What approx will I gain with an accufab 70mm plenum with the mods I have in my sig? Will it not make a diff unless I change the throttle body as well? I am looking to get about 250 rear wheel horse by the time I am done with the car and am kinda lost on where to go after the exhaust. I know headers in an option but I don't really wanna put them on. It looks like it would be a total pain in the ****.

 

What do you mean a 70mm plenum? ...do you mean a 70 mm throttle body? Plenum are standard size, one size fits all 96+ 4.6's the only difference in them is the pcv valve size depending on your year! You normally see a 7-15 rwhp gain with a plenum!

PS: you will reach 250 rwhp very fast with a full exhaust!

 

Sorry, you are right. I didn't realize the plenum was designed for a 70mm tb. So, are you saying i could get 7-15 rwhp with plenum alone or tb and plenum combo? Even on a stock motor...

 

Providing you have a 70 or 75 mm t/b you should gain about 10-15 rwhp!

 

what size is the stocker? 2004 gt 4.6.

 

I don't know i think its a 65 MM t/b but don't quote me on that!

 

You are correct sir!

Hey Frito B what is the bullit Stripe?? btw nice car.

 

ITs the stripe that comes out of the center of the scoop. I ordered it off of ebay and that was the name they gave in the title so thats why I call it that/ If it has a correct name, let me know so I can update my sig.

 

I didnt think the Bullit came w/a stripe thats why I asked. If its the one Iam thinkin it is? It's the 35th anniversary Hood stripe! 99GTs that came w/the 35th anniv. package came with that Hood Stripe, Honeycomb grille and rear deck, Aluminum shift **** (which a lot of people call the Bullit ****) and different interior package.

 

35th anniv. it is. 40th anniv shared some of the same parts too, as did Mach 1 and Bullit. Be advised that some suppliers changed over the years, and NOS parts can vary slightly, particularly the decals.

Good look, though. I was at a car show at Alan Vigil Ford (south of Atlanta) that featured a fellow with the "#1" 35th Anniversary Mustang (black convertible). Nice car. Tied my car for first place in our category.

tripleblack

 

Yeah! Ive seen that car in the 35thanniversary registry very clean car! I kind off wished I kept my original rims now After almost 6yrs of owning my car NOW i want that look back

 

If you have a way to contact him, he might sell you his rims. His car was sporting a nice set of 18" chrome aftermarket jobs at the show...

tripleblack