Vance & Hines Pro-Stock Replica Exhaust

I seek for long time the Vance & Hines Kawasaki Pro-Stock Replica Exhaust. but i didn't succeed' I understand that not manufacture this model any more
soo.... I decided to build alone!:laugh:
Someone already did something like that ???... will be happy for details and pictures.

you wouldn't be happy with that pipe it is designed for big block 1300 plus with major compression huge cam's and and big carbs 40mm plus it is designed for top end use not for riding around town. it would not work well on the street at all the primary tubes are built to flow massive amounts of air not something you would or could use on the road.

This is because of the big diameter, or the design of the pipe?..
I love the shape of the pipe it well will be wonderful on my bike.

tubes are way too big,probably would clear your front wheel either unless you rake your frame

i change the angle of my frame, the question is, in smaller diameter of pipe there is a problem with the shape of the exhaust system?:blink: ...

Beings the exhaust system should be sized to help suck out the spent fuel, you need the velocity or suction the exhaust systen creaets to help pull it out of the cylinder. Get it too big and it loses lots of that "suction". Smaller the tube, the stronger the suction so you need to mate the right size tubes to the motor you are going to use. The bigger the motor, the bigger tubes you need to pass all that air out of the motor. Too small and the exhaust can become a choke point, sort of, and too be big and you lose the velocity the exhaust gases need to scavenge the exhaust gases. Small motor needs a small tube while the bigger motor can use the bigger tubes. Of course, the whole motor build comes into play but generally speaking, use the smaller tubes on smaller motors. Tube diameter will determine where the motor makes it's power. Large tubes need RPM to work right where the small tubes will make more at lower rpm...where a street motor will be used 99% of the time. The lenght of the tubes determine where peak torque will be made. Small motors can use small diameter and long tubes while the big motors can get away with the larger, shorter tubes as they will make more torque from engine size. That Gold Label pro-stock pipe is large! You'd be better off with street pipe or a regular sidewinder pipe. They also have a PCO pipe that is in-between the regular sidewind and the pro-stock pipe. It will need to have the frame raked also but has smaller tubes for medium sized motors. Figure out what you are using motor for and pick pipe to fit the job.

Thank you my friend on profound answer, I think that I will go for the regular sidewinder pipe, i understood thet is the best for stock engine.

Yea...for a stock motor or one that has been slightly modified, I think you would like it lots better with either the street system or the regular sidewinder. The sidewinder sells new for about $219 or so and the street pipe is about $300...I think. Just remember the sidewinder will limit the right hand lean angle.

if u are curious to know the normal pipe measurements, u can look at this post.

kzrider.com/index.php?option=com_kunena&...mit=20&limitstart=40

U will find that a normal street header has a primary OD. of about 1.5" and a length of about 30" to 34".
as the primaries get longer and thiner the torque curve moves down in the rpm range.

thanks man, great topic.
I ask my self there are all so many talented member here, someone build pipe system by himself...?