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Old 22 Aug 2007, 11:32 pm
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Default Stock Exhaust?

I bought an '03 PT GT. I was wondering if my exhaust is stock. The reason I think it may not be is because there is no resonator and the bends in the pipe are not crimped. Is this stock?
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Old 23 Aug 2007, 12:57 pm
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Default Re: Stock Exhaust?

Is there an annoying drone at highway speeds? That indicates Aftermarket.
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Old 23 Aug 2007, 01:14 pm
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Default Re: Stock Exhaust?

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Originally Posted by m_quez View Post
I bought an '03 PT GT. I was wondering if my exhaust is stock. The reason I think it may not be is because there is no resonator and the bends in the pipe are not crimped. Is this stock?

There isn't a resonator on the stock exhaust of a '03 GT and all bends are mandrel bends. Crimped bends on a turbo exhaust will choke turbo spool up time. The stock exhaust is 2 1/4" OD. Not all aftermarket exhausts have a highway drone, either. If you are going to upgrade the exhaust go to at least a 2 1/2" catback exhaust with mandrel bends. If you opt to go with a muffler then the muffler has to be a flow through design. A chambered muffler will choke your turbo spool time and make your car slower. Remember, a turbo exhaust loves free flow.
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Old 23 Aug 2007, 02:00 pm
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Default Re: Stock Exhaust?

Is the stock muffler flow through or chambered? Sorry if this is an ignorant question. How about a magnaflow?
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Old 23 Aug 2007, 11:22 pm
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Default Re: Stock Exhaust?

I have the magnaflow 2.5 in SS catback exhaust. I love it, but i will admit it has a horrid drone at 32-3500 rpm. if you can deal with that then i say go for it. once i had the car on the lift it took about 5 minutes to install. and it's polished stainless all the from catback to the nice 4 inch tip.
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Old 24 Aug 2007, 01:27 am
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Default Re: Stock Exhaust?

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Originally Posted by m_quez View Post
Is the stock muffler flow through or chambered? Sorry if this is an ignorant question. How about a magnaflow?
On a turbo PT the muffler is a flow through design. Magnaflow does make flow through mufflers, but I don't know if it's true of all of their mufflers.
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