Boilermongrelin
Crushed Exhaust
Hey peoples,
My vp has some of a stock exhaust (rear resi removed). Where it goes over the panhard rod, the pipe is crushed/dented. Is this a factory thing or has something dented it? Thanks
VT Ballin'
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Its probably factory as they just bend the pipe in a press instead of using mandrel bends. If you are happy with the stock exhaust but want a little more flow you could probably ask a exhaust shop to weld in a mandrel bend for you.
Boilermongrelin
it is on the outside of the bend, if you know what i mean. Not just a reduced diameter effect like a pipe bender
VT Ballin'
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Could have bottomed out at some point or had the exhaust get pushed up some how. Either way it would be restricting flow by what you have described.
Exhaust Guru
The stock exhaust has a flattened section there to clear the body brace just above it.
Boilermongrelin
Here is a pic I took -
Still reckon it is factory?
VT Ballin'
Banned
Yep, Holden is more dodgy then I am.
Boilermongrelin
Reckon this creates a whistling sound with high rpm?
VT Ballin'
Definately not a standard dent, get it removed.......2.5inch exhaust should do itWhistleing sound at high rpm = commodore, heard so many do it.
Banned
I've seenheaps of standard systems dented the exact same way.
Whistling noise is normal. Its generally the motor sucking in air.
Yea same, just trying to encourage a bigger exhaust :POriginally Posted by soop
on holiday
that dent is where the panhard rod has hit it
I tune the oldschool way fear on the passengers face and knuckle colour cant go wrong
tabbacco is still my favorite vegetable
thats dent is 100% stock i have had it checked out and it is and it is correct it does cause a whistle
Boilermongrelin
Ok thanks for the replies. Will I need an adjustable panhard rod to fit a 2.5"system?
VT Ballin'
Nah, an adjustable panhard rod isn't necessary.
Last edited by Shearer; 17-01-2011 at 08:27 PM.
Boilermongrelin
Ok. Thanks for the help fellas
VT Ballin'
Exhaust Guru
Does your's have the flexible section just above the join after the front muffler? If so, that is what is causing the whistle.
Boilermongrelin
Yeah it does. I'm gonna replace the exhaust with a 2.5" system with a rear resi. Do these sound any good?
VT Ballin'
Exhaust Guru
Depends on what you class as good. Exhaust note is a matter of opinion, what one person thinks sounds good, another will think it's shit.
With a rear resonator is generally a bit quieter than without one and will drone less.
Banned
It comes down to muffler quality.
A $200 system probably doesn't have exeptional mufflers. Am I wrong Abba?
yeh panhard rod hit it, my old stocko had exactly the same dent. Hmm while we are here "Not an abba fan": how is berkley mufflers in terms of quality.
i was told they are better than redback: stainless internals + thicker construction while retaining a very similar tone. no?
($240 fitted)
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