so when i sawp my k20a3 in do i need a k20 ecu, or can i keep my stock ecu and put the AEM EMS 01-05 civic with k motor, ecu thing or k pro

i dont get what i need and what i dont need please explain this for me, all these thing are explesive and i dont wanna buy the wrong thing

 

if you are putting an a3 in there and just want it to run like stock then you need an A3 ecu... also known as the PND ECU

if you are looking to tune it and have $1000+ to spend, then get a 02-04 KPRO

 

Kpro is far superior to an a3 ecu, and EMS.

It is the top tuning tool, and can EASILY be tuned to give u max performance for ur a3.

Also, later if u go turbo it will work perfectly on setting that up.

 

what about reflash

 

reflash only lets the ECU be used by a car that it wasnt originally installed in. There are also some reflashes ( like on the 06 Si's drive by wire) that can increase performance, but not by as much as kpro.

 

so if i use stock k20a3 ecu i have to reflash it

 

yes. and its not cheap.

 

cant i just use my stock ecu and buy the aem ems for 01-05 civic with k serise swap

 

y do u want ems? I already told u Kpro is the best? and ems is almost the same price.

I would do it in this order if i had to.

1)Kpro
2) Reflash, then slowly save for kpro
3)keep the d17
4) Spend the $$ on a GOOD bagel
5) get Ems.

 

i just thought that with the ems i can keep my stock ecu,

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Vantage &raquo;</TD></TR><TR><TD CLASS="quote">y do u want ems? I already told u Kpro is the best? and ems is almost the same price.

I would do it in this order if i had to.

1)Kpro
2) Reflash, then slowly save for kpro
3)keep the d17
4) Spend the $$ on a GOOD bagel
5) get Ems.</TD></TR></TABLE>

I agree with number 4. That sounds like one heck of a good idea.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bravo831 &raquo;</TD></TR><TR><TD CLASS="quote">i just thought that with the ems i can keep my stock ecu, </TD></TR></TABLE>

i am pretty sure u can with kpro too. Please someone correct me if im wrong.