Hey all you guys out there has anyone had any experience with the T4 pipe from Pro circuit? I'm looking at this pipe. I would just like to know if there pipes are as good for four strokes as they are for two strokes.

 

I used to read dirt bike magazines, and they loved Pro Circut 4-stroke exhaust. They claimed Pro Circut made the best performing YZ400 pipe on the market. I called about the T4, but never got into performance. Looks cool and isn't very expensive.

 

I bought a T-4 headpipe and silencer for my 400ex and I really like the silencer, but there is one bad thing when I recieved the pipe I took the stock headpipe of to put on the Pro Circuit and after I got the headpipe all the way on and went to put the silencer on, the headpipe was too short, yah bad deal so I called the factory and they said it was their mistake that the first shipment of headpipes were too short. I had to send it back another week of waiting, but they are paying the shipping so no big deal. I got mine from majic racing they might have alot of the too short pipes I would ask before you buy.

 

So the power seems to be good with the pro circuit. Does it have a spark arrestor? I like the way it looks, small compact. Has anyone used the Yoshimura pipe? What kind of gains?


Woodrider 400 00, 400ex stock except for Renthals.

 

The Pro Circuit ad in Dirt Wheels June '00 says the T-4 has a removable spark arrestor.