Thread: How much boost with a 3.4 pulley?

If you plan on modding further then headers is the way to go. If you feel like you are going to stop at the 3.4 then you really wont need it.

I too would recommend the headers as it provides better performance gains and it leaves options for future additions. The only downfall is the price. ZZP has the stainless headers for $700 and the pacesetters for $360. The majority of people on this site have pacesetters or so i have seen. Also [if I'm not mistaking] the stainless headers dyno at 30hp more then the pacesetters.

Aside from boost, has anyone actually documented the HP gain from dropping from the 3.8 to a 3.4? Assuming you dyno'd with all the supporting mods, then after the pulley drop, what sort of gain?