What's best depends on what you want. If you're looking for the best flow numbers, Borla, Magnaflow, and Flowmaster will be your best choices. Personally, I prefer the deeper sound of the Magnaflow or Borla systems. I'm eyeing a Magnaflow for mine and will probably get one in the next couple of weeks.
I was looking at cutouts maybe electric ones I have cold air intake, h.o. cams, controller, headers, but the cats are still in I feel like they are a bottle neck, so I'm thinking cutouts will flow even better.
Not trying to distract from the actual subject of these questions, but does anyone know IF they make electric cutouts that would open into another system like "Side Pipes" and where I might find them, IF they do make them? I'm looking at a different sort of setup.
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I don't know if this will work. to install the cutout you have to put in a Y. You can turn it however you want. you can turn it to the side and bolt the secondary exhaust behind the cutouts keeping in mind that the exhaust will follow the least restricted path.
i put a flowmaster 50 series on my 02 dakota 4.7, at first it was quite but once it broke in it sounds great! not too loud just an aggresive tone, ver quiite at idle then opens up once u get on it, the whole setup was 217 dollars without s&h, deffinatly recomened it!