GHL vs Fabspeed
03-21-2006 | 08:44 PM
#16
Burning Brakes
Joined: Aug 2002
Posts: 753
Likes: 12
From: St. Louis
As with most after market exhaust systems from Hyundai's to our super porsches, when adding an aftermarket exhaust you lose back pressure(tq) and gain on the top end(HP).
thanks,
mark
03-21-2006 | 08:50 PM
#17
Drifting
Joined: Jul 2005
Posts: 2,481
Likes: 1
From: Prince George's County, MD
VICE VERSA.
Originally Posted by M Fig
So, back pressure helps torque but limits HP? I would think that for normal driving you would rather have more low end torque over top end HP... Even though the HP numbers go up with aftermarket exhaust, wouldn't you feel the torque more?
thanks,
mark
thanks,
mark
03-21-2006 | 08:51 PM
#18
Rennlist Member
Joined: Jun 2001
Posts: 9,489
Likes: 1,072
From: Ohio
It's hard to tell what you will end up with when playing with the exhaust. The factory has to balance sound with noise regs. and the power band.
I once bought a muffler and chip from Windward, in my uniformed years, and lost 4 hp on the dyno. That was only 1/250th of what I lost from my wallet
I once bought a muffler and chip from Windward, in my uniformed years, and lost 4 hp on the dyno. That was only 1/250th of what I lost from my wallet
03-21-2006 | 09:47 PM
#19
Newbies Hospitality Director
Lifetime Rennlist
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Lifetime Rennlist
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Joined: Apr 2005
Posts: 18,084
Likes: 34
From: Winston-Salem, NC
Originally Posted by Alan C.
It's hard to tell what you will end up with when playing with the exhaust. The factory has to balance sound with noise regs. and the power band.
I once bought a muffler and chip from Windward, in my uniformed years, and lost 4 hp on the dyno. That was only 1/250th of what I lost from my wallet
I once bought a muffler and chip from Windward, in my uniformed years, and lost 4 hp on the dyno. That was only 1/250th of what I lost from my wallet
Well, it dosen't sound as bad if you say "every 1/2 HP loss cost me $125."
03-25-2006 | 07:46 PM
#20
Instructor
Joined: Oct 2005
Posts: 109
Likes: 0
From: Oakland, CA
I bought fabspeed because I was impressed with the quality of the mufflers. I have never seen 996 GHL mufflers, but I have seen GHL products for other marques and was never impressed with the quality.