Ok, I don't have all the money in the world right now so I was wondering if I need to get a tun if I put a steg. ported eaton on this weekend. My mods are as follows:
-Efans
-FTFB
-Accufab & CAI
-Bassanni CB
-Heat Exchanger

So right now i have no tune at all. But if I put on this ported eaton with stock pulleys will I need to get a tune or should it be fine to romp around on? And how much will I notice the ported blower with stock pullies? I will avenyually go for a 4lb and a tune, but for now I am kinda limited with funds! Thanks!

 

I don't really know about the tune for sure, but I would say to get one just because you could fully utilize the more efficient S/C. I have a steig port job with just a t/b and a PSP fast air kit, and I only made 363 rwhp and 412 fptq all on the stock tune. My air full was in the low 13's which didn't look good but I hope that was a misstake because there is no reason it should lean out that much wot with just those 3 mods. I am going to get a 4# and a tuner here soon I just need to figure out where I can get the best deal. I have a 2003 by the way. thats just my .02 I am sure the big guys can help you better.

Nick

 

I would say you are ok as long you have stock pulleys. I ran a 4lb pulley without a tune for awhile and I doubt you will see more than let alone 4lbs with the ported blower.