Installing complete 993 exhaust on 964?
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From: Vancouver Island, BC , Canada
Installing complete 993 exhaust on 964?
I am toying with the idea of fitting a complete 993 exhaust on my 964. I have the heat exchangers already and know the right side flanges needs to be turned 90 degrees, no problem. I am thinking of a DACH X pipe from headers to mufflers that should be straight forward. The 993 mufflers is what I am concerned about, will they fit the 964, I have read that with slight modifications to the top of the muffler and to the rear bumper supports, they will fit using stock mounting hardware; IS that the case? Any insight and help will be greatly appreciated.
Thanks in advance.
Thanks in advance.
Thread Starter
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From: Vancouver Island, BC , Canada
O.K. If this is not a good idea, which other possibilities do I have for mufflers or muffler using the 993 HE. I like the idea of using the stock system, but am open to any suggestions.
Racer
Joined: Feb 2011
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From: Chester County, PA
I know many other 964 owners have been toying with the same idea, including myself. 
I found someone in Maryland (I believe) who would do the flange removal and turn 180 deg., and he has some muffler options you can discuss this with Him. Here is his contact Info:
http://instant-g.com/Products/Exhaus...Out/index.html
I am at the same point where I want to pull the trigger on this, but need additional input from thos who have them. I know they are out there,..
Keep us posted of your progress
I found someone in Maryland (I believe) who would do the flange removal and turn 180 deg., and he has some muffler options you can discuss this with Him. Here is his contact Info:
http://instant-g.com/Products/Exhaus...Out/index.html
I am at the same point where I want to pull the trigger on this, but need additional input from thos who have them. I know they are out there,..
Keep us posted of your progress
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I am toying with the idea of fitting a complete 993 exhaust on my 964. I have the heat exchangers already and know the right side flanges needs to be turned 90 degrees, no problem. I am thinking of a DACH X pipe from headers to mufflers that should be straight forward. The 993 mufflers is what I am concerned about, will they fit the 964, I have read that with slight modifications to the top of the muffler and to the rear bumper supports, they will fit using stock mounting hardware; IS that the case? Any insight and help will be greatly appreciated.
Thanks in advance.
Thanks in advance.
the issue for you is the narrow a restrictive fenders that just don't have the room for the side mufflers.
Rather than side mufflers why not think about light weight rear mounted alternatives similar to what was used here, both Coast and Burns offer mufflers that might work
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From: Peachtree City, Ga
Bill is right, to fit the side mufflers you need to make some serious mods to the fender well area . Right side is the worse as you need to move the oil filter and oil lines. Plus fabricate mounting brackets. It would be easier to have a center muffler system married to the 993 headers and then route the exhaust like a stock 964.
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Thread Starter
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From: Vancouver Island, BC , Canada
Thanks guys, it looks more and more like the best solution is the muffler across the back, too much trouble fitting the 993 mufflers. I know from conversations with Steve Weiner that a 2 in 1 out Monty or Dansk muffler across the back is a very possible solution, and by far the easiest way to go, will give that some more consideration.
Racer
Joined: Nov 2001
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From: Vienna, St. Gallen, Stuttgart - Europe
So width of body seems to be an issue. However, ages ago, someone posted pics of a conversion on this forum. Something like ten years ago...
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Since I took the pics above, I take the liberty to correct Bill: actually it was the 964 RS 3.8 that used a 993-style exhaust. The usual 3.6RS uses the same exhaust like any other C2/C4.
So width of body seems to be an issue. However, ages ago, someone posted pics of a conversion on this forum. Something like ten years ago...
So width of body seems to be an issue. However, ages ago, someone posted pics of a conversion on this forum. Something like ten years ago...
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From: Beverly Hills, Mi.
There are two styles of 993 heat exchangers: the Bischoff ones exit at a 45 degree angle and the Gilllette ones exit parallel to the bumper.
The flanges that meet up with the engine have to be flipped for the right hand bank. Building a muffler shouldn't be a big deal. If anyone is interested contact Ben at M&K Exhaust. He has recently purchased a 964 RS America replica and is developing mufflers for the line. He's done headers for Turbos using Bischoff heat exchangers (I own a set; they are outstanding and were not a fortune compared to other turbo headers) so he is familiar with the hardware.
The flanges that meet up with the engine have to be flipped for the right hand bank. Building a muffler shouldn't be a big deal. If anyone is interested contact Ben at M&K Exhaust. He has recently purchased a 964 RS America replica and is developing mufflers for the line. He's done headers for Turbos using Bischoff heat exchangers (I own a set; they are outstanding and were not a fortune compared to other turbo headers) so he is familiar with the hardware.
Last edited by Metal Guru; Feb 5, 2012 at 09:22 PM. Reason: spelling
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There are tow styles of 993 heat exchangers: the Bischoff ones exit at a 45 degree angle and the Gilllette ones exit parallel to the bumper.
The flanges that meet up with the engine have to be flipped for the right hand bank. Building a muffler shouldn't be a big deal. If anyone is interested contact Ben at M&K Exhaust. He has recently purchased a 964 RS America replica and is developing mufflers for the line. He's done headers for Turbos using Bischoff heat exchangers (I own a set; they are outstanding and were not a fortune compared to other turbo headers) so he is familiar with the hardware.
The flanges that meet up with the engine have to be flipped for the right hand bank. Building a muffler shouldn't be a big deal. If anyone is interested contact Ben at M&K Exhaust. He has recently purchased a 964 RS America replica and is developing mufflers for the line. He's done headers for Turbos using Bischoff heat exchangers (I own a set; they are outstanding and were not a fortune compared to other turbo headers) so he is familiar with the hardware.
The mufflers are also somewhat different but are interchangeable, on the left are Bischof with a removeable sealing doughnut on the right are Gilette w/ integral doughnut
here's the doughnut
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From: Vancouver Island, BC , Canada
Metal Guru is right in that there are 2 different HE designs for the 993. The Bischoff HE's for the 1995 model 993 sans varioram had oval exits that were angled more towards the back than the later Gilettes that have a more rounded exit with a triangular flange. I have a set of Bischoff 1995 HE pictured below. In the smaller picture you can see the difference between on the DACH X pipe, top one is for Bischoff, bottom is Gilette.
