Id say just get the K20a the K20a3 is quite a bit different plus the USDM a3 ECU wont run the K20a properly the a3 only has i-vtech cam lobes on the intake cam where as the JDM K20a has them on both the biggest diffrence between the two is the compression, the cam shafts and the ECU's
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.