I'm looking at buying the Pro Circut T-4 exhaust for my Z.

1. Anybody use it, or know someone that has?
2. What about jetting, what do I need
3. I hear alot about removing the air box lid, but i tend to find water, do I absolutley have to remove it?

Thanks for any suggestions

 

I just bought a Pro Cicuit t4 Silencer (not Headpipe) for my LTZ250. I am returning for a couple of reasons. 1. the silencer end pipe is larger that the head pipe on the quad. The diameter is larger and causes air to escape at the joint. Makes for hot gases around the leg. YOu would think that if they make one for that bike, it should fit snuggly. The second reason is that it did not help the performance one bit. But that is for a 250.

 

my friend has a slip on pro circuit and he loves it, he took off the lid. but if you take off the lid you need to jet it a little more than if you're not taking it off. and no you dont have to take off your lid but you will gain more power