ok, i have done alot of searching and reading about porting and polishing tb's and intake manifolds. one thing everyone says is if you bore out your tb even a lil bit you have to get a new butterfly valve to match the opening, is this true?? they say it will mess up your car, how tho?? i dont want to port alot right now, mostly polish the tb, but p&p the intake manifold. i just dont have the $$ right now for a bigger tb. any help will be appreciated! thanks

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2011 Nissan Xterra Pro-4x

2007 Kawasaki Ninja 650R

1996 Mitsubishi Eclipse RS-NX 75 shot, AEM CAI, P&P t/b and intake mani-SOLD

1964 Buick Electra 225-all original, all power options, 325hp, 445ft/lbs tq

I beleive that our tb butterfly's are actually bigger than they need to be. thats why it isn't straight up and down when fully closed. so i think you could port your tb slightly without gettin a new valve. anyone else?

Having Problems? Heres my Three step solution to anything 2gnt related.
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If not. Go here: here

If still nothing, your trying to hard. Start over at step 1.

if your gonna port your TB just open up the manifold side but don't do anything to the spot where the buttfly seals.

dsm/mitsubishi service manuals https://www.mediafire.com/folder/5k14qlaulb9s1/dsm_mitsubishi

service manuals(my whole collection) https://www.mediafire.com/folder/ac51jwwa3g1n1/automotive_manuals

yea what juggalo said ^ jsut port your manifold find a jeep 60mm tb for like 20-30$ at junk yard and match opening o that throttle body bro!! simple man

You can have it cheap, fast or good. Pick any two.

If you want it cheap and fast, it's not going to be good.
If you want it cheap and good, it's not going to be fast.
If you want it good and fast, it's not going to be cheap.

everyone says get a jeep tb. what jeep? model, year,ect

i think 4.0 liter search for jeep throttle body on here, youll find it

You can have it cheap, fast or good. Pick any two.

If you want it cheap and fast, it's not going to be good.
If you want it cheap and good, it's not going to be fast.
If you want it good and fast, it's not going to be cheap.