COBRA parts on a V6
 

On what year car? It's hard to answer your questions without more info.

What V8 are you thinking of installing? 2v? 3v? 4v? 4.6? 5.0? 5.4? Keep in mind that you'll need to replace most of the drivetrain & the suspension with the new motor.

The reason some exhaust parts only fit the Cobra is it has IRS (independant rear suspension) whereas the V6, GT, and Mach 1 all have a solid rear axle.

You can upgrade the brakes on your car to the Cobra kit. Make sure they will fit with your wheel size.

its an 03 but im not sure what engine but lets say a 4.6 4v

It would probably be cheeper to sell your car and buy an 03 cobra if that's what you're trying to convert yours to.

yea i was actually in the process off doin that but realized i'd just be changin the engine nd other things anyway cuz i want an aluminum block n heads... besides that i couldnt get a cosigner. so now im just gonna work with what i got

The V6 catback and mid-pipe won't work, for obvious reasons. What you will need a GT mid-pipe and catback as the Cobra catback is made for IRS.

Don't expect your 7.5" rear end to hold up very long either if your planning on going drag racing. If you don't plan on beating on it and think you can get by, remember it's just an open differential and every time you take off in the rain, that one tire is gonna spin and you won't go anywhere fast.

ahem, excuse me for not knowing exactly what the 7.5 stands for but this is the first time ima be modifying a car, never mind it being my first car....
but whats the 7.5 stand for? and would i need anything stronger if i just wanted to hit a track up and didnt plan on puttin any drag radials on it?

what would be best for street/track handling? would changing to IRS help if possible?

sorry but1 more, would bassani aft cat back or borla stinger s-type cat back exhausts fit slp longtubes nd slpshorty x-pipes?

The 7.5 is the size of the rear axle. You will have to change to the 8.8 (the one that came in the v-8 mustangs) or the 7.5 will die a horrible death. It would also be easier to stay with the live axle set up (gt instead of cobra) because it is a direct bolt on and can be had for relatively cheap. as for exhausts, I (note I said me) would stay with the stock v-6 up to the cats and get an aftermarket cat back for the 6. Many of these are direct bolt-ons as well (read easier to install), unless you plan on doing this swap real soon. Lastly, most upgrades for the gt are for the v-6 as well (suspension wise), so you can install these and not have to worry overly much when you add the extra weight to the car.

thanx for all of your help, im not gonna be doin any real power modifyers until i get my V8 but i just wanted to make sure some of my hopes for my car werent too far outa reach. Ya'll helped me tho thanx

P.S. stay tuned for my nexxt post