What are you guys running for pistons? I was gonna get a set of SRP's but now i'm having second thoughts. Some people are telling me to spend a little more for CP pistons because of the superior balancing, and say they operate quieter. I'm not a little bitch, but i don't want my built motor to sound like a diesel truck because of 100 worth of piston slap. Someone also wiesco were pretty good too. Any opinions? Also what CR should i be running? The stock SiR gen 2 is 10.4 and i know that's a little high to turbo. I was thinking somewhere around 9.5 would be safe and still give me good off boost power. Anyone here drop their compresison a whole point and notice shit worth power?