i dont know if this is the rite place for this but i am wondering which is the best wideband guage to buy for use whith ls based engines tuned with hp tuners. PLEASE HELP

 

I bought the DynoTune a/f gauge and several others from them. They look like totally quality but I don't know if it is the best for what you are describing. The longer the thread is on top the more likely it will attract a sponsor to give you their side of it so here's a TTT.

 

yea, I'm curious too. I was told that the oxygen sensors that are already in the car is not the best thing to go off of.