Looking to put a set of headers on my 96 993 track car. Any recommendations from experience? As well, anybody selling a set?

Thanks in advance. Mitch in Miami. :-)

 

Hi Mitch,

From what I understand, 993 headers don't add any power, unless your engine has been heavily modified with the proper cams.

 

+1

 

The one benefit of headers is that they are lighter (assuming the cats get eliminated also). They might help some on the high end of the rev range but if the only reason for them is hp, you ought to look elsewhere.

 

I am looking to lighten up the whole back end. Will be dropping the cats and doing a super cup type of muffler system with headers. Just looking to see if anybody has something that they would be interested in selling at the reasonable price.

It's a track car so weight is important and, of course, it has to sound awesome. :-)

 

I just went with the bypasses and super cup mufflers. Headers are quite a bit pricier from what I recall. Friend of mine used some headers that were termed 964 style. They had heater boxes, I think he got them from Fabspeed, they could be run with or without mufflers.

Either way be prepared for a very loud car, hope you don't have any noise restrictions at your tracks. My set up was around 108db IIRC.

 

Mitch,
I would say this is the way to go if you don't need heat:

http://cgi.ebay.com/ebaymotors/Porsc...spagenameZWDVW

(no affiliation, yada, yada )

Add a set of cup cams & you should see some gains even sticking w/the 3.6.

PS: I had a '97 cup once upon a time. You will love the sound if you run them open or with a cup cat. No more street use though at that point

 

Here is a Fabspeed Cat Bypass I just saw on Craigslist for $150. (No Affiliation, etc.)

 

I have German headers (no heat exchangers) and 100 cell cats with rest of the system fabricated by me (no mufflers). If interested, I can make another set.

Pretty damn light and honestly meybe best sounding 993 I've ever heard.
Sounds kinda like a mix between Porsche & Ferrari (headers are equal length and exhaust gasses between both side get "criss crossed" so that's why the sound is different from what you normally hear).

You're in Miami so why don't you join us for our South Beach Breakfast Club this coming Sunday and hear them out.

 

Finn: Do you have a pic of your headers?

Anyone know if these are cup headers?

 

I've never heard of an aftermarket exhaust system creating more power on a 993, and from people I know who own shops and modify 993's for a living, aftermarket exhausts almost always reduce power. Does anyone have any actual dyno data on headers?

 

Watch this space. We will be fitting a set of 9m 993 headers to a stock NVR sometime in January and will post before/after figures. The car has had a remap and is currently running on cat bypasses, so as it arrives it will be dyno's, and then once the headers are fitted it will be re-mapped and dyno'd again - which will thus be a true representation of the benefit (or otherwise) of a proper set of headers on a stock 993 engine. In case anyone missed the previous thread on the 9m headers, I am talking about an equal length cross-over design, no cats with silencers running less than 105dBa.

 

Those look like cup headers.

Unfortunately I don't have pics of my current set-up. It's equal length headers, sport cats that cross over and then no mufflers, just short and not very large diam. pipes.