GT and GXP intake and TB

[GXPaycheck]

Are they the same part numbers?

[GeorgeInNePa]

They both use the LS3 intake manifold.

[Greg@PacePerformance]

Same manifold as George said but the TB may be different.
The 2008 and 2009 have the same TB but the GXP and 2009.5 GT have a different TB.

Did that make sense?
2008 and 2009 GT one TB
2009.5 GT and GXP another TB.

[J Wikoff]

What's the TB difference? Is there any advantage to one over the other?

[Greg@PacePerformance]

I don't know about the internal difference or why GM decided to make a change. There is a physical difference in where the actuater motor is located. I also know the new unit will not work with the older PCM.

[GXPaycheck]

Thanks.
BTW I miss-typed a tad. I meant to say intake manifold. I was wondering if the two could be swapped between a GT and GXP.

[GeorgeInNePa]

Thanks.
BTW I miss-typed a tad. I meant to say intake manifold. I was wondering if the two could be swapped between a GT and GXP.

The easy answer is yes.

Does your car have a bolt in MAP sensor? If it does, you have an LS3 intake, which is what is on all the GXPs. It might be possible for a very early G8GT to have an L76 intake, which uses the snap in sensor. Yes, I know we all have L76 engines, but most of us have LS3 intakes.

The sensor is the only difference, as far as I can tell.

[616 of 933]

Where is the sensor located?

[GeorgeInNePa]

Where is the sensor located?

Just behind the TB, to the left of center, on the front of the intake.

[pir4te]

Can anyone please confirm this is an LS3 'bolt-in" MAP sensor? ie same as GXP
It is on the stock manifold of 2011 model L77 and I need to swap for a ported LS3.
http://img.tapatalk.com/d/13/05/24/bepyheha.jpg

[randallGXP]

yes that is from an ls3.same as mine I have an o9 GXP

[pir4te]

Yahoo! Thx