hey guys...i just need some input here on how i should do my setup. Okay right now i have 2.25 inch flowmaster 40 series on my 97 gt. In the near future I want to do headers and a midpipe. What kind of headers should i go for and what kind of midpipe? Keep in mind i only have the mufflers on. Who makes an x pipe that would fit 2.25 inch mufflers? I would really appreciate it if you could even post some sites that sell what i'm looking for...thanks

 

no one makes a 2.25 x-pipe or h-pipe. you should get long tube headers for the most power. and the mid pipe is a personaly choice there isnt a big difference in power gain over an x or h or the prochamer. Me i like the h-pipe deep nasty sound.

 

I really like my setup so I would recommend the SLP LTs and the Short SLP O/R X-pipe :thumbsup:

 

Hooker LT's and Hooker X!

 

if you're going to use a chambered exhaust then you shouldnt use an x-pipe, it will sound very raspy. use an H or get a straight through exhaust with an x-pipe

just wanted to add that i have flowmasters with an x-pipe even though i say not to do your exhaust like that. but i have some other additions that make it sound better and not so raspy.

 

thanks for the input everybody...from reading what you guys wrote i think that i'm going to get a set of lt headers (not sure what kind yet). I'm gonna forget about the midpipe and just do the lt headers. Considering that i already have flowmaster mufflers...what do you think would sound better, slp or hooker headers? thanks

 

how are MAC l/t headers? i found a pair that look pretty nice and i know that mac is a pretty respected company. If i were to buy these headers...would i be able to replace my stock ones with these, and keep my stock midpipes(because i have mufflers now)?

 

This is just my opinion.. but I don't care much for MAC. I know there for awhile their LT headers weren't welded very well and had slag left in them, that was sucked up by the EGR valve and then got into the engine and got embedded into engine walls and stuff like that (they said they only found cases of this on 4v engines though). Tons of people run MAC LTs though so if you wanna go that route you should be fine. I just know that when I bought my LTs I wasn't gonna let money hold me back so I went for the SLP Creamic LTs and I've loved em.

 

i saw the slp ones but the price is like 700 something...its crazy. If i could get the money id definately spend it on them...do you have a stock midpipe also?

 

if i could save up around 700 something dollars then id think about it...lol but i really just want a set of l/t headers so i might go with mac. Would i be able to replace these with my stock headers and connect them to my stock midpipe or would that not fit?

 

No. Long tube headers require a different, short, midpipe.

 

what if i was to get midlength headers?? then would i be able to install them directly to my stock midpipes? The reason im not wanting to change my midpipe is because just a couple of days ago i got 2 1/4 inch flowmaster 40series mufflers welded on. And it would be a waste of money if i was to change my whole midpipe now

 

imo there isnt enough gains from headers for it to be worth the money unless you have alot of other work done. i picked up my x-pipe for $80 new so it was definitely worth the money to me. i found some shorties for $250 so ill get those but theres no way i would spend $700+ on headers.

 

the mid-pipe is different from the cat back. it wouldnt be a waste. was it just the mufflers or the whole cat back exhaust? find a good h-pipe or if you dont mind a little raspy tone get an x-pipe and you'll feel a pretty big difference sotp

 

nope. Stock manifolds are the same "length" as shorties.

I think you are confused. your flowmasters aren't welded to the midpipe. They're welded into the stock catback. The midpipe connects the headers to the catback.

 

yeah i think im confused...okay yeah i have my mufflers welded to my catback...but i still wouldn't be able to do a midpipe would i because they only come in 2.5 and my stock catback is 2.25?

 

That won't matter, the ball and socket will fit fine with a 2.5" midpipe and a slightly smaller catback.

 

okay cool...so basically you guys suggest getting some l/t headers and a shorty xpipe or an hpipe...and i should have no problem installing them to my stock cat?

 

yep! :glasses2:

 

how do you think that would sound...slp l/t headers and a short assembly xpipe with flowmaster 40 series mufflers?

 

That'll sound great!

 

okay thanks a lot for the help sacstoy...what did you spend for your headers and xpipe? close to a grand huh?

 

I'm still running stock headers. I'm currently running the stock H pipe too, had issues with my Mac off-road H.

So, I've spent a bit, but not much.

I picked up 5 rwhp on the dyno going back to my stock H once I put the blower on...

 

ohhh are you going to go back to the o/r? What do you prefer H pipes or X's? whats the sound difference also?

 

yeah im running stock headers with a upr x and flowmaster catback. like i said headers are expensive and not worth the money imo unless you have a lot of other work done. look into a pi swap if you havent done that already. if you want it to sound good just get an x or h pipe for now. upr has x pipes that sound good and will fit right into your setup for about $100. and you can do the work yourself. if you ever decide you want headers later down the road, any exhaust shop can cut the x-pipe shorter to fit lt headers.

 

personal preference. i like the sound of x's but a lot of people like h's. there's a website that has lots of clips of mustang exhaust tones but i cant remember what it is, somebody else please chime in...

also, it was stated a little earlier an x-pipe will give you a little more hp in the higher rpms

 

yeah i was looking at upr...they seem to have the cheapest xpipe prices ive seen. I was thinking about doing what you said earlier...just purchasing the xpipe for now...considering headers are so expensive...are you sure though that i can just purchase a xpipe from upr...get that replaced by my stock h...and later down the road get that cut to fit l/t headers?

 

yes, but if you go cat-less you will need to find somebody you know that does exhaust because the muffler shop could get all kinds of fines even if they dont do emissions in your state. some places dont care though.

 

I'm running SLP's Short O/R X-pipe.. it fits great with the LTs

 

www.mustangexhaust.com

need to register to hear the clips, but there's a lot on there of tons of combos.