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GT/G40 exhausts..
Posted: Sat Aug 23, 2003 9:19 pm
by dub envy
Are they the same?
Posted: Sat Aug 23, 2003 10:08 pm
by KarlM
not 100% sure but i would say NO because the manifolds are different
Posted: Sun Aug 24, 2003 11:43 am
by polo2k
can we get an engine code for both and ill check
Posted: Sun Aug 24, 2003 12:54 pm
by hardhitter
They are different. The G40 manifold has a bracket for the charger on it, it also has a slightly bigger bore too. The G40 downpipe has a slightly larger bore as does the exhaust system.
A few people have put G40 exhaust manifolds & systems on a GT before, should see some gains. The only problem is they aint cheap to buy new.
Engine codes:
GT- 3F
G40- PY
Posted: Sun Aug 24, 2003 1:40 pm
by polo2k
ok just looking at the down pipe the part is interchangeable but the g40 uses a long life version
Posted: Sun Aug 24, 2003 3:21 pm
by dub envy
so basically, i need an exhaust.
i plan in the near future to start looking for a g40 engine.
when i get said engine my new de-cat downpipe will be useless..
i dont know what to do.
sod it. i'll just buy the stainless zorst, and then i'll have to sell it when i get the g40. i'm sure that a complete GT engine, de-cat, and stainless exhaust will be pretty easy to sell.....
Posted: Sun Aug 24, 2003 10:04 pm
by hardhitter
What exhaust are you thinking of getting ? If you get a custom, ask them to use 2" or 2 1/4" tubing for the system, which they will probably do anyway. That would be fine on a G too.
The systems can be swapped between the two, G40 system will fit GT and visa versa. You wouldnt need to sell it.
Posted: Tue Aug 26, 2003 12:32 am
by dub envy
how would i go about fitting the larger bore g40 exhaust to the smaller gt downpipe?? shims?
Posted: Fri Aug 29, 2003 3:49 am
by poloace
G40 back box +Mid section are the same as a GT (Unless the GT I broke fo rmy MK2 conversion had a G40 exhaust) However manifolds and downpipes with cat are different the 2 down pipe bits are a lot bigger bore. My centre section broke on my G and I was able to use the one I had in my garage from the GT as a straight swap. The G40 was quite restricted by VAG and a noticable power gain is acheived with a performance exhaust.
Posted: Sat Aug 30, 2003 1:11 pm
by hardhitter
dub envy wrote:how would i go about fitting the larger bore g40 exhaust to the smaller gt downpipe?? shims?
The downpipe to centre section join is pretty much the same for the GT and G40 in diameter. I think the difference in bore is at the manifold end where its two pipes.
Posted: Sat Aug 30, 2003 1:45 pm
by dub envy
ok. so gt/g40 systems are the same.
I can order a GT one with piece of mind
Posted: Sun Aug 31, 2003 6:36 pm
by hardhitter
What kind of system are you getting ?
Posted: Sun Aug 31, 2003 6:45 pm
by dub envy
I want to order one from that company at the Polo Show.. But I can't find their flyer, and can't remember their web address... I have searched on the net, but cant seem to find them... I think it was something like
www.performanceexhausts.com ????? not too sure on the make now either, but am sure it was Motec...
Oh well... I want a full stainless system, with no middle silencer and a boxer (letterbox) style tip..
I think that should look and sound ok..
Posted: Sun Aug 31, 2003 7:39 pm
by hardhitter
Motex, do you mean.
http://www.sportexhausts.com/index.html
Should be good, they looked good quality. What will you do about hanging brakets, make your own ?
Posted: Sun Aug 31, 2003 10:56 pm
by polo2k
thats the one