03 GT

My car is an '03 GT with a SLP LM1 Catback and a K&N Air Filter with removed air silencer..

I was thinking of these underdrive pulleys http://store.summitracing.com/partde...5&autoview=sku
Now, I know they are the piggyback style. But, for $100 and using stock belt you cant go wrong.. Whats your opinions?

Next thing, This MAC 70mm Throttle Body http://macperformance.com/store/prod...Product_ID=228
What Plenums can I use with it? Can a Trickflow or BBK Plenum be mated with that Throttle Body?

I'm kind of low on mod money thats why Im sort of picking the cheapest things..

code3GT

NO, RUN AWAY from piggy backs...just wait and save for some Steeda's. Also, "I" recommend a 75mm TB and "yes" the TF or BBK plenum will work. Horsepower and QUALITY parts cost money.

Fryguy22

you've heard the saying "you get what you pay for".

This is extremely true when it comes to car parts.

MustangMan528

is it overkill to go with a 75mm TB on a stock motor?? From what ive heard, the 75mm ones are only for heavily modded cars

03sonicgt

Ehh, the 75mm wont hurt. You never now if you'll come across some money for some f/i.

04BlueGT

I concur. Don't skimp on the pulleys. Wait and get Steedas. I have a set of MAC piggyback pulleys in the basement and Steeda in my GT. BTW, the basement actually misfires now!

75 mm hurts nothing and you'll be set if you decide to install a hair dryer.