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Discussion Starter #1
The Mac Pro Chamber is available in 21/2" or 3". What's the difference? Is one better thn the other. The cat back would then have to match correct?:dunce:
 

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3 inches is way too big for a V6 and even most V8s.. stick with the 2.5"..you wont gain a thing going bigger than that.
 

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Larry Sergent said:
The Mac Pro Chamber is available in 21/2" or 3". What's the difference? Is one better thn the other. The cat back would then have to match correct?:dunce:
you really want 2 1/4" 2.5 is too big, you'll lose a ton of torque.
 

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Guys, he posted in the wrong section. Look at his sig, he's got a v8. Go with the 2 1/2, Larry. 3 inches is for cars making over 350 hp.
 

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Just noticed that!

:dunce:
 

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Discussion Starter #7
Whoops! My bad, sorry fella's.:rolleyes:
 
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