View Full Version : 6 speed in a G8?


Brdlvr
06-11-2011, 04:34 AM
I want a G8 so bad but; 1) don't have the cash right now. 2) it's only an auto. Anyone done a 6 speed conversion? or is it even possible with the computer and stuff? I'd like to see it!!!!

2fast02TA
06-11-2011, 06:30 AM
The GXP has the optional 6 speed but they are usually 5-7k more with the same mileage as a GT. Not very many made and I believe they were only made in 09 not 08. The GXP also has the 6.2L with 410hp flywheel compared to the GT's 6.0L with 365hp flywheel.

I wanted the 6 speed also in this car but wasnt willing to spend the extra 7k to have it with the GXP.

Havent heard of anyone doing a 6-speed swap in a GT but that doesnt mean it hasnt happened. Check out some of the G8 specific forums and you might find one out there. G8board .com and Grrrr8 .net are 2 boards I check out frequently.

2QUIK4U
06-11-2011, 09:08 AM
If you want a 6 speed manual get a GXP. There is one guy that did the swap to a manual in a GT and it cost him around $9k. It is not worth doing.

wreckwriter
06-11-2011, 09:43 AM
^ Correct, not worth it. Particularly since the auto car will be quicker and more consistent.

old_goat
06-11-2011, 10:26 AM
^ Correct, not worth it. Particularly since the auto car will be quicker and more consistent.

What he said.

1996firebirdformula
06-11-2011, 04:56 PM
The GXP has the optional 6 speed but they are usually 5-7k more with the same mileage as a GT. Not very many made and I believe they were only made in 09 not 08. The GXP also has the 6.2L with 410hp flywheel compared to the GT's 6.0L with 365hp flywheel.

I wanted the 6 speed also in this car but wasnt willing to spend the extra 7k to have it with the GXP.

Havent heard of anyone doing a 6-speed swap in a GT but that doesnt mean it hasnt happened. Check out some of the G8 specific forums and you might find one out there. G8board .com and Grrrr8 .net are 2 boards I check out frequently.

GXP LS3 6.2L 415hp

G8 GT is L76 not Ls2 361 hp wonder why didn't use Ls2 :bang:

old_goat
06-11-2011, 07:16 PM
wonder why didn't use Ls2 :bang:

Maybe so they could use a DOD engine that gets better gas mileage and therefore doesn't get hung with a gas guzzler tax.

TransWS6Am
06-11-2011, 09:43 PM
there were only 1,829 GXP's made, and as stated above, not all of them were 6 speed manual. So getting your hands on one is very hard, I'm hoping i can find one next year when I'm in the market for another car.

Sneakyws6
06-13-2011, 07:19 PM
Also none of the GXp's should have been hit with the gas guzzler tax, my car did considerably better than the sticker and based off of what I have seen I would of have been exempt of the $1800 tax on the GXP.