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PC T-4 Exhaust

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I'm thinking about getting the T-4 and was wondering, those that have them, what end cap are you all running?

Thanks!

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I have a 400 mxc and I am running the t-4 with the two in. end cap it came with and the bike rips-way better low end response!!!! I ran into a guy on the trail today that rides a 520 sx and he said the one and a half in. end cap made a big difference compaired to the two in. GOOD LUCK

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I have heard a lot of good about the 1.5" end cap also. So, I ordered one today. I will post my thoughts on the difference.

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Chris, The guy with the 520 said he saw an emprovement everywhere. I asked the guys at pro circuit which end cap they recomended for the 400 and they said the 2 in. but I can't wait to hear from Strick to see what he thinks of the smaller cap. I'm running stock jetting and it runs great!! GOOD LUCK

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I've also read on some other posts that the 1.5 one works well for better low end on the 400. Awesome info guys! Thanks and keep the posts coming!

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A friend of mine has an 02 400EXC with a P.C. T-4 on it and loves it, the instructions said no jetting changes are required and his bike runs great, he's running the 2" end cap.

I've got a 01 520EXC and I'm running a White Brother's R-4, it's basicly the same as the T-4 but it's a little longer and larger in diamiter, it runs great, no jetting changes required on it either.

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The 1.5 is definitely an improvement down low, not much difference in the mid, and takes away from the very very top. It took about 2 minutes to get used to then the bike seemed the same. It did give it some extra something when I was climbing today in the lower rpm range. Overall, I am keeping it on and the 2" can stay in the trailer tool box.

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Strick, thanks for doing the reserch on behalf of the 400 crowd. Would I be correct in saying the smaller end cap doesn't realy do that much to improve overall performance? Is it worth the dough? Thanks as always Dan

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If you were running tight stuff all the time, and never getting on 'top' of the bike, then yes. Otherwise no.

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