Changing Muffler - Will it make a difference?

[Hotwire]

Hey all,

I'm seeking some opinions on a thought I've been having. Now, with a new born baby and only one (my) income, money available for modifications is now basically non existant. SO I've been thinking about the exhaust, and considering what I could do.

The rear muffler is probably the most restrictive part of the exhaust (baffled stock box) and I'm wondering if it would be worth while changing over the muffler for a better flowing unit? i.e. a kinked straight through box, ie.
......____
___/ ___
____/....
if you get what I mean. I had a similar muffler on a previous EF Falcon and the sound was great, about 85dB (so not too loud) but seemed to free it up a bit.

Now before people say "Go 3" cat back exhaust" I dont have $400-500 spare, Im thinking finding a second hand 2.5" muffler for $50-70, and paying an exhaust shop $30-$50 to weld on a pipe/flange and bolt it up to the stock exhaust. (presuming stock exhaust is 2.5", anyone confirm?)

What are peoples thoughts - any gains to be had, or would it really be just noise?

Thanks!

 

[VR-04-TT]

Stock Mitsu mufflers are really restrictive. So yes you will notice a difference. It won't be massive, but you'll feel the car just breathes better, especially in the top end of town.

That's what I've noticed with any mitsu that I've changed the muffler on.

 

[naughtika]

Lee.. that type of muffler is what im planning on getting soon.. will let you know how i go once i get it on.. that's if i get it before you do

 

[Guest]

Mate don' just buy a muffler ... you'll be wasting your money ... If u get some money down the track you'll want to do the exhaust properly, therefore that cash u spent on the muffler will be a waste. Put the money aside and gradually add to it ... you'll be glad u did. Or spend the cash on good oil, trans flush, so ur car lives longer.

 

[eddyvr4]

You could price up a lukey 3' straight through 'ultraflow' muffler. this is what RPW reccomend with their full 3' systems, and they may be quite cheap, and then no need to upgrade it again later.

Or you could try to open up the original and modify it, that would be real cheap and you may get a pretty good result, and i would say a few readers would be interested to see pics of what one looks like inside, and if anything can be done with it.

 

[Guest]

Hey all,

I'm seeking some opinions on a thought I've been having. Now, with a new born baby and only one (my) income, money available for modifications is now basically non existant. SO I've been thinking about the exhaust, and considering what I could do.

The rear muffler is probably the most restrictive part of the exhaust (baffled stock box) and I'm wondering if it would be worth while changing over the muffler for a better flowing unit? i.e. a kinked straight through box, ie.
......____
___/ ___
____/....
if you get what I mean. I had a similar muffler on a previous EF Falcon and the sound was great, about 85dB (so not too loud) but seemed to free it up a bit.

Now before people say "Go 3" cat back exhaust" I dont have $400-500 spare, Im thinking finding a second hand 2.5" muffler for $50-70, and paying an exhaust shop $30-$50 to weld on a pipe/flange and bolt it up to the stock exhaust. (presuming stock exhaust is 2.5", anyone confirm?)

What are peoples thoughts - any gains to be had, or would it really be just noise?

Thanks!

Sounds like you and I aren't too dissimilar!

Exactly what i have been thinking! Let us know what you come up with.

I have one question though?

Will an evo cat back exhaust even come close to fitting as i may have access to one at very cheap price!

 

[bradc]

It won't but you should be able to reuse the muffler

 

[naughtika]

Hotwire,

i've just had my cat back exhaust fitted last week.. all the way from cat it is 3" pipes & with magnaflow hi flow ceramic cat converter (same as LeeButs).. my main muffler is similar/same to what you've describe...

I can tell you it's not droney like those cannon type mufflers, but its got that strong sound, not loud but strong muscly (that's what how my gf described it).. maybe a 10" resonator will fix that.. we'll see.. i'll try to record it and post it here too...

also, i've chosen twin round tip to have that oem look, but the way the fitter had it on.. is a little on a slant and low.. I'll have to get them to fix it..

 

[Hotwire]

Sounds good Christian! Do you know what make/model your muffler is? Lukey etc? How much did the system cost you? and the cat? cheers

 

[naughtika]

i believe the muffler is Lukey.. it was painted black as well.. it cost me $550 including the tip.. which i might get replaced later on..

 

[Outlanded]

i believe the muffler is Lukey.. it was painted black as well.. it cost me $550 including the tip.. which i might get replaced later on..

how does it feel with the new exhaust?

the shop that did yours , do you think they would do my exhaust in 3" but use my existing resonators and mufflers as they are already 3", the the piping is 2.5 & press bent

 

[Taraska]

Hi mate. I am getting my muffler done tomorrow. I am getting 3inch canon with 4inch tip and 6inch body and it comes with adjustable silencer. All up $240 no more to pay.
Taras

 

[Guest]

what is it Taraska?

 

[frozen]

christian didnt you go 2.75"?

 

[naughtika]

nah, its 3"

Taraska, about time you get that fix..

 

[Outlanded]

Hi mate. I am getting my muffler done tomorrow. I am getting 3inch canon with 4inch tip and 6inch body and it comes with adjustable silencer. All up $240 no more to pay.
Taras

Taras,

so what was the go with your muffler in the end? has it got a fault?

 

[happymatch]

i got 3' turbo smart muffler in the garage from my old car, canon style with 4' tip. my stok muffler now is making clinking noise. thought about putting it in but saving bit more for full system. if i can not wait, i will just do it on the weekend.... i think it worth doing the full system beause

1. it is better
2. might have to upgrade later
3. and might regret.

you never know

 

[Taraska]

Its Zetti ( i hope i spelled it right). Sounds preatty good.

 

[Taraska]

Taras,

so what was the go with your muffler in the end? has it got a fault?

I am not sure but it looks like its from straightthru angles down and then up. The guy at the shop told me it would restrict a lot. I got it at home so maybe for the next meeting i will bring it with me.
Taras

 

[naughtika]

Taraska, bring it along on sunday, so we can investigate..

also Hotwire.. I think I was wrong about my muffler when i said it was lukey.. now i think it's redback which is what i think pipewerx usually use..