I have a '05 G35 coupe (auto)--I plan to install an aftermarket remote starter (Viper). Do I need an immobilizer bypass module for the car? If so, can someone recommend a good one with/without key?

 

Yes you need one I have the 5904v alarm with the immobilizer bypass module for the remote start. The only bad thing is you loose your spare key.

I think it's from directed. Idk whats the model/part # though. I only got the alarm box back.

 

this is what i used for my 2006 g35 coupe when i had it.