964 sports exhaust
- Thread starter philippe
- Start date
mr pg
New member
A cup pipe is all he'll need. They sound fantastic. Depending on year of car, if an '89 you can also remove the cat as only legally reqd from '90 onwards. Makes a slighlty deeper note without. A cup pipe also removes some weight from a good place to lose it. Another option is to replace the the final silncer with a swan neck pipe, but I prefer the cup pipe option. Do not replace both though!Hacki said:
I really fancy the ' Singer' style centre twin outlet, somewhat similar to the modern GT generation Porsche's but I have never seen them advertised, they seem to be manufactured by the specialists such as Singer, Paul Stephens and Rennsport. Has anyone seen a manufacturer of this style of exhaust?
philippe
New member
Thanks for your help guys
is this the sort of thing that you mean.
https://www.porscheshop.co.uk/cup-pipe-964.html
Cheers Phil
is this the sort of thing that you mean.
https://www.porscheshop.co.uk/cup-pipe-964.html
Cheers Phil
Dekker
New member
I haven't any experience of changing the exhaust system but have kept some notes for if I do.
I ran a 964 without cat and primary box and it started to get too loud for trackdays because the pressure on the rear box was too great and loosened some baffles. When I put the primary box back and fitted G pipe not had any issues. I was told the back box wasn't designed the pressures that the primary one does.
I believe you can delete the cat if your car was registered before Sept '92.
To get more hp a better designed exhaust system could liberate up to 10-20hp so I've heard as there is little difference between our engines and the 993 except for the exhaust system. The 993 system has 2 manifolds that remain separate down to the primary box instead of the 964 that combines the output of both manifolds into one before going through the cat and then the primary box.
There's Hayward & Scott who I've heard good reports about.
https://www.haywardandscott.com/porsche/911/964/porsche-964-complete-system-single-outlet.html
They make a twin outlet version too and have a 993 style system, I don't know whether the rear tray is redundant but expect it is.
TT Exhausts I know nothing about, based in the West Midlands who make a single outlet and 2 versions of the twin exhaust, one like the turbo and the other like the GT3.
http://www.ttexhausts.com/porsche-911-964-exhaust/
I ran a 964 without cat and primary box and it started to get too loud for trackdays because the pressure on the rear box was too great and loosened some baffles. When I put the primary box back and fitted G pipe not had any issues. I was told the back box wasn't designed the pressures that the primary one does.
I believe you can delete the cat if your car was registered before Sept '92.
To get more hp a better designed exhaust system could liberate up to 10-20hp so I've heard as there is little difference between our engines and the 993 except for the exhaust system. The 993 system has 2 manifolds that remain separate down to the primary box instead of the 964 that combines the output of both manifolds into one before going through the cat and then the primary box.
There's Hayward & Scott who I've heard good reports about.
https://www.haywardandscott.com/porsche/911/964/porsche-964-complete-system-single-outlet.html
They make a twin outlet version too and have a 993 style system, I don't know whether the rear tray is redundant but expect it is.
TT Exhausts I know nothing about, based in the West Midlands who make a single outlet and 2 versions of the twin exhaust, one like the turbo and the other like the GT3.
http://www.ttexhausts.com/porsche-911-964-exhaust/
You have to be careful to investigate if you will still have heating inside the cabin or not when you change the exhaust, that was another issue that put me off. Also, getting it to fit may not be as straightforward as a standard system.
If you have the money, what you really need this piece of German engineering which will fit and make a difference.
https://www.fvd.net/de-en/BES96400000S/exhaust-system-964-sport-catalytic-bypass-dual-outlet-with-heat.html
This issue discussed in a thread I made about 4 years ago, although I opted for a repair to mine, which is holding up well.
https://www.porscheclubgb.com/forum/tm.aspx?m=932375&high=exhaust+964
If you have the money, what you really need this piece of German engineering which will fit and make a difference.
https://www.fvd.net/de-en/BES96400000S/exhaust-system-964-sport-catalytic-bypass-dual-outlet-with-heat.html
This issue discussed in a thread I made about 4 years ago, although I opted for a repair to mine, which is holding up well.
https://www.porscheclubgb.com/forum/tm.aspx?m=932375&high=exhaust+964
Dekker
New member
daviespaj said:
Peter both the companies I mentioned have fitting service which is what I would go for personally.
If you live in the West Midlands area, give Pro 9 a call, they do complete rebuilds and conversions ala Singer-esque.
If all you need is a flange repair give them a call, https://www.pro-9.co.uk/contact
Another outfit is https://www.zhporsche.co.uk/
run by Paul Clare who are enthusiasts as well as an Indy garage.
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