so a friend told me i should just cut the muffler off my 05 dakota and replace it with a pice of pipe so will i lose any hp or torque or gain any ?
You mean just the muffler and not the cat?, because if you remove theso a friend told me i should just cut the muffler off my 05 dakota and replace it with a pice of pipe so will i lose any hp or torque or gain any ?
What was done with the two O2 sensors?Hi everybody, my truck actually ran a lot better after I had some generic turbo mufflers installed. When I got it someone had removed the cats and muffler and installed to pipes out to the rear. I think this caused it to run lean because it would pop out the exhaust going downhill, strangely enough I get better gas mileage now.
Adding dual exhausts to that vintage 3.9 V6 should be relatively simple - you can weld in the O sensor threaded fittings & you don't need a cross-over (the firing order of the V6 is more "balanced" than you get on a V8). Once you install your custom bent (I'd select mandrel bending instead of the cheaper ripple bending) pipes and mufflers of choice, you should have a truck with good sound & response.Sorry guys I should have given a little more details. The truck I was referring to was my 1987 Dak. 3.9 with carb, 02 sensors in exhaust manifold. The fuel injected truck is my wifes and she would skin me alive for messing with her exhaust, she likes her Dakota just the way it is. On my 87 I just couldn't stand the noise from the straight pipes, maybe in my younger days but not now.