GM shows the love. 290hp, 340ftlb upgrade for $650
Senior Member
Joined: 07-05-2008
Posts: 5,464
From: Akron Ohio
When I dropped my HHR off today for the break fix I stopped in the parts dept. He called GM on this and had them on speaker phone and they told him April 2nd and they are not accepting any new orders before then. So I will be there first thing in the Morning on April 2nd to order mine.
Not suprised.
My order is in with the supplier so all I can do is wait right now.
I just hope GM's money issues do not cause any problems with them getting this kit out before I get it.
Please say thats from GM's suppliers 
New Member
Joined: 02-14-2009
Posts: 26
From: Georgia
Well, that being the case, why the original detune on the automatic version? It makes no sense to me, but I'm glad to hear the automatics can be upgraded.
Senior Member
Joined: 08-06-2008
Posts: 1,761
From: Grand Haven, MI
By the way, Welcome to the site.
Senior Member
Joined: 03-28-2008
Posts: 1,115
From: Oshawa
Senior Member
Joined: 07-05-2008
Posts: 5,464
From: Akron Ohio
They may just have not develped the torque managment as much on the original set up for several reasons. But the new set up is under warranty and will not hurt the tranny unless you do something stupied.
I expect even if both trannys will have the same power there will be a slight differance in perfromance by a little over the normal manual vs auto advantage.
The Grand Prix GTP had 260 HP with the V6 and they made the same tranny live under the GXP V8 with 305. Torque managment program prevents damage I suspect that is what is at work here.
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