turns and wala runs like a Champ !! Hope this helps ;)

MPJM, I was ones like you, I have a 2001 R1 and I wanted some performance mods and I did not wanted to hurt the low-end also.
First of all high-end mods are like porting the heads or getting bigger pistons.
I have to agree w/ChampionR1 a full Akrapovic Exhaust and an Ivans Jet Kit is the one of the best thing you can do to your bike. YOU WILL LOSE NO POWER. Your bike will be 100% reliable, it’s been done, it’s been proven, and it WORKS. As far as the sprocket goes, If you decide to go w/a full Akrapovic and Ivans Jet kit you may not need the sprocket after all. :D Good lock..

I have to agree w/ChampionR1 a full Akrapovic Exhaust and an Ivans Jet Kit is the one of the best thing you can do to your bike. YOU WILL LOSE NO POWER. Your bike will be 100% reliable, it’s been done, it’s been proven, and it WORKS. As far as the sprocket goes, If you decide to go w/a full Akrapovic and Ivans Jet kit you may not need the sprocket after all. Good lock..


Evan on IVAN's website the Dyno shows you'll have less hp until 4500 rpm because you lose the EXUP. I'm not against full systems by any means, just depends where you want the power, real low in the band or in the middle and upper part.

Smaller front sprocket (or 2 or three up in the rear) will make your bike seem like it's gained some power.

But working on the handling is probably money better spent for performance you can use.

Sounds like the Akrapovic full exhaust with Ivan's jet kit is the way to go. What would an Akrapovic or Micron slip-on do? Only change the sound or add power too? Would the low-end of the power curve (below 4500 RPM) suffer with a slip-on or is this a case only with full exhaust systems? Who makes the best sprockets? Thanks for your help everyone!

MPJM

I do have to admit that those Microns sound pretty wicked :rock

Thanks for your help guys . . . ;)

MPJM

I opted for just a slip on race can & ivans carb kit. According to most dynographs ive seen i should have an extra 7bhp (ish), although im not particually fussed. On the road the bike feels the same as a stock bike, but slightly more powerfull above 6000rpm. But, it does sound ace!

Most people cant ride an r1 to the maximum anyway, so personally im not too worried about trying to get max power out of my bike until ive got bored with it. At the moment i certainly seldom accelerate full throttle in 1st or 2nd.

You will notice the loss of low end leaving a light if you opt for a full system. BFD. :)

Dude, you will not lose any significant power in the low end if you get a full Akrapovic & Ivan's jet kit. You will notice the loss of low end leaving a light if you take out at 2500 RPM's or less. If you are racing of the light or just want to go fast I’m sure you will leave the light at a higher RPM than 2500. If any of you out their have a problem w/a full Akrapovic & Ivan's jet kit over 3000 RPM than you should check it out. After I install my full Akrapovic and the Ivan’s jet kit my bike, the bike improve all around, is a lot easier to do wheelies in first gear and second w/no clutch.:cool:

Everyone seems obsessed with MORE POWER!
I have had loads of bikes, raced, blah, blah, and to be totally honest if you can use all the R1 has to offer on the standard suspension/ chassis then you should be in BSB or something!
get your forks re-vaulved and a new rear shock (ohlins/ penske/ wp) a decent steering damper, then go out and ride it properly. You will be f***ing amazed!
I was dissapointed with my R1 ti'll I did these mods, now I hate being off it!
But if you want more power then a full Akrapovic with a filter and jet kit will give you 10-14 hp and it'll pull like hell above 8000 rpm!
stay ahead!


btw- my 2001 R1 has all these mods and you really dont need to gear down!
:machinegu

I just got off the phone with Micron and I've decided what to get - a full Micron exhaust with the Serpent header (they all come that way now) and the Micron jet kit made for their exhaust. I guess I was always partial to Micron as my friend owns one and it sounds awesome :rock . Anyway, thanks for all your help, I'm sure I be asking more questions as I install it in the near future.

MPJM

Maxprimal

It depends on the can you get. The carbon fiber full exhaust with the serpent is $1099. For the anodized aluminum, the price is reduced to $949. They didn't mention the jet kit was free - they told me it was $119. It would be nice if they threw in the jet kit as a freebie with the pipe - they should considering the price of the exhaust.

MPJM

get a full system,a good jetkit and a flo-commander.