I would imagine as long as it's not setting off any check engine lights, it's probably not "hurting" anything, per say. It's not doing anything for performance though. Probably costing you a little torque and horsepower at a couple of spots in the powerband.
that is the same thing as the SLP Loudmouth exhaust system[ /QUOTE]
I was running the stock cats with no mufflers prior...This is definitely louder!
As long as you have cats you will have enough back pressure
Sounds good, just wanted to check!
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