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View single post by MaDMaXX
 Posted: Sun Jan 7th, 2018 06:51 pm
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MaDMaXX
Hails from the land of rust!


Joined: Sat Oct 21st, 2017
Location: Oregon USA
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No, the truck came with 3 pre-cats (small cats for cold starts) and 2 main cats (the ones your truck needs/uses for general emissions.

The only other thing on the exhaust was the 2 foot long muffler in front of the back axle.
I removed the 3 pre cats, this made quite the difference in how it drives and feels (much easier and less restricted feeling) Obviously i replaced the muffler too.


I too wanted slightly more than stock and maybe some easier flow... I hadn't planned on removing the pre cats when i decided to get the muffler straight piped, but when i was there, we just went ahead and did it.
I'm glad i did, but it obviously made it louder than i had wanted - cats, like turbos, quieten down exhausts.

If i was recommending to others, i would say get a slightly larger, but still straight through muffler, leaving the stock cats is fine, but removing the pre cats is, i think, a real boon to this engine that was never designed to run with them.



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2002 - 3.0 - 4x2 - Edge

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