Stang4.6GT

Where will I be at with my '03 GT with all the bolt-ons. Headers, exhaust, pulley, chip, etc. I was guessing about 280-290 rwhp? Is that about right? Thanks

BoostedStallion

Its hard to say. You have to be more specific on what your getting(what kinda headers, chip, exhaust, etc.)

Dan04COBRA

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You will dyno around 220-230 RWHP stock.</P>


Headers, exhaust (avoid flowmaster at all costs)..should be 20+ hp right there, if you replace the stock h-pipe..(which isn't even that bad to begin with).</P>


Pullies are a couple free ponies, 3-5 hp is typically seen, do a CAI &amp; throttle body coupled with your high flow exhaust you will gain some serious ponies, along with a timing adjuster and I would feel safe to say you can acheive 270-280, maybe more with those mods.</P>

Black Horse

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That makes me feel good about my car.... with my mods, I ran 13.7 before the timing adj. and ported intake</P>

stanggt281cid

its really hard to say only because your not being spacific with what kind of parts your adding. your 03 stang has about 260 hp stock but that is what ford says the 2000-2004 cars are. but if you change the exhaust system and intake system there wil deffinatly be a noticable difference in horse power.

vfast

why add a bigger T/B when the restriction is the maf

CHARGED

If you want some crazy HP gaines I have a Vortech charger</P>


and Front mount intercooler for sale in theprivate classifieds.</P>


I gained 355whp onmy 96 GT and thats with the crappy heads and stock internals, on 10PSI.</P>


I was happy since the car came with 215 stock HP.</P>


But dont ask how long the fun lasted, Stock bottom end = zero compression on piston #2.</P>


It was worth it though.</P>

Monch

300 rwhpis the magic number for normally aspirated engines.you'll need to port/polish your heads and slap about every bolt on they make and get some new cams. you can get more with reallyaggressive cams, but it may not be a good daily driver then. sooner or later somebody will make new heads, then we might just push 340 rwhp or more. </P>


i'll let you know in a few years cus thats where i'm heading....</P>