ecu tuned but not sure for what...

[haggard240]

i bough my swap and there is a sticker on it that says CTS TUNER and it says modefy.. and i took the top off and it deffinally has a tune i'm just not sure for what but has any one ever heard of that company? it's s14 sr by the way...

[g6civcx]

i bough my swap and there is a sticker on it that says CTS TUNER and it says modefy.. and i took the top off and it deffinally has a tune i'm just not sure for what but has any one ever heard of that company? it's s14 sr by the way...

What is a "tune" an how do you know if an ECu has one?

[haggard240]

there is a chip inside the ecu it says CTS on it ..

[fliprayzin240sx]

Its a rom tune...no way to know what the tune is for.

[4x4le]

if your swap is going to be a stock setup just move the jumper back so it will run off the stock map that is still on the ecu