Are you the first owner of this car? Then if so, I would think you would have no problem putting it on with no tune. I'm sure someone with a lil more experience can back me up or tell you right answer. But really, its not all that expensive to get a tune just to make sure you know yourself if the car is running about right where you what it to be whether its aggressively tuned or conservatively. Just check with some shops close to you that does that on their prices.

 

alright yea im the first owner well my brother got it brand new and he never drove it only like 1 in every big while but then i took over.

 

it will fit, and the o/r wont change anything as long as you turn off your rear o2 sensors with a chip or MIL eliminators. it sounds absolutely awesome, and the smell reminds me of an old school muscle car

 

From what your signature says a prochamber is gonna be a big step up from your hillbilly rigged exhaust you have now. Put the flows back on. Your car will not run lean most of the time they run rich when you change the exhaust to an O/R set up.

 

lean or rich i just want my car to run like right now lol but yea the striaght pipe is kinda ghetto but sounds f en mean. so u really think there will be a difference with just that

 

If you dont put the flows back on it is gonna sound like pure crap. Not the solid stuff either the watery crap that you have to wipe for ever to get off. Buy a tuner and fix your air fuel ratio if you dont like the smell but running rich from the pro chamber wont hurt anything.

 

running rich wont hurt my hp or torque so put my mufflers back on or what i just love how it sounds and if i put mufflers back on i want something loud like hella loud those 30 series were not loud to me

 

If you want to go cheap then put 40 series on. when you take the stock midpipe with 4 cats off it will make it very loud bad loud without mufflers.

 

oh thats another ? u no since here in cali its a fine not to have cats what if i get pulled over will i get fined cuz of the x pip not have the 2 cats

 

Its very doubtful, if you have a catted midpipe you probably wont get hit for the other 2 cats that are missing. They are just gunna look at it and see that you have cats and then shrug it off. You will probably never get pulled over for exhaust in a mustang anyway, mustangs sound GOOD. Ricers get ****ed with because they sound like **** and **** everyone off, lol.