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Old 06-11-2006, 05:14 PM   #1
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Default GP exhaust resosance

Anyone else been in the back of a GP GT lately? My in-laws' 01 GP PT has a rather annoying exhaust resonance below 2k rpm.
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Old 06-11-2006, 05:43 PM   #2
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I have a similar resonance now with my new exhaust. It'* not that bad....just have to keep the revs above 2000.
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Old 06-11-2006, 06:14 PM   #3
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Default Re: GP exhaust resosance

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Originally Posted by J Wikoff
Anyone else been in the back of a GP GT lately? My in-laws' 01 GP PT has a rather annoying exhaust resonance below 2k rpm.
yes
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Old 06-11-2006, 06:30 PM   #4
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I have a loud, rumbling resonance that'* quite a bit louder than the L36 GP, tone is similar, also at 2000rpm. Completely stock exhaust.

Methinks it'* cause of the catalytic converter, the origins of which are completely unknown (it'* not a standard issue Bonneville/H-body feline converter) - but it fits
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