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New EL2 XR8 Exhaust. Keep The ELGT Extractors? 

 

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 Post subject: New EL2 XR8 Exhaust. Keep The ELGT Extractors?
Posted: Wed Mar 22, 2006 8:06 pm 
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Just put my car in today to get the brakes done and while it was on the hoist I noticed that my exhaust is starting to rust out. So now I have to fork out more money for a bloody exhaust.

Just wondering are the EL GT extractors and the cats that come standard with the car worth keeping or should I go some pacies and high flow cats?

I don't mind having to spend the extra bit on getting pacies etc if I will actually notice a difference. But if not I will leave the extractors and cats alone and just replace the exhaust from where the two sides meet back as this is aftermarket and is where it is rusting.

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Posted: Wed Mar 22, 2006 8:32 pm 
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just cut the exhaust off from where the rust is! ;) totally up to you mate but if it was me and the cat was fine i would just replace cat back! :D
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Posted: Wed Mar 22, 2006 10:31 pm 
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I reckon keep the ELGT extractors. I mean they were good enough for 200kw on the GT. You would probably get a little more power out of Pacemakers but might not justify $$ per Kw gained.

Just work on the cat back system I reckon.

 

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Posted: Thu Mar 23, 2006 1:50 pm 
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Throw them. Good for top end, aftermarket 4>2>1s will give you more low down, middle range and be enough for higher end. It will be a straighter curve on the dyno..

Good enough for the GT, but give them aftermarket extractors and they'll have more than 200fwkw for sure.

 

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Posted: Thu Mar 23, 2006 8:18 pm 
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I guess i will just look into prices for a full system with pacies and go from there. I can't wait till I can actually buy / upgrade something when I want instead of having to do it because it is broken.

 

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Posted: Sun Apr 23, 2006 10:58 pm 
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Okay this weekend I went for a cruise and when I got back my exhaust started sounding like it now has an even bigger hole in it. I have pretty well decided to go straight for a new system but am still unsure about the original GT style extractors.

I am looking at the pacemaker PH4000s which seems to be the most common extractor used on here. But I want to know for sure that these are going to be better then the original ones that I have now. The pacies are 41mm Primaries, 48mm Secondaries and 57mm Outlets. Does anyone know if this is bigger then the EL GT/XR8 Series 2? And also I'm thinking of going twin 2 1/2 inch all the way would this be cool or would it be better having twin 2 1/4?

 

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Posted: Sun Apr 23, 2006 11:00 pm 
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definitely get the pacies....

 

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Posted: Sun Apr 23, 2006 11:02 pm 
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Firstly, the EL GT/XR extractors are OK for mild setups but they are no where near up to pacemaker standard IMO.

Twin 2.5" system is an overkill even for fairly modified engines. A single 2.5" or twin 2.25" would be a better option IMO.
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Posted: Sun Apr 23, 2006 11:23 pm 
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POSITIVE gains in aftermarket.. You can get a little bit of $ from selling those GT headers to someone who has the stock crap.

 

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Posted: Sun Apr 23, 2006 11:27 pm 
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Cool thanks guys chucking the GTs then. At the moment it looks like my exhaust is standard twin press bent 2 1/4 up until just after the trans where it joins into a 3 inch aftermarket mandrel bent single. Do ya think I should just get all this redone exactly the same but all mandrel bent, or do you think that where it joins into a 3 inch it would be like a bottle neck and would be better just going twins the whole way.

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Posted: Sun Apr 23, 2006 11:32 pm 
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The single 3" will not a restriction at all, the press bent 2.25" sections may be though.
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Posted: Sun Apr 23, 2006 11:38 pm 
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Well it's decided then. PH4000 pacies, twin 2 1/4 inch into a 3 inch after the trans all mandrel bent stainless. Thanks for your help guys it makes it so much easier when I can just come on here and ask questions instead of relying on dodgy rural exhaust shops that have no prior experience whatsoever. Cheers!

 

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Posted: Sun Apr 23, 2006 11:38 pm 
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hell u may get a carton for the GTs if someone here is strapped for cash... hell if u were in perth a mate of mine with a wife, house, kid and a stock nc v8 that could do with em! actually if u go that route lemme know, coz if u willin to offload em cheap, il investigate freight n see if i can get em for him.

but yeh back on topic, i gots an stockish el2 xr, n i very much love my difilipo 4-1s.. nutty exhaust note from em, so if that extra 3nm at 2000rpm(or wotever diff it makes) doesnt matter all that much to you compared to a crisper note, then get the pace maker comps, ie 4into1s, or the diffies..

 

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Posted: Sun Apr 23, 2006 11:43 pm 
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-clampy- wrote:
hell u may get a carton for the GTs if someone here is strapped for cash... hell if u were in perth a mate of mine with a wife, house, kid and a stock nc v8 that could do with em! actually if u go that route lemme know, coz if u willin to offload em cheap, il investigate freight n see if i can get em for him.

but yeh back on topic, i gots an stockish el2 xr, n i very much love my difilipo 4-1s.. nutty exhaust note from em, so if that extra 3nm at 2000rpm(or wotever diff it makes) doesnt matter all that much to you compared to a crisper note, then get the pace maker comps, ie 4into1s, or the diffies..


Thats cool dude I will post them in the for sale section if I end up not wanting to keep them in the shed as original parts. I was wondering about 4into1s but after doing a search on here a lot of people say that you lose too much bottom end torque. Do pacemaker actually make 4into1s for the EB-AU1 or is it only for the AU2 and 3 with the GT40 heads?

 

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Posted: Sun Apr 23, 2006 11:43 pm 
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ah simultaeous post.. yeh good man ^ that should be noice!

 

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