All new at Lethal Performance is the 670rwhp 3.4L Whipple package. The 3.4L is indeed the most powerful supercharger on the market. The fastest twin screw 03-04 Cobra, Lightning and GT500 all currently run the 3.4L Whipple. In addition to that the 3.4L that we all knew just got better. That's because the 3.4L Whipple blowers now ship with the new Gen II rotor profile which flows more air, takes less rpm's to spin and offers higher boost levels than the previous rotor style. We've seen an increase of up to 2psi at the same pulley size then the Gen I blower. This means increased efficiency and performance. So we've taken the 3.4L Whipple and put together a complete package for a bolt-on kit capable of 670rwhp. The 670rwhp package uses the stock GT500 fuel system, stock injectors and requires no external pump driver. Best of all this is all done with 91 or 93 octane. This kit also utilizes the stock throttle body so you can also be assure that you'll have the exact same throttle response as you did before. This kit also allows you to run the stock hood and stock strut tower brace and will drive on the street just like the car did when it came from the factory. No blower package performs without the required tuning and that's why we've teamed up with Justin Starkey of VMP Tuning to offer the best performing tunes available for our Whipple packages. After extensive testing on our shop GT500 we're proud to say that this kit will turn your GT500 into a beast and it still looks and drives like it's stock. **The 3.4L Installation Kit consists of K-Member Spacers, Sway Bar Bracket Relocation Spacers, Custom Motor Mounts, Fuel Rail Spacers (Not needed for the 670rwhp Kit), All bolts, hardware and installation instructions for a complete and easy installation. We at Lethal Performance have tested the use of the K-member spacer kit both on the street and the track and there's no way to tell that it's even on the car. Making sharp turns or taking long road trips provide the same ride quality as a stock car. The components in this kit simply allow the blower to fit properly under the stock hood and does not change any dynamics or compromises any ride quality of the stock suspension **To attain the 670rwhp in this package some exhaust modifications were used. Kooks Longtube Headers w/Offroad X-Pipe and the Magnaflow 3" Catback System. Horserpower levels may also vary depending on weather, elevation and other variables. The testing that was done to create this 670rwhp package was in warmer FL weather with temperatures in the mid 80's. Customers in cooler temperatures will see higher gains due to cooler air temperatures.
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Lethal Performance 670rwhp Gen II 3.4L Whipple Package! - 
