Bottle neck in Exhaust System ?

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06-13-2011, 09:08 PM

#11

99gtstang

5th Gear Member

Join Date: Jul 2006

Location: GA

Posts: 3,015

Quote:

Originally Posted by 7gtthrilla

Actually, it's fine to keep the cats on it, no harm in doing so and to be completely honest with you, taking the cats off are only good for sound. It actually takes a few hp away, but it's still a great mod to do.

I have boom tubes, after o/r x pipe install I lost top end power. No dyno, but it was enough to tell 4K plus I felt a loss.

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