you can deff. make over 200 whp on a z6. I did 238 on a y7, with no vtec. The engine was internally stock. Just had a skunk2 manifold, clutch and flywheel, and my turbo setup. It ran great. Never had any problems. Plus the motor only cost me 80 bucks. Damn the timing belt for jumping time
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1996 civic dx hatchback - Honda tuning feature December 2012 "The black cloud"
1998 crv daily beater