brand names stuff, what a jip! Now how much HP do you expect to gain from a cat back system? 5-8HP max? Plus an intake? another 2-5HP max, right (give or take a pony). My route was to buy a universal muffler, get custom piping done, and save the cash for my suspension. Call me cheap, I don't care, I used the money I saved to purchase suspension components. My exhaust is a nice, low tone that sets off car alarms all the time!!!

My one friend said, "Your car sounds wicked! Absolutely no 'puss' sound." Other people say it sounds nice and mean, not rice at all!!!
muffler $200piping - $130all CANADIAN dollars, so my system is around $200 US I figure (not the greatest at math so correct me if I'm wrong). Oh, its the dual tipped on a slight angle, looks hot!!!
The s14 came with a dual tip muffler stock, so a dual tip after market doesn't look outta place IMO.
If you want to swap motors, don't waste your money on the KA, you'll never make it back and it can be put towards an SR. Also tune your suspension (f & r tower braces, sway bars, springs and shocks). I'd recomend a coil over system, cause I'm piecing my suspension together right now, and when all is said and done, a full coil over system may cost another 1 or 2 hundred more, well worth it IMO. I'm wouldn't cheap out on suspension, or brakes, and you get the adjustability with a coil over system. Haven't put much though into brakes yet, probably go with the J30 brakes on the front, heard great reviews about them and is well worth the dollar.
Any Nissan motor would be a good choice to choose from, you can deciede on that yourself after you do months of research, just ensure that you take the turbo route! If you wanted to be different, I've heard of small block v8's, supra engine and the good ol rotary being dropped into the 240! If you are a speed freak, then RB26DETT all the way!!!
welcome to the club, tell us what you deciede on!!!