993TT cat bypass - experiences / opinions?

[verysideways]

I hear that even if you put muffler bypass pipes on the 993tt they won't "feel" any different, because the cats are the major restriction.

I know you can get 100 cell cats, and cat bypass pipes.

Who has either of these, and what are your experiences? I fancy easing the restriction a bit so the turbos spool up a bit earlier. I hear this reduces temperatures too...

VS

maybe i should get the cat bypass and the muffler bypass, then my neighbours would really love me

[MOD500]

Prob best to post in the 993TT forum on Rennlist, as lots of the A-merican chaps on there have various exhaust combinations.

[993rsr]

Look at the fabspeed site www.fabspeed.com I have some muffler bypass pipes on my GT2, superb quality and lovely sound, plus with the dollar rate very cheap.

[johnny senna]

993rsr said:

Look at the fabspeed site www.fabspeed.com I have some muffler bypass pipes on my GT2, superb quality and lovely sound, plus with the dollar rate very cheap.

You gotta do this surely Pete?

[verysideways]

I actually have their muffler bypass demo movie on my desktop at work

www.fabspeed.com/993TT%20Muffler%20Bypass%20pipes.wmv

Sound pretty good to me.

VS

JC, i'll look forward to hearing them sometime.
Johnny, oh yes...
Martyn, good idea, just done it

[nel]

Just watched that video - not bad! Have always felt that the noise of my 993tt was a bit too anodyne, but didn't want too much exhaust drone when cruising on the motorway. This might just be the solution...thanks chaps.

[verysideways]

Found out that FVD also do muffler bypass pipes, and they are right here in Europe, plus they have two distributors in the UK, the one down south is G-Force.
FVD list the pipes at 295 euro + tax and shipping.

VS

Sites here:
(www.fvd.de)
(www.g-force-motorsport.co.uk)

[verysideways]

Have ordered the FVD pipes.
Considering they're basically a 90 degree bend in a piece of 2.5" pipe, with a small flare at one end and quite a large flare at the other end, i refuse to pay more than i have to!
FVD works out at £240 delivered and taxed, whereas Fabspeed ones work out at over £300 even if customs don't "catch" it...

Will let you know how they sound once i've put them on.

VS

edited for carp spelling

>> Edited by verysideways on Wednesday 27th April 14:29

[don777]

VS,

How did you get on with the bypass pipes? are they too loud or just right?
I'm thinking of going down the same route.
Don

[verysideways]

Don,

go back to your original post:
www.pistonheads.com/gassing/topic.asp?t=183599&f=48&h=0



VS