View Full Version : Do new S/S exhausts get louder with time or quieter?
RED R8
15-07-2007, 09:58 PM
Hi all'
I just had a new custom stainless cat back made up it is a twin 3" from cats to diff with two x 4" round by 12" long resinators then twin 2.5" over the diff into a stainless resinator.The system I had made as my twin 3" Xforce was too loud and i wanted something abit quiter and tighter but the problem is the new system is still too loud :vpo:,do new systems like this tend to carbon up a bit and quieten down or do the tend to get louder? the exhaust shop who did the job have orderd me a larger rear resi as they give a sound gaurantee but its only "just" too loud as it is and if it quietens with time then I will keep it as is ,If they get louder with time I will have the bigger resi fitted.
sorry to be a pain in the ar$e but I want to get the exhaust note spot on.
Thanks Darryn
why are you going backwards daz and fitting 2.5" rear
BigJim
15-07-2007, 10:08 PM
From my experience i always reckon my exhausts always seem to get louder after a few 1000 kays on them.
RED R8
15-07-2007, 10:17 PM
why are you going backwards daz and fitting 2.5" rear
They said it gives them more controll in being able to fine tune the sound and that as the gas's cool the 2.5" rear is capable enoungh ????
I must say the car seems to have slightly better low to mid pull ,I dont know if it just feels more responsive because its slightly quieter.Still loved the Xforce though but on my set up it was just too loud and I didn't want to butcher it and make it worth nothing.
From my experience i always reckon my exhausts always seem to get louder after a few 1000 kays on them.
Thats what I can remmember from the Xforce but wasn't sure if stainless was any different.
lampshade
15-07-2007, 10:19 PM
I found my Milltek ss exhaust got deeper in sound after a few K's were put on it, do other ppl think it's too loud?? perhaps you just have sensitive hearing to the sound your exhaust is resonating at.
RED R8
15-07-2007, 10:24 PM
I found my Milltek ss exhaust got deeper in sound after a few K's were put on it, do other ppl think it's too loud?? perhaps you just have sensitive hearing to the sound your exhaust is resonating at.
No it is very loud ,sounds sweet but draws alot of attention.
Theres is only 2 main ways to make an exhaust quieter , restriction or volume
jaykay
16-07-2007, 12:10 AM
Theres is only 2 main ways to make an exhaust quieter , restriction or volume
By volume do you mean bigger diameter pipes Terry ?
RED R8
16-07-2007, 12:10 AM
Theres is only 2 main ways to make an exhaust quieter , restriction or volume
Restriction would be bigger resi's ?? how do you do it with volume ??
michaels1v8
16-07-2007, 12:41 AM
Restriction would be bigger resi's ?? how do you do it with volume ??
would volume be the area of the pipe? Ie: twin 3" compared to twin 2''?
RED R8
16-07-2007, 12:52 AM
would volume be the area of the pipe? Ie: twin 3" compared to twin 2''?
Not sure I don't think so as i went from Xforce twin 2.5 which was too quite to Xforce twin 3" which was too loud so the extra volume seemed to dramaticly increase sound.
Darkrayne
16-07-2007, 12:56 AM
Still recommend the twin 2.5 cat back in mild steel from di fillipo.. i picked up alot of go in low to midrange after i had it fitted.. though it does produce the great note.. without being too harsh, and thats with the same headers and 3' cats youre running..
RED R8
16-07-2007, 01:18 AM
Still recommend the twin 2.5 cat back in mild steel from di fillipo.. i picked up alot of go in low to midrange after i had it fitted.. though it does produce the great note.. without being too harsh, and thats with the same headers and 3' cats youre running..
I think the system I have now with combination 3" and 2.5" should be spot on when the bigger resi go's on.Yours sounds great on your vid mate.
By volume do you mean bigger diameter pipes Terry ?
you can still use the same diameter pipe but you need a larger muffler which is why i use a 7" x 18 " rear muffler and 10" x 5" centre mufflers on twin 3" systems ,also you need a dense material inside the muffler to absorb the sound waves , the other way is to use mufflers with several expansion chambers to absorb sound waves but these are a little more restrictive
RED R8
16-07-2007, 01:25 AM
Just looking at my reciept Terry and it says flat 14" rear muffler and when I mention the day after that it is still a little loud they said a round rear muffler will be replacing the flat top and bottom shaped muffler and he said it will add 1.5" top and bottom of extra packing.
