B C said:
The KB kits are complete. Nothing else that you need to buy. Not even a tune-use theirs unless you want to risk your motor living on the edge.
I'm not sure but I don't think they will come with injectors, MAF, fuel pumps, spark plugs, and a decent tune. I spent $5,700 on my parts alone for the intercooled Novi kit, injectors, 03 Cobra fuel pumps, and fuel tank, powerpipe, and re-dyno tune all w/ no tax due to the purchases being made out of state. I already had my $350 MAF so just be ready a KB is definately the most expensive route out there so plan to spend much more than I did if you go that route. I installed everything in my sig myself. Personally I like to drive around w/o boost untill I ask for it. Saves gas, engine life, and gives me 3500 rpm worth of a chance for traction. However believe me when I want the boost it feels like it comes on immediate. Oh as of right now it's common knowledge that a good centri will make more boost than a KB will. Regardless you can feel the difference from 1000-3500 rpm w/ a centri anyway. It's not a measurable amount of boost, but the impellar is still turning at low rpms. Besides how long does it take you to get to 3,500 rpm in first anyways. After 1st gear at a WOT run when shifting up you never fall below a rpm you wont see boost at also. So it depends on what your needs are. I never floor my car in fifth, or any gear under 2K rpms anyway. Quick downshift, and your fanning the throttle, and fishtailing like mad in second

and my car is tuned way down for now b/c I have 102Kmiles on the engine - Either way you go will be awesome. Personally I love the KB whine, but my Novi turns tons of heads too. It makes plenty of noise. Depending on what your RWHP goals are I'm sure either one can get you there but word of caution not all centris are as capable as others. 650 is easily atainable, and safe for me w/ a properly built engine. What is your final RWHP goal ?
Here's an excellent deal on a intercooled more upgraded type mongoose kit -
http://www.modularmustangs.net/showthread.php?t=4235
