so my local dealer is returning my car completely to stock, so they want to put a stock exhaust back on cuz the current one is a "high flow" system and they say i will be getting inaccurate O2 readings. so i was just wondering if the GMPP one is considered "high flow" and give wrong readings?

 

i doubt it would since its a gm product

 

Why are they returning yourcar completely to stock?

 

yes why is this happening?

 

blew the motor so the only way they will give me warranty on the new motor is they put it back to stock

 

what parts are they taking off or took off? ill take em...

 

Why don't you just buy the motor and put it in yourself? Thats what I did.

 

Some people aren't as skilled as you are my friend

 

thats shitty what were you running??