ive finally decided, im gettin the dual oval magnaflows. theyre actually only $50 each (for the 3", for some reason the 2.5" ones are $154 a piece! i have no idea why, they are exactly the same in all ways except the input is smaller,

there were a few other tips that had outrageous prices like that, while the same model with a different diameter was about $100 cheaper, it confuses the hell outta me...)