Go for a decat through silicone intakes, $39.99, it looks like a cat but has a straight pipe through it! or go a r34 GTR car, much higher flowing than most high flows (thanks scandy) not sure on a price tho
Ohh those 2 cats are really a burden! You try working fulltime, living at home, having meals made for you, bed made, clothes washed and ironed, then lets see how clean your car is!!!
And my car is still filthy you know i luv ya bunny