DRPM

I too am looking to at various options...early days so far.
Technically speaking I'm listening to some advantages the GMG and RSS guys are preaching. There seems to be a difference with the balance chamber that appears with RSS and GMG but is non existant with the SW unit.
Not sure how all this may effect HP/Torque.
Would be nice to have come real data/experience to compare.

Larry Cable

I have had both GMG (on my .1) and SW (on my .2) I loved the sound of the GMG on the .1 as the integral "tips" were slightly "trumpeted" and thus gave a very rich sound.

However I prefer the SW bypass on my .2 for a couple of reasons; I think it sounds better than the GMG (but that is subjective), I like to be able to use "OEM" style tips (I have the SW titanium tips), and last but not least I like to give my business to a company such as Sharkwerks with their incomparable and unmatched customer service bar none.

delanobe

I'm a bit surprised nobody is mentioning the FVD centre bypass made by M&M?

amdevo

i love how sw keeps geting repped for their service,

BBMGT3

It does look nice, plus its a higher gauge steel and its even a little bit cheaper.

Of course, that would involve buying from FVD. Maybe I'm unlucky, but I will never touch them again.

tono

Scheduled to install a RSS X-pipe in a few weeks on my 997.1 GT3. Will post a review and video.

sharkster

Thanks for the support guys and just some food (or chum) for thought. The inside of your stock center muffler doesn't have a balance chamber and therefore if you keep the flow as close as possible to the stock unit (aka use small/similar size diameter tubing) then you won't affect the back pressure significantly. There is only a connection at the outlet portion of the smaller diameter (when the valves are closed) pipes which is not the mode you use for making peak hp anyways. I suppose if you were to induce and slow down velocity and cause turbulence you could try and use a "balance" pipe to help with back-pressure but if you design something that performs like the stock unit then you don't need to The ECU calls for a certain amount of back pressure and so if you change it significantly enough you can obviously lose low end tq. The trick is to stay within the correct heat ranges for the 02 sensors and of course don't get beyond the called for limits etc...

And as I always tell folks if you're doing the exhaust for power then an exhaust on the 3 engine isn't really what you want to be doing. Yes we've seen a good few dynos our ours in AZ, Canada, the UK and other areas of the world before here showing a few ponies more in sport mode with our exhaust but if you're doing it for power gains don't expect too much. Now as far as sound and/or weight reduction then that's hard to argue...

Izzone

Alex

Quick question....why connection pipes on track exhaust

sharkster

Hey mate that's an easy one... There's a significant reduction in back pressure with the track exhaust so to induce some we have a balance pipe. It also helps reduce the interior noise. A little

TrackDays247.com

Took my X pipe out of the box and shot a few pictures.
The workmanship is outstanding:

sideways_swe1

I LOVE my Cargraphic exhaust!

Larry Cable

^^^ itsa monster, which cargraphics exhaust do you have, and what additional work did RS Tuning do?

sideways_swe1

Cargraphic full exhaust. With bypass and cargraphic side mufflers and cats. Not quite as loud with only cargraphic bypass but i would recommend it. Build quality is amazing! Rs tuning has done, exhaust, flywheel, clutch, racecam, ecu tune and done chassi mods.

Larry Cable

RESPECT