Just looking at my reciept Terry and it says flat 14" rear muffler and when I mention the day after that it is still a little loud they said a round rear muffler will be replacing the flat top and bottom shaped muffler and he said it will add 1.5" top and bottom of extra packing.
a round muffler will give you more surfice area than a flat muffler but needs to be at least 18 " long
RED R8
16-07-2007, 01:36 AM
a round muffler will give you more surfice area than a flat muffler but needs to be at least 18 " long
I will quiz em tommorow Terry.
VYSSion
16-07-2007, 08:50 AM
Sounds like you spoke to Aaron at APC... he tried to sell me the same system. I told ya to go the DF 3" twin :P.
RED R8
16-07-2007, 10:56 AM
Sounds like you spoke to Aaron at APC... he tried to sell me the same system. I told ya to go the DF 3" twin :P.
Why ? I got a custom system with the option to take it back as many times as I like until the sound is to my liking with a 10 year gaurantee for $650 less than the Difillipo...:):):) cant go wrong mate, so far the sound and quality are great but just want it a tad quieter but it looks like the stainless will get louder with time :confused:.
Why ? I got a custom system with the option to take it back as many times as I like until the sound is to my liking with a 10 year gaurantee for $650 less than the Difillipo...:):):) cant go wrong mate, so far the sound and quality are great but just want it a tad quieter but it looks like the stainless will get louder with time :confused:.
After they have delt with you daz i dont think they will ever offer that people can bring it back as many times as they like to get the sound right again. You forgot to tell them your an exhaust sound conisire.:)
RED R8
16-07-2007, 12:32 PM
After they have delt with you daz i dont think they will ever offer that people can bring it back as many times as they like to get the sound right again. You forgot to tell them your an exhaust sound conisire.:)
Hehe..thats why I went to them so I didn't hassle my normal exhaust man..I'm not that bad...am I ?
So far Shane 2 from 2 wont do what you want to do :vpo:
VYSSion
16-07-2007, 12:43 PM
Why ? I got a custom system with the option to take it back as many times as I like until the sound is to my liking with a 10 year gaurantee for $650 less than the Difillipo...:):):) cant go wrong mate, so far the sound and quality are great but just want it a tad quieter but it looks like the stainless will get louder with time :confused:.
Just cos he gave me the same guarantee for the cam work I was getting done, he told me if I wasn't happy with his setup he would take it all out for free. I've had a number of dodgy dealings with them and a lot of bad advise... which I've told you about before.
Personally I'd rather pay the money for the tried and proven system and be done with it... no stuffing around having it modded a millions times. I think 4 times was how many times it took to get my last system right from there. :1peek:
RED R8
16-07-2007, 12:51 PM
Just cos he gave me the same guarantee for the cam work I was getting done, he told me if I wasn't happy with his setup he would take it all out for free. I've had a number of dodgy dealings with them and a lot of bad advise... which I've told you about before.
Personally I'd rather pay the money for the tried and proven system and be done with it... no stuffing around having it modded a millions times. I think 4 times was how many times it took to get my last system right from there. :1peek:
I hear ya bro, but so far the system is very good.The Difillipo is Too quite for what I was after and the price was out of what I wanted to spend,the Xforce 2.5 was too quite then the 3" was much louder than the 2.5,so I am just trying to find a medium loudness system which I am close.The problem with off the shelf cat backs is you take the gamble that the sound is exactly what you want if it isn't you either put up with it or sell it for half what you paid and do it all over again at least the option I took if it go's back 4 times to get it right then A:I get it how I want it and B:Its at their expense to stand by their sound garantee so customer (me) can't loose.
BLACK 346
16-07-2007, 01:04 PM
Should I get those sound files done for you Daz? I wasn't going
to bother until reading these latest posts :)
RED R8
16-07-2007, 01:09 PM
Should I get those sound files done for you Daz? I wasn't going
to bother until reading these latest posts :)
I would still like to hear yours mate , it may be catback #4..NOT.I am 85% happy with this one it just needs to be toned down a little so my neighbours, customers etc don't complain and Mr plod doesn't pull me over again and ask why my car Idles so lumpy.I now want to blend in a little more but still have a V8 note .PERSERVERENCE is the key.
