trinituner.com

yea tunners lemme kno..i kno the si stood originally for "Sequential Injection" but whats d difference if any..have a padna tell me it has to do with d car being sold in other countries and another 1telling me otherwise ..i considering buying 1so lemme kno please..

Si - Sequential Injection
SiR - Sport injection Racing (JDM with a suspension that was tuned for better handling)

^^ thats it......Well put

Just to add a little. The SiR b16a is the JDM and the Si is the B16a2. The JDM suppose to be faster and the cams would be much more aggressive.

the r

thanks fellazz

One other thing to note is that JDM engines are usually tuned for higher performance because pump gas in Japan is 98 octane and higher plus the Japanese usually reserve their most potent engines for their home market....that's why you get the best engines with RORO....most engines have to be de-tuned for US markets

good stuff but at the risk of sounding really non-carish what does JDM stand for?

Japanese Domestic Market

thank u i was actually goggling it and got the meaning. so here's another question u said u get jdm vehicles roro right? so whats the difference w a foreign used or is it the same thing?

same thing

Renaldo25, we used to get jdm vehicles which were foreign used BUT foreign used is a thing of the past.

ok no valid contribution but!

saw a guy with teh "si" badge at the back of his civic, and next to it was the "r" from the "GtR" badges lol lol

^^

maybe he running a rb26dett in a SiR

ricers ftl

jdm are purely japanese whereas foreign used can be either one of the following-singapore, japan , edm all rigth hand drive and can be legally brougth down to register