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Featured Products

  Stillen 370Z / G37 Intercooled Supercharger System
Finally, HUGE power for the VQ37 engine! GoodSpeed Performance is excited to offer and install the Stillen VQ37 Supercharger System for the VQ37 engine 515HP - 438WHP - 343LB/FT Torque (see ** notes below) +155 Horsepower at the Wheels! @ 8 psi on 91 octane fuel (see ** notes below) This supercharger system took over a year to develop and involves some revolutionary designs. This supercharger system is developed to offer the customer easy upgradability and installation without requiring a hood replacement to complete the installation! With this supercharger system we bump the power output to over 500 horsepower! With lots of room to grow! Some of the more noteworthy features of the...GSP Price:
$ CALL

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  GOODSPEED Power Package for Infiniti G37
After numerous customer requests to come up with a power package to unleash as much power as possible from the naturally aspirated G37, GoodSpeed Performance is happy to share a GoodSpeed Power Package for the G37. While we love supercharging these cars, some customers prefer to retain the NA but still want more performance and sound! This package consists of 4 items: 1. Stillen Generation 3 Long TRUE cold air intakes 2. Stillen Hi Flow Catalytic Convertors 3. Stillen Stainless Exhaust with dual wall tips 4. Hypertech Max Energy Sport Power Programmer This combination adds additional power and has a more aggressive sound. The Intakes allow much more air volume, but more...GSP Price:
$2618.00

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  JP USA Co G37 Coupe S 07-up DISCONTINUED
G37 Coupe S 07~up Model # JP G37 PU Includes: Front under spoiler Side sport mud guards Made with OEM quality Super Polyurethane. NOTES: Full kit includes front under spoiler and sport side mud guards L&R. **Pictures shown with Infiniti OEM rear mud guards on G37 S model** Hardware is included with all of our products. For products that required double-sided tape, industrial grade double-sided tape comes pre-installed Full Paint and install available at GoodSpeed PerformanceGSP Price:
$759.00

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  Hypertech Max Energy Sport Power Programmer for G37
Max Energy Power Tuning extracts every bit of energy possible out of every molecule of fuel giving you more miles at part-throttle and more power at wide-open throttle. In order to increase engine efficiency, horsepower and torque, our engineers first make hundreds of dyno runs to optimize the spark and air-fuel curves point by point over the entire rpm band from just off idle to wide open throttle. Next we take the vehicle with the new tune to the track and the street to verify real world performance gains. The results...maximum power, quicker acceleration, smoother shifting and better driveability. This product adds approxiamately 6 HP and 10 TQGSP Price:
$449.00

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