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Different exhausts for manual/Tiptronic cars?

BillTheButcher

Well-known member
Joined
19 Feb 2013
Messages
578
Hello.

The one thing I want to change on my newly-acquired 996 Turbo Tiptronic is the soundtrack. I'd like it to sound as much like the 996 GT2 as possible. Was the OEM Porsche GT2 system made by Akrapovic?

I've been looking at (and listening to) a lot of different manufacturers' aftermarket solutions. I've noticed that quite a few of them have different versions of their exhausts for Manual and Tiptronic. Can anyone tell me why this is the case? I didn't realise that exhaust choice might be determined by gearbox type. :?:

The ones I like the sound of at the moment are:
  • Fabspeed Maxflo v1
    Fabspeed muffler bypass with sport cats
    Europipe Stage 1 Quiet (Stage 2 Loud would be better but it says "not recommended on Tiptronic")


Cheers. :thumb:
 
My 996 turbo tip came with a sport exhaust of an unknown make which drives me mad. I have purchased a second hand milltek which will hopefully be better. Should get round to fitting this in a couple of weeks.

The main problem with the current one is the constant drone at 70 - 80 mph. It really is horrible. Around town and when accelerating it is fine. I would imagine in a manual it would be better because you could slip it in 6th gear. The drone is only in a certain point of the rev range which happens to be long journey cruising speed. Also when driving around town a normal have to manually go up a gear to get out of the droning part of the range. I think it is between 2 - 3K rpm.

So I think the difference in the gear boxes is probably more to do with the rev ranges.

Hope this helps.

Tom
 
Thanks Tom. :)

So you think when they say a certain exhaust isn't recommended for Tiptronics it's because of drone. I hadn't thought of that.

I couldn't see any reason why a gearbox would affect which exhaust you could put on.
 
Based on mine, yes! My exhaust sounds nice when accelerating but at cruising speed it seems to sit in a very noisy part of the range. I'm hoping the milltek will sound better. Will let you know the results when I finally get round to fitting it. Been in my garage for about 3 weeks already.
 
I have a PES system?

It's very good and loud. Flick the button on the dash and it all goes very quiet.
 
Unfortunately PSE was not available on the turbo. Someone might correct me on this but I have never seen it.
However I did read on a US forum a while back of some guy who ground the cat off and drilled a hole inside the exhaust linking the in and out together. He then refitted the cat. Apparently sounded quite good! I guess this is only the same principle as the PSE.

I have a spare stock exhaust if I had more time I would try this. You start with a small hole and open it up to suit taste.
 
I'm not drilling holes in my exhaust or anything like that.

Ken at Nine Excellence reckons there shouldn't be that much difference in sound between a stock 996T and a stock GT2. I drove them back-to-back and they sounded very different to me, particularly off-boost. Someone has suggested that this might be because there's less sound-deadening in the GT2 rather than the exhaust system being that different. :?:
 
Akrapovic do design exhaust systems for Porsches but never have they been standard equipment save for the 997 GT2 RS.

~ Maxie
 
Maxie said:
Akrapovic do design exhaust systems for Porsches but never have they been standard equipment save for the 997 GT2 RS.

~ Maxie
Thanks Maxie. :)

So the 996 GT2 exhaust system is an in-house Porsche design?
 
BillTheButcher said:
Maxie said:
Akrapovic do design exhaust systems for Porsches but never have they been standard equipment save for the 997 GT2 RS.

~ Maxie
Thanks Maxie. :)

So the 996 GT2 exhaust system is an in-house Porsche design?

All OEM exhaust systems are in-house Porsche designs, but made to those designs by various external suppliers.
Akropovic's first exhaust for factory fitment by Porsche was the titanium system used on the 997 GT2 (not GT2 RS).
Akropovic has also developed aftermarket titanium exhaust systems for replacement use on other Porsche models, so you could check their web site to see if your car is among them.
 
Red993C4 said:
Akropovic has also developed aftermarket titanium exhaust systems for replacement use on other Porsche models, so you could check their web site to see if your car is among them.
They do indeed: the Evolution Titanium system (which includes new manifolds).

£6,185. :eek:
 
BillTheButcher said:
Red993C4 said:
Akropovic has also developed aftermarket titanium exhaust systems for replacement use on other Porsche models, so you could check their web site to see if your car is among them.
They do indeed: the Evolution Titanium system (which includes new manifolds).

£6,185. :eek:

Quality has its price. :D
 
This is a Fabspeed Maxflo v3 with their 200 cell cats.

From 0:00-0:25 and from 1:56-2:44 is exactly how I remember the GT2 sounding. Loads of boost noise but also lots of lovely exhaust. :bandit:

 

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