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You can get the same results if you gut the cat in the header ( 2004-2006 ). 2007 requires some additional effort.
 

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I think the only difference in the 07 is a larger cat diameter

But as rangerbob stated you will get the same results by gutting the cat and tuning the PC for no cat protection
 

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The only difference between the 3.5 and the 3.7 is the location of the O2 sensors.
 

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REDRUM_0603 said:
ok i have looked for the thread on how to gut out my cat but i just cant find it i found the one for the 3.7 but not the 3.5 any help wouldbe great or if just some quick simple instructions would be great. Thanks again
The write up is based off the 3.5L, with additional instructions for the 3.7L... Just ignore the 3.7L section.

Look it over again. :wink:
 
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