Hi there people. I'm new to the forum. Lots of interesting stuff here. I hope I'm not asking a question that's already been thrashed out. I'm very interested in tuning my LS motor but on the fly or in real time. The Roadrunner packaged with EFI software enables you to do this. But then there's the HPtuners which is less expensive but does the same. I'm looking for anyone who might of gone down this track and is willing to share their knowledge on it. Thanks. Pete.