Do the throttle bodies help improve 1/4 mile time?

 

worst mod ever.

 

Not worth the money imo...

 

how bout the underdrive pullies

 

How's about look here for more information?

 

aftermarket throttle bodies are terrible, they stick closed and have plenty of malfunctions, they dont work correctly and can get u stuck somewhere. just look at BBK Q&A section, theres plenty of comments on it. and ontop of that they hardly increase the airflow at all. as for the underdrive pullies, yes those are a good mod, but supposedly ive heard they can drain your charging system if you have alot of draws like aftermarket subs/lights etc.

 

Worthless on both

 

umm no im sorry that wrong.....do a quick search and you will find that underdrive pullies are a pretty good mod that pics you up a few hp....maybe on a sixxer they suck but not on a GT like the OP has.

 

Aftermarket TB's are worthwhile IF you go FI. Otherwise, they're more trouble than they're worth. A relatively small few claim they felt an improvement. UDP's are supposedly good for freeing up about 3-4 RWHP; just enough for those with a more sensitive butt dyno to feel. But every little bit helps.

 

Sorry, UDPs are not completely worthless but barely do anything for the money, how about that.