ross79 Wrote:I've done a search but can't get a conclusive answer. I will be getting a hayabusa within a few weeks. It's a 2003 with stock exhaust system and stock pipes.
Does anyone know where the greatest restriction lies? Ie is it the stock pipes, the mid-pipes or the headers? Eventually I'll be looking at getting a 4 to 1 on it, but money will be tight for the next few months.

ross79 Wrote:Reading some of the US site and they seam to think the biggest restriction is in the headers?

kawasuki Wrote:

ross79 Wrote:I've done a search but can't get a conclusive answer. I will be getting a hayabusa within a few weeks. It's a 2003 with stock exhaust system and stock pipes.
Does anyone know where the greatest restriction lies? Ie is it the stock pipes, the mid-pipes or the headers? Eventually I'll be looking at getting a 4 to 1 on it, but money will be tight for the next few months.

Let me know when u are after a 4 in 1. I sell TiForce systems, they weigh in at approx 4.8 kgs for the Gen1, and u get approx 10+ rwhp.

Billy the kid Wrote:What happened on the 12 on the avatar????

I have a full tri oval yoshi with carbon can but it is wondering somewhere between united states and greece!!If it appears here i will let you know!

You will find by fitting a full yoshi that it comes even in performace with a stock 12(some times better on drag racing) on power.

PAAAAAAANNN!!! How do you say "καλοριζικο"??????

spamanglenn Wrote:10kg loss is like gaining at least 3ft/lbs from idle to redline and then when the bikes tuned it,ll go from around 94 ft/lbs to around 99-100ft/lbs with the pipe.So to look at it slightly differently, gaining 8-9 effective ft/lbs is like riding the bike at wide open throttle with 24-27kg off the bike.At part throttle you,ll only notice the weight loss.Horsepower with small airbox mod,filter,pipe,tuned approx from 155 to 168-170.