[raysh]

call 2j, talk to Joe. i went from 03 to 06 uprev'd. Joe sent me everything that i needed, conversion harness ,ecu,cluster and gas pedal. everything was very straight forward with directions and with a built block and 1000cc injectors on E85 . started first time and runs great. 420 hp... switching to gt maf and bigger injectors to get MOAR POWAH! really you could do the switch in a weekend if not faster, i recommend it

 

[raysh]

when you call Joe @ 2j he will fill you in with everything. you also get an upgraded maf cuz 02-03 maf's suck ass. i am switching to the gt maf for more power as i have out hp'd the one i have lol

 

[raysh]

Imho go with whatever joe is sending you as they are the "kit" I used the same thing and everything went together perfect and started on first try. I have the 06 ecu with mine and love it. I only use 2 maps lo & hi boost. I have a wot box for my drag stuff. Most boost guys have afr gauges in their cars and all tuners I know use the exhaust sniffer for dyno tuning.