4LT GS Roadster
Out of the box, early C5 Z06s made 385bhp, but the 2004 model year stepped that up to 405. The American icon is also ridiculously responsive and minor bolt-ons will churn out a daily driven, track-ready Evo, STi and GT-R killer-as long as you can live with the horrific GM interior.
When it comes to crazy, daily driven 'Vettes, tuned for domination on both street and track, few are as good as this 2004 Z06. It's an example of a project car thought out and built to a level we should all strive for. The car was purchased used two years ago, with only 3000 miles on the clock, by Steve Ruiz, head geek at StopTech. He had only one purpose in mind: to build the ultimate daily driven project car using readily available bolt-on parts. Oh, and it had to beat a Ferrari Enzo in pure performance.
Even with such lofty goals, the modification list remained short and simple. The 5.7-liter, all-aluminum, LS6 small-block V8 remains untouched internally. To push power output into the 500 to 550 ballpark (at the wheels), Ruiz added a high-efficiency Magnuson air-to-liquid intercooled supercharger system. The blower pushes a peak boost of 7psi into the stock 10.5:1 compression engine and then out through LG Pro long-tube exhaust headers with high-flow cats and a crossover pipe.
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