Reprogramming The Ecu

[Spyro]

hey you guys, i read about a product you can use to reprogram your ECU. you can fix the timing for better advance sparks. well just wondering if anyone has any input on this subject. thanks

[AWJ]

Do you have a link?

[Spyro]

no...actually it was in a car magazine

[Sadistic]

It wasn't a JET module was it?