Hey im a newbie here I just bought an 08 hhr with a 2.0 turbo automatic.I sent it to the dealer and had the stage 1 kit installed it makes a comfortable 295 hp with 320 lbs torque I would love to put a shot on it Im just not sure what works and how it will effect my last year of warranty any other good mods would also be appreciated .I have read that the 2.0 is built stronger than the 2.2 and can handle 400 hp no problem and 500 hit and miss ...I am an old time big block racer and this coke bottle technology is very interesting to me Thanks in advance