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Join Date: Dec 2001
Location: New Jersey
Posts: 2,093
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If I install a Borla muffler and,...
... keep the stock exhaust pipe diameter, will I loose back pressure? I also have a some what of a free flow CAT too. Will I loose backpressure If I have a free flow cat and a Borla muffler using the stock exhaust pipe diameter?
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{1987}944S - (SOLD). |
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02-01-2003, 07:02 AM
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Join Date: Jul 2001
Location: Edmonton, Alberta, Canada
Posts: 4,530
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You will loose some but not much that will make a difference.
If you want to see how gutless an NA can be. Pull the exhaust out in front of the CAT and drive it around (it will be a little noisy). You will be lucky to get it up to 60 mph. Now go and fix your head already. 
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Alex - PCA Polar Region - Boxster Muncher 86' 944 Turbo - Megasquirt - 326 rwhp/340lbft @ 18 psi SOLD www.edmontonhomelife.com www.edmontonrealestate.ws |
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02-01-2003, 07:28 AM
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Location: , NJ,USA
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huh since i have everything but my exhaust manifold ill have to try that for fun
i did run it whle the cat and all was off and man talk about noise an open pipe harley had nuttin on it
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1987 924S black on black , does it get any better? |
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02-01-2003, 08:57 AM
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Location: Brighton UK since 11/2012
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You can install a Borla, but the engine still won't run without the head on..let's get it running properly first??
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From November 2012; Precision Porsche Specialist Sussex UK, +44 (0)1825-721-205 2001-2012 Gerber Motorsport Inc. 206-352-6911 07.15.06 1996 Ducati 900SP. Suprisingly enough, it's red 08.16.09 1999 Kawasaki ZRX1100. Green. |
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02-01-2003, 09:55 AM
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HA HA HA, true.
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{1987}944S - (SOLD). |
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02-01-2003, 10:53 AM
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Join Date: Jun 2001
Location: Baltimore Md, USA
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Overkill. I put a B&B cat back system on my 87 944S. I really did feel a bit more torque in the midrange. I was once told by B&B that the "S" needs very little back pressure and runs better than other 944's with less back pressure. be sure to disconnect the battery so the benifits of the exhaust will come into play sooner. If you do not it may take several hundred miles for the DME to adjust and make full use of this mod.
- Ross 944S/968 conversion |
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02-01-2003, 11:54 PM
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Location: New Jersey
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Where can I look at some B&B exhaust systems? Do they have a site?
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{1987}944S - (SOLD). |
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02-02-2003, 05:25 PM
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