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 Post subject: EF exhaust
Posted: Sat Oct 17, 2009 7:30 pm 
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Hey guys,

Just bought a V8 ef fairmont with the 302 windsor, and I was wondering what sort of exhaust I would look at putting on the car for peak perfomance, I have been looking at pacemaker extractors and then a 3' follow through kit. I was wondering what peices people are using and what performance they are getting. the exhaust shop down here in canberra have said that with the set up they have said would give me between 20-30 rwkw extra. is this reasonable.
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 Post subject: Re: EF exhaust
Posted: Sat Oct 17, 2009 7:54 pm 
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20 - 30 rwkw? That's a big call.
But in general, Pacemaker do have the PH4000 headers which are a great improvement over stock headers. Add a 2½" ( or 3" if you think bigger is better ) mandrel bent exhaust with whatever choice of muffler / resonator doesn't drone and you'll have a much nicer sound with some better seat-of-the-pants punch.

 

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 Post subject: Re: EF exhaust
Posted: Sat Oct 17, 2009 8:07 pm 
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Good set of headers go 3" mandrel pipe with good resonator and your car will sound sweet as.

 

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 Post subject: Re: EF exhaust
Posted: Sat Oct 17, 2009 9:02 pm 
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what sort of power gain have you been getting from this??
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 Post subject: Re: EF exhaust
Posted: Sat Oct 17, 2009 9:13 pm 
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The system was on the car when I bought itand never had it on dyno so figures I dont know. Altho it does feel a little better under foot than a standard car of same type. To really get these things going you have look at making it breath in as well as out.

 

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 Post subject: Re: EF exhaust
Posted: Sat Oct 17, 2009 9:25 pm 
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see I was looking at an explorer intake, and a 65mm tb, not sure if I should change out the standard air filter?
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 Post subject: Re: EF exhaust
Posted: Sat Oct 17, 2009 9:37 pm 
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Bigger air intake snorkel is the cheepest start and you will feel the difference instantly.

 

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 Post subject: Re: EF exhaust
Posted: Sat Oct 17, 2009 10:01 pm 
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Im guessing this is the pipe from the air filter, I did notice that is quite small when letting the air in. would you swap out teh air filter box with a pod filter, or would you swap out the pipe itself?
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 Post subject: Re: EF exhaust
Posted: Sat Oct 17, 2009 10:03 pm 
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Vic wrote:
20 - 30 rwkw? That's a big call


I was under the assumption that an exhaust modification or install will result in a 5% to 15% increase in power which is f**k all really (depending of starting power output).

 

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 Post subject: Re: EF exhaust
Posted: Sat Oct 17, 2009 10:10 pm 
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Unless your going with full cold air intake change the intakke pipe to the filter, taking out the air box and using a pod filter in an ef means your going to draw hotter air from the engine as the front between the head lights is full plate metal and no air flow.

 

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 Post subject: Re: EF exhaust
Posted: Sat Oct 17, 2009 10:15 pm 
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Froudey wrote:
Vic wrote:
20 - 30 rwkw? That's a big call


I was under the assumption that an exhaust modification or install will result in a 5% to 15% increase in power which is f**k all really (depending of starting power output).

Perhaps that fellow meant 20hp instead of 20kw, which is a bit more likely for just an exhaust system replacement.

 

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 Post subject: Re: EF exhaust
Posted: Mon Oct 19, 2009 3:19 pm 
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i got a single 2.5inch on my XR8 it isnt too bad, but i dont like the note it puts out so i am getting a twin 2 1/4 system put on next
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 Post subject: Re: EF exhaust
Posted: Tue Oct 20, 2009 2:43 pm 
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i have twin 2.25 with high flow cats and EL GT extractors and my car sounds horn :evil:
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