[zinc76]

What's up fellow stangers, just need some feedback on my next performance mod.Im getting that fever again for a performance mod,something that doesnt cost more than 300 bucks including labor and that doesnt involve gears or pulleys.I was thinking of upgrading my throttlebody to 70mm and a intake plenum.I have a 01 mustang GT with the following modsrop K&N filter,Granatelli 3.5 aluminum intake,off-road X-pipe,Diablosport predator tune,UPR lowering springs and UPR camber caster plates.What kind of gains can i expect from a 70mm throttlebody and plenum.Thanks

[HMUSN]

3-5 rwhp

our 2v motors don't take well to bolt ons

unless you are s/c then the plenum/tb is a good idea

[00vabchgt]

+1. the gains will be minor.

[zinc76]

Thanks for the info HMUSN,I guess i'll reconsider and save for the gears.I know pulleys are a good bang for the buck,but this my third stang and i had pulleys in the past.I just dont like cooling and low voltage issues,just trying to think of some other bolt-on that makes a difference. Thank again

[zinc76]

What about a Mac cat-back system,is the drone real loud with a off-road X and is the power gain OK.Im running a off road X w/ the stock cat-back and i can do this mod myself which is cheaper.Thanks

[HMUSN]

mac is a halfway decent brand

i love my set up:
mac o/r x
magnaflow catback with 40 weld-ins.

it's pretty quiet at an idle and the drone isn't bad at all.

[02steedagt]

Originally Posted by zinc76 What about a Mac cat-back system,is the drone real loud with a off-road X and is the power gain OK.Im running a off road X w/ the stock cat-back and i can do this mod myself which is cheaper.Thanks

the MAC cat-back system is an awesome kit.... i would get that... your gonna have drone no matter what, you just gotta get used to it. what x-pipe you got?

[zinc76]

Whats up 02steedagt, I have a UPR o/x-pipe and i was told by a tech a brothersperformance that shorty headers for our cars doesnt make that much difference unless you with longtubes which a little too serious and exspense for me!

[02steedagt]

Originally Posted by zinc76 Whats up 02steedagt, I have a UPR o/x-pipe and i was told by a tech a brothersperformance that shorty headers for our cars doesnt make that much difference unless you with longtubes which a little too serious and exspense for me!

this is correct. the shorty headers only give you a couple hp since they are practically a replacement part. If you are thinking about getting new headers, you def want Longtubes (BBK, MAC, Hooker are good). They are expensive tho... and the install price is what usually kills people.

[zinc76]

I guess cat backs more or less make about the same power so im looking for easy installation and sound.But not wake-up the neighbors loud and a system that cost more than 300 bucks.P.S. has anyone heard anything about the TFX cat-back system from pacesetter,it sells for 250 w/ s/h included from performancecenter.com

[02steedagt]

Originally Posted by zinc76 I guess cat backs more or less make about the same power so im looking for easy installation and sound.But not wake-up the neighbors loud and a system that cost more than 300 bucks.P.S. has anyone heard anything about the TFX cat-back system from pacesetter,it sells for 250 w/ s/h included from performancecenter.com

correct again... you should gain 5-10 hp from the cat-back... and I've never heard of TFX. I'm not going to say it's shit, cuz I don't know, but I'll warn you that you get what you pay for.... and that's really cheap!