catted x-pipe or TB+Plenum?

[40oz]

as subject says. I figure both help breathing. It might be a wash If there's a better way than flipping a coin to make a decision I need to hear it from people who've done it before me. The cost is essentially the same.

On the one hand, where I live there is about a foot of snow so putting in the X in the parking lot is not gonna happen, but doing the TB/plenum can be done any day close to freezing without undue torture. (I'm a hardy soul, and 30F isn't really all that cold on a sunny day.)

On the x-pipe side, I could pay a shop to put it in.

It's possible I could access a heated garage for either job if suitably motivated by weather, so there is nothing pushing me either way if the gains are equal on either side. I would lean towards whatever gives more gains up top/passing power/highway. TB/Plenum, full exhaust, cams, and gears will get done either way in the next year or so, it's just a matter of starting intake side or exhaust side first.

If it helps clarify things, my car is never going to see FI. (it's a money thing, not philosophical. And no, "horsepower per dollar" doesn't change the money thing )

Thanks in advance.

 

[fobra559]

What mods do you have on your car already?

 

[CobraRed_96_GT]

do the exhaust, not even a toss up

 

[40oz]

What mods do you have on your car already?

none.

 

[fobra559]

none.

Then do what CobraRed just said, start with the exhaust. Plenum and TB will do nothing much on a stock stang.

 

[myponyrocks]

Then do what CobraRed just said, start with the exhaust. Plenum and TB will do nothing much on a stock stang.

I strongly disagree. The T/B Plenum will smooth WoT as well as minor annoyances like hill climbing.

The mid-pipe will net more SotP gains, but in the end I think both are equal power wise.

 

[fobra559]

I strongly disagree. The T/B Plenum will smooth WoT as well as minor annoyances like hill climbing.

The mid-pipe will net more SotP gains, but in the end I think both are equal power wise.

Well he is eventually going to get both in the long run, but I was just saying that starting on the exhaust side would be better at this time. If he already had a CAI, then I would of said the T/B Plenum.

 

[CobraRed_96_GT]

im willing to bet the catted x will make the car sound better, show more gains, and be more noticeable to the driver than TB + Plenum. With exhaust your shedding 20lbs or so, loosing two cats, picking up .5" of exhaust diameter and using a better design. With TB+Plenum it's just simply bigger and shiney, and it's proven that a stock mustang doesn't even use the extent of the stock size TB much less a 75mm one.

 

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