iMTB

I want a bigger throttle body and plenum and this seems like a great deal, only $250 for both and it's also the biggest size I've seen (78mm) but I'm wondering if it's too big.

I currently have:
-BBK Intake
-Mac O/R X
-Flowmaster catback (maybe replacing the mufflers with flowmaster 10 series or similar)

Adding around the same time at the TB/Plenum
-Longtubes
-4.10s
-Tune

Coming when I get the money (next year)
-Hitech Stage 2 Cams

What is the best size TB for our cars and is this too big?

lizzyfan

70mm is fine for your setup

iMTB

I know 70mm will work fine but that costs me alot more, is this going to give me less of a gain? Will I get more of a gain with this after I get my cams?

lizzyfan

Ahh, did not see the 8, yea 78mm (never heard of that size) will be fine will not hurt ya at all and give better throttle response

Soldier GT

For now to big (78mm). But with the mods you will be adding should be a nice set up...

pharding

I have been looking at this also....I was thinking it was too good to be true as it is priced at the same time as each of them separately

bluepony4.6

Yeah, I was checking out this combo in a catalog today. It makes the separate tBody and plenums look like a ripoff.

Ring of Fire

102mm

SilvrStang

78 is gona kill your power dude. Stick with 70mm N/A

Black_GT_02

i talked to a rep from American Muscle and he said without F/I you will typically see a decrease of .2-.3 tenths in the quarter.