Difference between 06/07 STI and GD Spec C catback?
As per title.... I have been reading around and it seems the 06/07 STI catback is the same as all other GD (2.0L) models and is close to 2.25" (see this thread on rexnet: [URL="http://www.rexnet.com.au/forum/index.php?showtopic=123911&hl=2\.25"][/URL][url]http://www.rexnet.com.au/forum/index.php?showtopic=123911&hl=2\.25[/url]). Anyone know for sure if the 06/07 is the same?
Apparently the Spec C catback is 2.5", can anyone confirm/deny this? Anyone know anything in more detail about the internal structure/layout of these two mufflers? |
[QUOTE=Andy!;468855]As per title.... I have been reading around and it seems the 06/07 STI catback is the same as all other GD (2.0L) models and is close to 2.25" (see this thread on rexnet: [URL="http://www.rexnet.com.au/forum/index.php?showtopic=123911&hl=2\.25"][/URL][url]http://www.rexnet.com.au/forum/index.php?showtopic=123911&hl=2\.25[/url]). Anyone know for sure if the 06/07 is the same?
Apparently the Spec C catback is 2.5", can anyone confirm/deny this? Anyone know anything in more detail about the internal structure/layout of these two mufflers?[/QUOTE] Pretty sure the 06/07 ADM STI is 2.5" and I would be surprised if the Spec C is any different. |
the Spec C dump pipe is certainly different, but I was under the impression the catback would be the same
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2.5L gets bigger exhaust?
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If your talking about the STi cannon style exhausts then Spec C and S204 muffler are basically the same except materials and I can confirm the flange and piping diameter is 2.5.
However when Ramon cut open a Genome exhaust it had internal down sizing so the only real way to find out would be cut it open. :eek: Saying that the Spec C and S204/RA-R mufflers are not exactly restrictive on making power and certainly flow better than a STD STi exhaust. |
The 06/07 has a 2.5 inch mid pipe and a 2.25 inch diff back. (i bought naulis old diff back). Some Sti mufflers had a 2.5 inch diff back section, i have the 2.5 inch version on my xt, but i'm not sure what model it's off. I was thinking maybe a JDM Sti.
I think the spec c has a stainless version of the titanium s204 cannon muffler. Here's one for sale. [url]http://www.rexnet.com.au/forum/index.php?showtopic=120752[/url] |
I know thats why im asking the questions :)
What about noise I have heard genome catback, from about 2km away :) they are not exactly quiet, are these very similar to that or more like stock? By the look of it, the spec C appears to be like a cannon ie. straight through design, correct or are they baffled design like the normal STI |
I've had a Genome and the are quiet as a stock system when cruising
but mean and loud on WOT. Why such a concern if it's baffled or straight through, the fact is they flow and sound better than a stock STi exhaust? If you want a super dooper free flowing muffler then go after market or get a custom one made by Norm Butler. |
or a varex.
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I was more just interested in the internal structure of the muffler.
Im basically after a super quiet setup but want as little restriction as possible, I know anything quiet will most likely be more restrictive (especially top end) but I can deal with small losses to keep the car quiet. and I dont mean quiet as in compared to common aftermarket drain pipe exhuasts, I mean quiet as in factory exhuast quiet. |
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