exhaust (yes another one)

[gatty]

hey guys, another exhaust thread..

I got a quote of 190 fitted for a 2.5" cat back system for my 33....

The thing is the guy told me they make it up there as you can't get system to just 'bolt-on'...is this BS?

Recomend me a moderetly priced system...mainly need it to sound sweet as stocko one sounds stupid

[nismoman18]

well the stocko one sounds like gas hissing out of the tail pipes so its not much of a noise. There are Cat back systems, however the exhaust shop u went to probably don't get aany in as most are made in Japan. 190 for a catback is fairly cheap man, they will most likely be fitting a mass manufactured muffler such as a lukey or redback and just mild steel piping which probably won't be mandrel bend. If i were you i would do abit more shopping beofer getting one fitted. I had a lukey on my NA, cost $280, top of the linelukey muffler tho, and mandrel bent piping.

Clint

Clint

[VIPERGTSR01]

low quality mild steel non mandrel bent exhausts should be left for commodores

[_turtle_]

yep thats a cheap price, u prolly will get a no name mild steel muffler. it will still be better than the stock exhaust and give u some growl. if thats all u want then go for it i reckon.

[gatty]

nismo man, 280 is fine...give me some more info

[paulr33]

well in comparsion a 3" exhaust for a turbo charegd model is about $900 fitted

thats with 5" muffler or 4", size of muffler doesnt affect price. thats stanless steel and mandrel bent pipes from the turbo back

[nismoman18]

i just got it done at carline mufflers man down on the coast, just Mild steel but mandrel bent and the muffler well it sounded horn as! like a reallly throaty growl. Just search around dude best thing to do.

Clint

[gatty]

what exactly is 'madrel bent' ?

so carline does them hey...and it as 280 fitted?

[HKS34R]

there are two type of bending from my knowledge. If I'm wrong about the following please feel free to correct:

Press bent - can be done by any exhaust shop. Causes pipe to become smaller in diameter where the bends are i.e --> ) (. Causes restriction in flow where the bends are.

Mandrel bent - requires more sophisticated bending machines. Pipe stays same diameter where the bends are i.e --> | |. Flow stays the same throughout the pipe.

[Nismodified]

i think pipes can also be "extrusion moulded" and give a better bend then mandrel bend, but i am not 100% sure of this.

[gatty]

ahhh, i see

thanks guys - i'm going to contact carline mufflers

[gatty]

i thnk i might go for this:

http://www.carline.com.au/ultraflo.htm

[nismoman18]

HKS34R yeah ur descriptions are precise. Mandrel bending machines stretch the pipe pretty much to create a bend that is same diameter all the way through. Im pretty sure i had a Lukey Turbo Muffler which isn't straight through but flow's really well and just sounded great.

Clint

[Cubes]

Remember you get what you pay for.

$190 is bugger all for an exhaust. You will probably get those nasty redback resonators that have protruding lumps that create a huge amount of backpressure/turbulence.

Ensure the mufflers/resonators they are fitting to the car have a smooth clean inside.. Hence the punched holes don't mave any material protruding in to where the exhaust gas flows.