1. Big-gun 520.99 2. Pro circuit T-4 574.99 3. Bills thunder 500.99
4. yoshimura comp 519.99 5. white bros e-series 519.99 those are they choices that i can get from with that kit...please help this is for the 400ex
which one should i get, they all come with k&n air filter,silencer,header pipe,outerwear cover, dyno jet kit

 

Those are all really good exhausts, I always run Yoshimura, they make a really good product, good power gains, they have a great support team and they will stand behind there product. They also make the TEC kit wich know one wants to use but they are nice to have if you need, they are inserts for the silencer that will quiet down if you go somewhere that you need get the noise down a little bit. I ran white brothers for a while on the 400, and the switched to full Yoshimura exhaust system and loved it. I don't have a lot of info on the other exhausts other than they are good exhausts. My opinion you will love the Yoshi if you choose to go with it!

 

of those choices i'd take the white bros or the yoshi. but seems dirtwhells did a shootout awhile back and had dyno runs with each exhaust the you could look at, seems ct racing always has a very competive pipe also.

 

i think i want to get the pro circuit t-4 and then get the pro circuit graphics but i dunno

 

I had both the white bros and Yoshi, and I would go with Yoshi, just my own two cents!

 

The E-series is a falling apart piece of crap. I would not give our 2 pipes away, tht is how poor the quality is on the white-bros.

 

the yoshi is a great pipe but u didnt mention sparks [img]i/expressions/face-icon-small-disgusted.gif[/img]

 

what about the sparks?

 

According to dirtwheels it is the highesr HP gain for the 400ex on a pipe shoot out. It is however one of the most expensive,also.

 

id definetely go with the yoshi