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2009 Pontiac G8 aka Karma
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567 Posts
Discussion Starter · #1 ·
Anyone know offhand the difference in pipe size of our exhaust GT vs base model?

I'm talking from the cat back to the mufflers.

Thanks in advance!
 

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SRM G8 GT | PBM G8 V6
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35 Posts
IIRC Base and GT have the same exhaust pipe size. Both are 2.25. Both have the same exact exhaust setup after the cats with the only exception being the base had single exhaust tips vs the dual on the GT.
 

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2009 Pontiac G8 aka Karma
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567 Posts
Discussion Starter · #3 ·
Thank you very much!
 
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