Anyone know how to disable the 1-4 Shift on the 2005 GTO?

I believe there is a bypass chip or something of that nature for sale. I read about when I did a search for other GTO parts. I will look for a link.

Search this form for CAGS and skip shift. You will find several solutions.

http://ls2gto.com/forums/

Cheers

Thanks, guys! In the meantime, I've learned that this 1-4 thing is really a "window." It only occurs when the engine temp is up, speed is around 20mph and tach is about 2500. Before and after the window, you can shift normally from 1st to 2nd. When driving around town, I'm usually shifting below the window; when I'm on it, I'm usually above the window! In a nutshell, this problem is really a "non" problem!!! Thanks again for your input!!!