Dual Exhaust??

adz3448 · 28-03-2007, 07:17 PM

Hey guys,

I currently have on my Ford Falcon Series 1, 2.5inch exhaust, extractors, cold-air induction, ECU flash upgrade and a Crow Cam...

Would it be worth getting a dual exhaust.. What are the pros and cons if any?

The Monty · 28-03-2007, 07:27 PM

It would be a fair wad of cash, and Id say it would be LOUD, and probably drony.

DoreSlamR · 28-03-2007, 08:22 PM

I have a twin system on my ute, was already on it when i bought it. As far as i know you can't buy 'standard' twin systems, so yeah a custom one will be a bit pricey. As for loudness, its fairly quiet, has a nice note at idle and can really hear it when you plant the foot. No droning at all

jonbays · 28-03-2007, 08:25 PM

AU Sedans and wagons have a plastic fuel tank on the passenger side!

Not a good with an exhaust next to it!

walker · 28-03-2007, 08:56 PM

I have a twin 2 1/2" system on my au xr8 it sounds great and dose not drone on the high way at all..... The way to go I say. And yes it's comes out on the 1 side..

JC · 28-03-2007, 11:53 PM

Quote:

Originally Posted by adz3448

Hey guys,

I currently have on my Ford Falcon Series 1, 2.5inch exhaust, extractors, cold-air induction, ECU flash upgrade and a Crow Cam...

Would it be worth getting a dual exhaust.. What are the pros and cons if any?

Is it a 6 or an 8. If it's an 8, then do it (but it must exit on the RHS of the car). If it's a 6, waste of time and money, unless you go twin 1.5" or something (with twin 5" tips, of course!).

AUIII XR8 MAN · 29-03-2007, 05:33 AM

I got a twin 2 1/2 & no problems. Not to loud & quite a nice sound.

**Mechan1k** · 29-03-2007, 08:00 AM

Much more freedom with utes though ... twins dumped at the rear axle would sound tough.

HLC · 29-03-2007, 08:05 AM

on the 6's, why not put a stock xr8 system on? it seems to be working for the BA's. has anyone attempted it on an Au 6?

sure some custom piping would need to be done, like a custom flange/cat etc but who knows.

StealthAu · 29-03-2007, 09:02 AM

why would you want to put a twin system on an i6? save your money and fit a sticker to each side of your car, reading in massive letters ****ER. I think this will have the same effect.

adz3448 · 29-03-2007, 09:22 AM

****edited by Casper****
stockau, that was uncalled for and ignorant.

StealthAu · 29-03-2007, 09:28 AM

Alright, sure, completely uncalled for on my behalf. All I'm saying is it would be a waste of money, there would be no gains over a decent single system on a i6. If this idea is just for looks, get a decent single system and a twin tip. It'll workout alout cheaper and have same effect

Casper · 29-03-2007, 10:03 AM

Quote:

Originally Posted by stockoau

why would you want to put a twin system on an i6? save your money and fit a sticker to each side of your car, reading in massive letters ****ER. I think this will have the same effect.

All XR6 VCT's came factory fitted with a twin exhaust system very much like the XR8's. Before calling people a ****er at least be aware of whats coming from the factory.

Quote:

Originally Posted by stockoau

Alright, sure, completely uncalled for on my behalf. All I'm saying is it would be a waste of money, there would be no gains over a decent single system on a i6. If this idea is just for looks, get a decent single system and a twin tip. It'll workout alout cheaper and have same effect

With a high reving setup there is gains. The Cat Converter is the "bottleneck" on most exhaust systems. The more revs, the bigger the bottle neck. To get around this it is often a case of buying an expensive 3" cat to open the exhaust up. Given that a twin exhaust has 2 cats you could get a similar or better flow out of 2 stock cats than you can get out of 1 high flow cat.

Personally I think a single exhaust setup is a more efficient setup but a twin system does have some merits.

Bucknaked · 29-03-2007, 11:49 AM

Quote:

Originally Posted by Casper

All XR6 VCT's came factory fitted with a twin exhaust system very much like the XR8's. Before calling people a ****er at least be aware of whats coming from the factory.

With a high reving setup there is gains. The Cat Converter is the "bottleneck" on most exhaust systems. The more revs, the bigger the bottle neck. To get around this it is often a case of buying an expensive 3" cat to open the exhaust up. Given that a twin exhaust has 2 cats you could get a similar or better flow out of 2 stock cats than you can get out of 1 high flow cat.

Personally I think a single exhaust setup is a more efficient setup but a twin system does have some merits.

:

Got him, your out, **** of Tony Greg

AU2PWR · 29-03-2007, 11:46 AM

3" System . Thats what i want to get ..

StealthAu · 29-03-2007, 12:59 PM

I already new that ford has factory released i6's with twin exhaust, but that dosn't make it right. Remember ford also released the ea

Casper · 29-03-2007, 01:05 PM

Quote:

Originally Posted by stockoau

I already new that ford has factory released i6's with twin exhaust, but that dosn't make it right. Remember ford also released the ea

:.. good point!

Hibbz · 29-03-2007, 01:11 PM

Quote:

Originally Posted by stockoau

I already new that ford has factory released i6's with twin exhaust, but that dosn't make it right. Remember ford also released the ea

Thats Gold

JC · 29-03-2007, 02:43 PM

Quote:

Originally Posted by stockoau

I already new that ford has factory released i6's with twin exhaust, but that dosn't make it right. Remember ford also released the ea

Actually, they didn't. The pipework might be twin, but one side is blanked off and doesn't actually work.

Casper · 29-03-2007, 02:46 PM

Quote:

Originally Posted by JC

Actually, they didn't. The pipework might be twin, but one side is blanked off and doesn't actually work.

Except on the early AU1's.. like mine. That was pure twin all the way to the back. I've seen a couple that are like that now too, all early AU1.

The pipe wasnt actually blanked off though as you know, it was just fed back into the first pipe with a H fitting.

walker · 29-03-2007, 06:43 PM

Quote:

Originally Posted by stockoau

I already new that ford has factory released i6's with twin exhaust, but that dosn't make it right. Remember ford also released the ea

Good call and so true.

james22 · 29-03-2007, 01:34 PM

rofl....

AU dude · 29-03-2007, 04:24 PM

Was the twin system only on irs models, or did they have them on xr6-8 live axles?
I saw an xr6 for sale the other day, i pulled over and had a look, i check under the rear and saw a full twin 2'' exhaust system(not stock though) running around the diff. It was irs off course.

Casper · 29-03-2007, 04:26 PM

Quote:

Originally Posted by AU dude

Was the twin system only on irs models, or did they have them on xr6-8 live axles?
I saw an xr6 for sale the other day, i pulled over and had a look, i check under the rear and saw a full twin 2'' exhaust system(not stock though) running around the diff. It was irs off course.

Just the XR6 VCT's and XR8's had them from the factory. Both are IRS.

AU dude · 29-03-2007, 04:30 PM

Would an i6 have any benefit from an x-pipe with a twin exhaust system?

edit: Like I know v8 can get more power from them, can this be the same with i6?

Casper · 29-03-2007, 04:38 PM

Quote:

Originally Posted by AU dude

Would an i6 have any benefit from an x-pipe with a twin exhaust system?

edit: Like I know v8 can get more power from them, can this be the same with i6?

Not really. All the exhaust is coming out of a single manifold (and on the stock exhaust on the VCT going through a single cat) so there pressure balance issues of a V8 dont really exist.