oxfordgt

11-14 rwhp increase from a TB/Plenum/CAI? LOL thats the funniest thing I have heard all night. You might get that much increase at the crank.

josh.davis

yeah you would still get atleast 11HP with stock exhaust.....but on the 70mm to 75mm, there seems to be confusion....if i was you, i would buy the 75mm.

Cassies01GT

If you had to get 1 out of the 2. Either the 75mm TB or the aftermarket plenum which would you buy first?

Mark99GT

Neither are going to make much of a difference without the other to compliment it (even then you're looking at like maybe 5rwhp). Ideally you should just save up and get them as a package deal. If you can't afford them both skip it all together (a short throwshifter would be a better investment).

And don't buy into the accufab hype. Sure they make great products, but when it comes to tb/plenum combos they're all about the same. The 200 dollar ones work just as well as the 400 dollar ones.

When I had my 75mm accufab tb/plenum combo (snagged it on ebay cheap) all I really noticed was better throttle response and maybe a tad more pull on top. But that alsocouldjust be the psych factor...

96GT226410

I bought a Mac 70mm tb for $40 used. Buy whichever one you can find the cheapest unless you're sure you're going F/I down the road. In that case get the 75mm.