Muffler Size

[phuriouss]

Hi guys,

Just wanted to know what the biggest size muffler tips I can fit on MY05 GT Sedan, w/o cutting the bumper?
Any clue what size the stock ones are?
I am thinking of getting 3.5 inch sized mufflers.
Any advice on the topic would be appreciated.
Thanks for the help!

[zch91]

3.5inch will be fine mate

[phuriouss]

Thanks!
What about 4 inch?

[zch91]

Yup!



See here for more details (as an example)

http://www.ultrex.com.au/subaru-liberty ... p-400.html

[phuriouss]

WOW Nice! Thanks heaps mate

[mynameisdaniel]

I believe the cut outs are smaller for the prefaclift? Probably best to measure it

[Robbks]

I have a pair of 4" tips that i was going to fit to my mufflers and paint black



the current ones are either 3" or 3.5" tips.. will measure them
See here for pics of them on my pre-fl wagon
viewtopic.php?f=68&t=21941

You can buy them too..!!

[paggaz]

I've got 4" tips on my Xforce system and there's still room for slightly bigger

[Mat04]

I have seen 4.5 tips on Xforce mufflers on sedans. I got them on my wagon with heaps of room

[phuriouss]

4.5 inch?? How loud would that be??
Is that a defect? That's insane! Anyone out there running bigger mufflers? Haha
have my eye on some Varex mufflers if I can save up enough money, if not my brother's got some 4 inch canons lying around and was thinking of fitting them up to the GT!
What do you guys reckon?

[paggaz]

4.5 inch?? How loud would that be??
Is that a defect? That's insane! Anyone out there running bigger mufflers? Haha
have my eye on some Varex mufflers if I can save up enough money, if not my brother's got some 4 inch canons lying around and was thinking of fitting them up to the GT!
What do you guys reckon?

It's not the tips that produce the high db, it's the rest of the exhaust which is the contributing factor. So really, you could have 4.5" tips on stock mufflers and still be legal

As a guide, my 3" catback xforce system with straight through oval mufflers and 4" tips produced 89db. Added a 3" dump pipe and it went up to 93db. Legal limit being 90db.

If you want a bit of variable subtlety, I'd save for the varex. Imo it's the better option.
If you want loud, just weld on the cannons until the novelty wears off

[phuriouss]

Thanks for explaining that to me! OOFFT 93 dB thats awesome lol
So if I understand correctly, just changing the mufflers will make it louder than stock but won't be enough to be defect?
I was thinking of just getting the canons fitted til I have enough for the varex! haha

[Mat04]

FYI varex mufflers are more defectable than being over 93db in sound

[phuriouss]

really how come?? damn thought they were adjustable so that when you see da cops; turn it down = all good
BTW anyone recommend a good exhaust shop in Sydney?
and how much am I looking at to get mufflers fitted?

[Mat04]

Where in Sydney are you? Liverpool exhaust are good, so is Sureflo in ingleburn and profab in narrellan