I just installed the Velocity Stacks on my 05 R1. The only other performance mod i have right now is a gutted cat (filter is in but waiting to buy PCIII, also waiting for baffles) Anyway these things are amazing. My bike is stock tuned and it performs amazing with the stacks.
Test rode it today after the mod which took 25min and amazing results. Before: The front wheel would pull up in 1st and 2nd if I was really hitting it hard and almost trying to get it up. After: The front wheel will come up easy in 1st and 2nd when im not even trying to, I must be more cautious now. The power has greatly increased from 5k and beyond.
I recommend Strongly AAAAA+++++++++++
__________________ To Date:
Hot bodies flush mounts
Shogun Crash Kit
Blaster X Taillight
Factory Pro Velocity Stacks
BMC Race Filter
On the Way:
Powder Coat Rear sets and Passenger
Powder coat Cans and Y-pipe
520 -1 +2 conversion
I did FP V-stacks first, then PCIII, the BMC race filter, then Arrow headers, then ignition module with Graves ign map and finally Akra Y-pipe thru stock cans. I have thought of putting a nice set of slip-ons on but the cost and additional sound are something that stops me for now.
Power from idle on up is improved, from 5k up it's real strong. Running stock gearing and my buddy Mattf is running slip-ons and a 16 tooth sprocket and with roll ons we're dead even til he hits the powerband(7k ) and then starts to pull creep me but later I catch him(I'm lighter). I ordered a 16 tooth sprocket recently after seeing it only raises the rpms about 400 at 70mph but really boosts the "get up and go"
It takes alot of additional Hp to over come better gearing and the stock gearing is not ideal for pulling off strong roll ons. High speed runs with higher Hp,maybe(many variables) !
at full top end there is not enough gap........ y would a tune up centre ask me to try and get shorter stax...... ?! don't know,just asking......... also,he worked fro Ten Kate race team........ either he's talking a load of b/s or.....
Dude!! ..the 07 and up already have variable length v-stacks(their lenght is computer controlled) ...you don need to buy anything.
M 4C8-A4460-80 ?477,37
AIR FUNNEL SET
For improved air flow (no variable intake function). Hence the words - )no variable intake function) for 07/08 R1........ depends what you need, is what u'll get...... pls don't dis a fellow R1 rider if you not too sure....... cheers bud or cheers dude!!(you'll find some on the YEC site - for racing purposes) :-) oh, EDIT - 1: pass on to next reply.