tonynalli wrote:
first off, the nitrous shot that your going to use will end up ruining your enginePERIOD. your cold air is a decent mod. im guessing 10.3 is some sort of wire size, but not sure. that will act as more of a tune-up more then anything, along with the plugs.
oil catch can is a waste of time, it will not give you any power per se, but it keeps you from burning any blow-by oil and your intake manifold wont get as dirty... plus mixing your oil into your gas reduces your octane levels..adjustable fule regulator wont do much unless you have larger injectors, aftermarket fuel pump, and some form of ecu tuning, it would be better if you went with a turbo setup to have that regulator.
the cat-back is a good thing, the coil overs will lower and make cornering better, and the strut tower brace is a good thing to do..
my recomendation is to save the money you would waste on the nitrous, catch can, adj regulator and buy an ecu tune and mabey some cams...youll find you would have more problems with all the other things you listed off then you would with ecu, cams, intake, exaust. good luck
Ok I see where you were going with this but there's alot of mis-information here to. First off a KA will hold a 75 shot all day long with no problems if the engine is sound. I know people who do it. It would have to be a wet kit of course. You can NOT use Irridium plugs with Nitrous either. You will burn the tips off the plugs the first time you spray. You have to use copper plugs and they better be NGK and 2 steps colder than stock. I think they're BKRE-7 plugs from NGK I may have the part # wrong. Forget those OBX wires to and get some NGK's they're the best thing for a Nissan. The oil catch can is worthless. period. Now the adjustable FPR will be useful if you have a walbro 255L fuel pump. With out it it's not going to do jack. I would suggest you get the Nismo one becaue it will bolt directly the your fuel rail. You will need a fuel pressure gauge with it. The fuel system in the Altima it good for up to 400hp so the fuel rail and bigger injectors are useless to be honest unless you're running boost. Same for the intake manifold. Cams do d!ck for the KA without re-tuning the ECU and even then you won't see much gain for what you're going to spend. It will give you better top end but that's about it.
Suspension mods are anyway good. I have an OBX CB and no problems so far. Just stay away from their headers cause they are JUNK! If you're getting coilovers please get some ground controls and not some cheap *** E-bay ones. You will be happier trust me. Oh and if you really want to get into the suspension you can put the Energy suspension control arm bushings from the 95-99 maxima in the Altima. You can also do the rear lateral arm bushings to. It's alot of work but it's work it. I have a write up on it somewhere it you're interested.
A few tips on running nitrous 1) don't spray below 3K rmps 2) invest in a WOT swithch and a window switch 3) Get an air/ fuel ratio gauge (wideband) Believe me it will all be worth it.