i just ordered a 55mm throttle body and underdrive pulley from mach v..i already have an aem cold air intake..will there be a noticeable difference when in intstall the throttle body and udp..what kind of horsepower will i gain..only engine mod so far is the cold air intake..let me know thanks

' i ' believe you will feel the most power with the cold air u got already. a udp will help rev up quicker 'they say'. i had one but took it off. and a 55mm will help a bit also.. which i still have on,,

Michael 99gs
HRC Stage 2
Stage 3 process begins anyone got a 420a block thats not spun/head for sale?

http://www.dreamwater.net/purplebeast

>' i ' believe you will feel the most power with the cold air
>u got already. a udp will help rev up quicker 'they say'. i
>had one but took it off. and a 55mm will help a bit also..
>which i still have on,,

I think you are the only person that didn't feel a gain with the UDP bud. You will feel a gain from it, and out of the basic mods that is the one you will get the most response from.

dude, i know 3 people within 20mins of where i live that took of the udp because we all really did not feel something. i know it does something ok, but you dont feel it. well you dont feel as much as people say 10+hp no one has even dyno this dang thing. if you look in the 'for sale section' there is a bit of people selling it dude? hmmm... oh yah i had the udp when i was n/a not turbo.. i took it off when i got turbo due to the fact it was pointless. also theres alot of people not only 420a owners that say a udp is so overrated for what its sopose to do. well once again this is just 'my' view on it. as well as 3 others locally to me...
cool


Michael 99gs
HRC Stage 2
Stage 3 process begins anyone got a 420a block thats not spun/head for sale?

http://www.dreamwater.net/purplebeast