ygtk09

Considering giving in my 2010 sedan for the coupe. I was wondering what you guys think if the development package is wroth it?'

thanks

Pickles

I love Coupe's ...going back to the American Muscle Car days....our last toy was a HSV LS2 powered GTO Coupe....BUT THIS TIME we needed 4 doors, so for us no Coupe, but the Development Package, or Performance Pack as it's called in OZ, was ALWAYS "on the list".....as was an LSD.
So, yes.....I reckon the Development Package is well worth while....I mean, it's not just a "tune" is it.....SLS crank, rods & pistons, give the engine, and the car, more "individuality" & "character"....IMHO.
Cheers, Pickles.

rory breaker

IMO go hard or go home. I wouldnt buy it without P31.

I'll throw a minor wrench in there - if you're not concerned at all about warranty issues, then I wouldnt go P31 and instead would put that money towards ecu/pipes which will be result in way more bang for your buck. Me personally, I dont want to deal with caselaw and "the mod didnt cause the issue" blah blah blah arguments with the dealer, so no go on mods for me.