KPWISHN
16-07-2007, 01:14 PM
Don't ease up on 'em till they get it just right. :stick: Your a hard man to please Daz.
You'd hate my car.:lol:
RED R8
16-07-2007, 01:18 PM
You'd hate my car.:lol:
Bet I wouldn't:bow::bow::bow:
I am not to fussy on exhaust note I have unfortunatly gone from a very quite cat back and jumped too very loud.:bawl:I loved it loud though.:)
VYSSion
16-07-2007, 02:13 PM
Fair enough mate... exhaust notes are such a personal thing. My old system was VERY loud at WOT... mostly probably due to the fact it had no cats. It was a nasty raspy sound too, not a sound I liked at all... but I had mates who absolutely loved the sound of it. The sound I have now is very smooth rumble at idle and normal driving which is great for me, but then very loud and aggressive at WOT.
Ahhh... we fussy bastards do make it hard for exhaust places out there - it would seem that no two peoples ideas on a "perfect note" are the same! :eyes:
RED R8
16-07-2007, 02:16 PM
Fair enough mate... exhaust notes are such a personal thing. My old system was VERY loud at WOT... mostly probably due to the fact it had no cats. It was a nasty raspy sound too, not a sound I liked at all... but I had mates who absolutely loved the sound of it. The sound I have now is very smooth rumble at idle and normal driving which is great for me, but then very loud and aggressive at WOT.
Ahhh... we fussy bastards do make it hard for exhaust places out there - it would seem that no two peoples ideas on a "perfect note" are the same! :eyes:
Too true Mark,one size does not fit all.:)
EXCESSV
16-07-2007, 02:54 PM
its good to hear your happy with the system and quality Daz.
Mark its quite sad to see that you had a bad experience with APC.
The guys i have dealt with at APC have been nothing but good to me and have looked after me.
the only hiccup with mine was that they failed to finish it all in the one day like they promised but they got in a 6:30am the next morning and i drove out of there mid morning.
apart from that i am a happy customer.
Too true Mark,one size does not fit all.:)thats what it says on the box tho :confused:
BLACK 346
16-07-2007, 03:04 PM
I would still like to hear yours mate , it may be catback #4..NOT
You have mail Daz :)
VYSSion
16-07-2007, 03:22 PM
Mark its quite sad to see that you had a bad experience with APC.
The guys i have dealt with at APC have been nothing but good to me and have looked after me.
Was this Perth or Wangara? It's Wangara I've had dramas with. :1peek:
EXCESSV
16-07-2007, 03:36 PM
Was this Perth or Wangara? It's Wangara I've had dramas with. :1peek:the perth one. i dealt with the APC brand owner Jim.
wangara is a franchise...still not an excuse for what they did to you although i dont know the full story of what happened with you mark.
Big_Valven
16-07-2007, 03:43 PM
From the past, the systems I have heard get a bit "smoother" as they carbon up, and deeper. I can't say it's any louder or softer, but different sound. Less harsh.
Merlin
16-07-2007, 03:55 PM
I thought they got louder with time as the baffles in the muffler wear out?
VYSSion
16-07-2007, 05:05 PM
I thought they got louder with time as the baffles in the muffler wear out?
Yeah, I think Daz is just talking about the first month or so... as the carbon builds up.
chillicatqld
16-07-2007, 06:34 PM
yep - they definately get a deeper, louder note to them with age/klms. My stainless system was sometimes I thought too quiet - but now after about 20,000 klms - it is a much more "throatier" noise... glad I didnt go too loud at first!!
RED R8
16-07-2007, 06:49 PM
yep - they definately get a deeper, louder note to them with age/klms. My stainless system was sometimes I thought too quiet - but now after about 20,000 klms - it is a much more "throatier" noise... glad I didnt go too loud at first!!
Thats what I thought may happen so its booked in on wednesday for a complete new system and to make it quieter ,get rid of the drone and raise one of the pipes that hang too low.
VYR8HSV
17-07-2007, 12:59 AM
Hey Daz.
Sorry to hear that you are having a few probs with the cat back..
Are you sure you dont want the x-force back? :deal:
What sort are they putting on now??? And did the other 1
have a bit of drone in it?? Mate i will tell you what.
Even the misses is getting sic of the drone we are getting :vpo:
Good luck with it mate.
