thats what i thought...

 

What happened then??

Did you like it??

Did it wake your shifts up??

Al.

 

wont have a chance to drive it till this afternoon, took the yukon this morning but ill let ya know if i notice any difference when i do

 

Okay, so I went and looked to see if I could do this, and all I could find were the 3 plugs on the firewall on the passenger side. I looked behind my air box and cannot find it. I checked the date mine is from 2/03. I would think with it being an early 03 that I would have the 03 ECU, how or where can I check to see if that is the case?

 

I'm waiting for mine to detonate so I have an excuse to ship it to Sharadon for their magic.

 

You were looking in the right spot and if you're able to do this, the correct plug is blatantly obvious. Because your manufactured date is so early in the year, you may have one of the left over 2002 4.7 PCMs. Sorry bout your luck

 

sorry took longer then i thought to get back, but i took her out last night and did notice a difference i wouldn't say something i would pay for if i had to but for a free mod for us unlucky as far as tuning goes 03 guys i would recommend it for sure

 

I have an 02 with the 4.7 and I did it last year, wen I did the air intake and e fan... So I'm not really sure about any gains.