Rear cat delete

runningonvenom

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Apr 9, 2011
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Hey guys i want to do a rear cat delete I'm wondering if I do that will I gain top end and lose low end? I dont really care about top end I just want faster 0-60 1/4 mile times.so if I lose any low end I'm not going to do it Also any recomnendations on coolant winter is coming and I want to have fresh fluid any info would be great
 
Lose all the cats and go with some high flow race cats.

Either way rear cats removed is better than nothing. You will gain everywhere.
 
I didn't really notice a change one way or another when I took mine off, and I monitor my MPG pretty regularly, esp after a mod. I'll tell you this much, if I'm driving normal, MPG hasn't declined at all and got maybe slightly better.
 
How's the sound level increase after rear delete with stock exhaust, no resonators??
 
When I first bought the truck All it had was a K&N intake & dynomax muffler on it. went to ocean city MPG was 16.4

Did all 4 cat delete, Roe TB & the next year did the same ocean city trip, same time of year, same day and all. MPG was 17.4 so I gained 1 MPG more.

Why pull 2 and not all ? get fake cat sims and have fun.
 

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