ATI 1GB212-D1 85-91 TPI (L98) HO Intercooled System D-1


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ATI 1GB212-D1 85-91 TPI (L98) HO Intercooled System D-1



Bolt On 375+ HP


An outstanding performance package from the factory, L98 Corvettes are even better with the addition of a powerful and proven ProCharger supercharger system. Backed by the strength and support of the industry leader, ProCharger offers you the greatest power potential and most choices for your 1985-1991 Corvette C4 TPI (L98).



  High Output Intercooled System with P600B   8, 10, 12 psi   55-75%+   2 core (85-89) twin (90-91)
  High Output Tuner Kit with P600B   specify   specify  
  High Output Intercooled System with D-1   10+ psi   75%+   2 core (85-89) twin (90-91)
  High Output Tuner Kit with D-1   specify   specify  




Proven to Produce the Coolest Charge Air Temperatures, Greatest Air Flow, and Largest Corvette System Power Gains

Working as a system, the front-mounted intercooler, high-flow air intake system and ultra-efficient ProCharger supercharger provides safe, reliable and enjoyable horsepower gains while still retaining the C4’s stock hood and exterior appearance. ProCharger is also the only company that offers intercooled supercharger systems for C4, C5 and C6 Corvettes.

An optional 3-year supercharger warranty is available.

Tuner Kits are also used on stock engines when a ProCharger dealer will be supplying the fuel system and custom tuning.

ProCharger 1991-85 Corvette C4 TPI (L98) Choices & Upgrades

  • Polished supercharger and intake tract
  • Omit FMU
  • Omit in-line fuel pump

85-91 Corvette C4 TPI (L98) HO Intercooled System with D-1 10+ psi 75%+ HP Gain.
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  • Item #: ATI 1GB212-D1 90-91 C4
  • Manufacturer: ATI ProCharger (Accessible Technologies Inc)
  • Condition: New
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Price $5,879.00
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