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Feb 21, 2012 | 08:16 PM

#11

rooti

Ultimate HDF Member

Joined: Jul 2011

Posts: 5,477

Likes: 5

From: New Braunfels, Texas

I just put a propipe on my dyna, already had a big sucker A/C. I got a TTS tuner and had it dialed in by a well known dyno tuner and got 79.64 HP and 92 torque on a stock motor. I love the sound, the look, and the smoothness

Feb 21, 2012 | 11:48 PM

#12

JCleary

Outstanding HDF Member

Joined: Jun 2008

Posts: 2,132

Likes: 25

From: NorCal

Quote:

Originally Posted by mcmahost

I am still looking for confirmation that the thunderheader torque numbers are truely 10% better than most of the other 2 into 1 pipes. Can anyone help me?

96" with se air cleaner and power vision. I just need the right pipe to match up to it and if the thunderheader is really 10% better than the rest then that is what i will choose.

Thanks

Your question is hard to quantify. Yes, it will make more torque than brand X. At some RPM. Brand X may perform better at a different RPM. But will the TH have a better torque curve? Not likely. Best torque curve I've seen is with a Thunderheader X-series and also a good one with a D&D and a proper tune. Here's my dyno sheet from my bagger, stock 96" with Woods TW6-6 cams and a Thunderheader: