lol, i've had to use duct tape before, my rubber joint connecting the plastic intake to the throttle body, its hilarious, my friends were like whats that, i said its super tape, it adds horsepower....lol
If i were you man i'd go with the rabid chimp pipe, i haven't got it but i'm sure its worth every penny, i'm just a broke college student with barely enough money to buy my beautiful supra gass......lol
For the coupler between the TB and plastic pipe/3000 pipe, I go to ACE hardware and grab a rubber couler from the piping sectioin. Theres one that fits perfect, but is about 1 inch too long. However, it has 3 grooves for hose clamps, so you can cut it at the end of the 2nd groove and it comes out perfect match. costs $3.