Xr6 extractors and High flow cat

xr6_boss · 30-11-2009, 12:34 PM

Hi guys, i got a 2.5 inch redback exhaust system put on my Au xr6 ute and was very happy with the note it produced. am now considering some extractors and even a high flow cat. I rang a muffler place and they quoted me 650 for competition pacemakers or 500 for tuned pacemakers, what do you think would be the better option. also said for 800 he could also fit a high flow cat. what do you believe the best setup for my ute would be ?
thanks

The Monty · 30-11-2009, 01:04 PM

The tuned ones are good for down low, Comps are for mid to high range, but you dont loose any down low by any means.
If your happy with the note, Id probably try and get a drive in someones car with extractors, it might put you off buying them.
$800 including cat is a good price if thats the 4480's (comp) and a high flow cat installed.

xr6_boss · 30-11-2009, 01:08 PM

thanks for reply, What do you mean put me off buying the extractors . what type of difference is there in sound ? ?

The Monty · 30-11-2009, 01:26 PM

I thinks its more of a raspy and nasally kind of sound, not bad by any means, but very different.

xr6_boss · 30-11-2009, 01:33 PM

oh ok then.. i would like the sound to become a bit deeper, and i dont mindd if it is a bit rougher..

The Monty · 30-11-2009, 02:02 PM

I wouldnt say it would get deeper, deffinately louder, and more raspy, like a saloon car.

bodes-sh · 30-11-2009, 02:04 PM

mine has what is apparently called "collector noise" which comes from where the extractors merge right in front of the driver's footwell. it's hard to explain, at first i thought it had a leak because that's sort of what it sounds like, but apparently it is just the way pacemakers sound. i think my note changed, i can't remember a great deal cause the catback wasn't on long before i put pacemakers and a highflow cat on...

frd906 · 30-11-2009, 02:43 PM

mine, as most of the guys on here knows, has the sound off every cylinder firing, 1, i have very very small back pressure,

BIGJB · 30-11-2009, 03:21 PM

Quote:

Originally Posted by The Monty

I wouldnt say it would get deeper, deffinately louder, and more raspy, like a saloon car.

Like a saloon car is the best way i could describe it.
$800 is a great price if that is compys and high flow.

mik · 30-11-2009, 05:20 PM

different extractors seem to have a different tone and pulse to the exhaust note, i have lukey extractors on mine , they seem to give a very pronounced throb at low engine speed, perhaps have a listen to some other cars and see what you like, that seems like a reasonable fitted price.

JC · 30-11-2009, 05:51 PM

If you want note, change the muffler. Extractors just make it easier for the exhasut gasses to get out, and while they marginally change the note, a deeper note can only really be had by reducing the muffler size (or removing altogether - not that I recommend doing that).

Stattic · 30-11-2009, 06:30 PM

Quote:

Originally Posted by bodes-sh

mine has what is apparently called "collector noise" which comes from where the extractors merge right in front of the driver's footwell. it's hard to explain, at first i thought it had a leak because that's sort of what it sounds like, but apparently it is just the way pacemakers sound. i think my note changed, i can't remember a great deal cause the catback wasn't on long before i put pacemakers and a highflow cat on...

wow i thought i was the only one... it annoys the crap outta me!

blueoval · 01-12-2009, 10:56 AM

Quote:

Originally Posted by bodes-sh

mine has what is apparently called "collector noise" which comes from where the extractors merge right in front of the driver's footwell. it's hard to explain, at first i thought it had a leak because that's sort of what it sounds like, but apparently it is just the way pacemakers sound. i think my note changed, i can't remember a great deal cause the catback wasn't on long before i put pacemakers and a highflow cat on...

I personally like this with headers. Especially if you have a cam installed, I think it sounds tough.

Back on topic:
I had 4480s supplied and fitted for $550 and the hiflow metal cat for $250 fitted. So $800 sounds about right for comp headers and hiflow cat. But make sure its a metal core not ceramic core.

Jack91 · 01-12-2009, 08:13 PM

Quote:

Originally Posted by blueoval

I personally like this with headers. Especially if you have a cam installed, I think it sounds tough.

Back on topic:
I had 4480s supplied and fitted for $550 and the hiflow metal cat for $250 fitted. So $800 sounds about right for comp headers and hiflow cat. But make sure its a metal core not ceramic core.

Thats a bloody good price considering I was being quoted that locally for supply only and the best I could get from a redback and pacemaker agent was $380 for 4490's with bolts, gasket and I got it overnighted to them because I wanted them asap. As for noise, it's good sometimes, the way Id describe it is, think of your note with the redback only, then just make that louder and a bit raspy.

Jack91 · 01-12-2009, 08:14 PM

Quote:

Originally Posted by blueoval

I personally like this with headers. Especially if you have a cam installed, I think it sounds tough.

Back on topic:
I had 4480s supplied and fitted for $550 and the hiflow metal cat for $250 fitted. So $800 sounds about right for comp headers and hiflow cat. But make sure its a metal core not ceramic core.

Thats a bloody good price considering I was being quoted that locally for supply only and the best I could get from a redback and pacemaker agent was $380 for 4490's with bolts, gasket and I got it overnighted to them because I wanted them asap supplied only and fitted myself. As for noise, it's good sometimes, the way Id describe it is, think of your note with the redback only, then just make that louder and a bit raspy.

phillyc · 01-12-2009, 11:43 PM

Quote:

Originally Posted by blueoval

I personally like this with headers. Especially if you have a cam installed, I think it sounds tough.

Back on topic:
I had 4480s supplied and fitted for $550 and the hiflow metal cat for $250 fitted. So $800 sounds about right for comp headers and hiflow cat. But make sure its a metal core not ceramic core.

Yeah $800 for the 4480 and a Hi Flow Metal Cat is good going! Make sure it's a metal cat.

The 4480 suggested retail is nearly $700. But, can usually be found for $600-$650 fitted.

Yes, i rate the 4480 headers, i now have them on both AU's.

The sound, is something i really appreciate. It sounds very 'compressiony', like hearing each cylinder fire off. Yep, sounds tuff!

frd906 · 02-12-2009, 09:41 AM

thats the same noise, every cylinder firing i have on my motovator extractors, and every body bagged it

xr6_boss · 02-12-2009, 12:40 PM

also while im here misewell ask if it is worth getting the high flow cats ? is it worth the extra money , and what type of improvements can i expect ?

blueoval · 02-12-2009, 01:32 PM

That depends on how much power your after. If you plan on going all out later on with cams etc, then probably yes. If your looking at improving a bit more flow for everyday driving, I wouldn't bother unless you have cash burning a hole in your pocket.

Improvements wise, expect about a 2-5rwkw increase at high rpm.

Price wise, expect to pay about $250 each

xr6_boss · 02-12-2009, 01:38 PM

Yeah im thinking ill just get the pacemaker comp headers that should give me a fair bit of improvement and just leave the stock cat on there as i dont think ill be doing to much with cams, consdiering i got the vct engine..

blueoval · 02-12-2009, 01:48 PM

yeah I think you'll notice a fair improvement with that setup