Pro Circuit T4

[Mellow Yellow]

Any one have a T4 on their 400? If so, how do you like it? I'm getting a pipe and I like the T4 but concerned about the noise.
Any recomendations good or bad?

[coryatver]

I had one but sold it for a hmf. The hmf has a LOT more power

[Sparky_20]

most aftermarket systems will be loud unless you get a quiet core. Get am hmf, you wont be disapointed

[81 clark racing]

i have a full t4 system on my 400ex and i love it!! i have no complants. awesome power gains however yes it is loud. sometimes a little bit to loud.

[speedracer13t]

It is an awesome pipe when it comes to power, however, it also has some awesome noise that comes with it.

[Mellow Yellow]

Thanks for your views. There always seems to be a ranger around wherever I ride so I think I'll order the quiet core insert with the pipe just in case.

[81 clark racing]

on the procircuit pipe it says usfc approved and says its a quiet pipe haha i think its a joke.

[procircuit406ex]

Wouldnt trade mine for anything;)