Hope it all works out for ya..
If not we can always swap motors.. That will quiet it down a bit :)
Pete
6.2L.Club
17-07-2007, 01:25 AM
Was this Perth or Wangara? It's Wangara I've had dramas with. :1peek:
I console with ya there, ask for a comp, get a crow, one day get 400rwhp, on another get 356.:vpo:
Did they put a crossover in the system Daz? changed the note on mine HEAPs.
RED R8
17-07-2007, 11:27 AM
Hey Daz.
Sorry to hear that you are having a few probs with the cat back..
Are you sure you dont want the x-force back? :deal:
What sort are they putting on now??? And did the other 1
have a bit of drone in it?? Mate i will tell you what.
Even the misses is getting sic of the drone we are getting :vpo:
Good luck with it mate.
Hope it all works out for ya..
If not we can always swap motors.. That will quiet it down a bit :)
Pete
I hope its not the Xforce thats droning It had zero drone on my car,but I am sure you mean your VE as you said that had bad drone.My new one sounds good but still very loud so they are going to make an entirely new system tommorow and I have a list of minor things they can do with the new one.
I console with ya there, ask for a comp, get a crow, one day get 400rwhp, on another get 356.:vpo:
Did they put a crossover in the system Daz? changed the note on mine HEAPs.
I will check if it has a merge.
VYR8HSV
17-07-2007, 02:53 PM
Yeh mate it is the Clubby.
Its not on the car as of yet. Prob over the weekend when i can get
a bit of free time..
Cant wait to see what the new 1 turns out for you..
Pete
01vxss346
17-07-2007, 03:19 PM
my vx ss has a twin 2.5" red back system with crossover, high flow cats, and pacey extractors, no rear ressie either.
no droning, and just that mild rumble behind...WOT it wakes up and roars but its a v8 - thats what happens!!!!
it is a very crisp sound but not overly loud. ill try get a sound file for you?
imo one of the best sounding gen3s HOT/WOT :D very unique sound
VYSSion
17-07-2007, 04:25 PM
my vx ss has a twin 2.5" red back system with crossover, high flow cats, and pacey extractors, no rear ressie either.
no droning, and just that mild rumble behind...WOT it wakes up and roars but its a v8 - thats what happens!!!!
it is a very crisp sound but not overly loud. ill try get a sound file for you?
imo one of the best sounding gen3s HOT/WOT :D very unique sound
Does it have a cam? What other mods?
cholo
17-07-2007, 05:21 PM
sorry for being stupid but what does WOT mean? its been bothering me too much now cant stand it
VYSSion
17-07-2007, 05:55 PM
sorry for being stupid but what does WOT mean? its been bothering me too much now cant stand it
Have a read here.... Australian LS1 and Holden Forums (http://www.ls1.com.au/forum/showthread.php?t=4894)
WOT = Wide Open Throttle. :)
cholo
18-07-2007, 01:16 AM
thanx guys you're my heroes.. :eyes:
i can sleep in peace now..cheers
cholo
ATTNSEEKR
18-07-2007, 10:32 AM
should have gone to the dyno day and had a listen to the diffilipo twin3", you say this system you got now was alot cheaper, but you get what you pay for. how much has it cost you in time having to keep going back to get it changed. stick with whats been proven. good luck with it. :)
RED R8
18-07-2007, 10:52 AM
should have gone to the dyno day and had a listen to the diffilipo twin3", you say this system you got now was alot cheaper, but you get what you pay for. how much has it cost you in time having to keep going back to get it changed. stick with whats been proven. good luck with it. :)
How you go on the Dyno day Adam what did the silver beast make on their dyno? I have heard the twin 3" difillipo on Marks ute it sounds good but was $650 more than what I wanted to spend but I hear what your saying.
ATTNSEEKR
18-07-2007, 11:04 AM
385rwhp :) drop me a pm if you wanna catch up and have a listen to the diffilipo system
RED R8
18-07-2007, 11:10 AM
385rwhp :) drop me a pm if you wanna catch up and have a listen to the diffilipo system
385 is quite consistant with House of power,I will see how the new system sounds this arvo (fingers crossed I am happy) if its not what I am chasing I will have a listen to yours,I will no doubt get to hear yours when I am behind you at Kwinana..:bawl:
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