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exhaust (yes another one)

gatty

By gatty,
in Engines & Forced Induction

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gatty Mentor

gatty

Posted
Posted

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 :(

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https://www.sau.com.au/forums/topic/37441-exhaust-yes-another-one/
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nismoman18 Mentor

nismoman18

Posted
Posted

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

paulr33 Grand Master

paulr33

Posted
Posted

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

HKS34R Collaborator

HKS34R

Posted
Posted

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.

nismoman18 Mentor

nismoman18

Posted
Posted

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 Grand Master

Cubes

Posted
Posted

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.

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