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TooHighPSI LT4 Billet Supercharger Lid C7 Corvette Z06 (2015-2019)

Price
$1,199.95

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Currently Backordered - You can still place your order and we'll ship your order as soon as the product is back in stock!

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Installation Services

Don’t worry about the hassle — let our expert team at Forza Motorworks handle the installation for you. Our professional installation ensures everything fits and operates exactly as intended, giving you clean, factory-quality results, proper wiring or mounting, and avoiding the risks of DIY mistakes. You’ll save time, avoid frustration, and get peace of mind knowing the job is done right the first time. Contact us to learn about our installation services and enjoy a seamless upgrade from day one.

FAQ

Shipping Information
For items that are in stock, purchases made after 9am EST will be usually be shipped out in the next 1-2 business days. Please inquire to confirm lead times if you have specific time constraints. Orders will be sent via signature required at our discretion unless otherwise requested.

International Shipping
Any and all customs duties, taxes, import fees, and/or tariffs assessed in connection with the purchase shall be the sole responsibility of the customer/end user.

Return Policy
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return. To be eligible for a return, your item must be in the same condition that you received it, unused and in its original packaging. All returns are subject to a restocking fee based on item and package condition. Buyer is responsible for paying for return shipping costs. If you need a return label, we will email you a return label and deduct cost from refund. Original shipping costs are not refundable. Special order items are not eligible for return.

Cancellation Policy
In order to cancel your order you must email within 24 hours of placing your order or before your order has shipped, whichever occurs first. Special order items are not eligible for cancelation.

Exchange Policy
We have a 30-day exchange policy, which means you have 30 days after receiving your item to request an exchange. To be eligible for an exchange, your item must be brand new in box. Buyer is responsible for paying all shipping costs to exchange product.

Product Description

The TooHigh PSI Billet LT4 Supercharger Lid is a premium airflow upgrade for vehicles equipped with the factory Eaton TVS1740 LT4 supercharger, combining increased performance potential with an aggressive underhood appearance. Precision CNC-machined from 6061-T6 billet aluminum, this lid features a completely redesigned internal airflow path that reduces turbulence, improves airflow distribution through the intercooler bricks, and increases plenum volume to help support higher horsepower applications.

Compared to the factory cast lid, the TooHigh PSI design offers a 20% increase in plenum volume over the Gen 1 LT4 lid and a 15% increase over the Gen 2 LT4 lid, helping maximize airflow efficiency for pulley upgrades, port injection systems, and high-boost builds. The billet construction also eliminates the heavy factory ribbing, resulting in a cleaner engine bay and noticeably increased supercharger whine that enthusiasts love.

Designed by engineers with decades of Eaton supercharger experience, this lid is an excellent upgrade for Corvette Z06 owners looking to improve airflow, support future modifications, and add a show-quality finishing touch under the hood.

Fitment Notes

  • Fits 2015–2019 Chevrolet Corvette C7 Z06 (LT4)
  • Fits factory Eaton TVS1740 LT4 supercharger
  • Compatible with TooHigh PSI port injection plates
  • Direct replacement for the factory LT4 supercharger lid
  • Compatible with factory and modified LT4 supercharger setups
  • Professional installation is recommended

Included

  • (1) TooHigh PSI Billet LT4 Supercharger Lid
  • (1) Gasket set
  • (2) Anodized billet badges
  • Badge mounting hardware
  • Installation hardware

Product Specs

  • Material: CNC-machined 6061-T6 billet aluminum
  • Application: Eaton TVS1740 LT4 supercharger
  • Plenum Volume: 20% larger than Gen 1 LT4 lid
  • Plenum Volume: 15% larger than Gen 2 LT4 lid
  • Construction: One-piece billet aluminum
  • Finish Options: Multiple anodized color options available
  • Badge Options: Multiple engraved badge designs available
  • Made in the USA

Product Features

  • Optimized Internal Airflow – Redesigned plenum reduces turbulence and improves airflow through the intercooler cores.
  • Increased Plenum Volume – Up to 20% more internal volume than the factory LT4 lid for improved airflow potential.
  • Enhanced Supercharger Whine – Billet construction amplifies the signature Eaton TVS sound enthusiasts love.
  • Premium Billet Construction – CNC-machined from 6061-T6 aluminum for exceptional strength, durability, and appearance.
  • Supports High-Horsepower Builds – Ideal for pulley upgrades, port injection, E85, and custom-tuned LT4 combinations.
  • Made in the USA – Engineered and manufactured using premium materials with exceptional machining quality.

Why Upgrade Your LT4 Supercharger Lid?

As horsepower increases, the factory LT4 supercharger lid becomes more restrictive due to its limited plenum volume and less efficient airflow path. The TooHigh PSI Billet Lid addresses these limitations by increasing airflow capacity, promoting more even air distribution across the intercooler bricks, and reducing turbulence before air enters the intake ports. The result is a lid that's built not only to look incredible but also to support the airflow demands of serious performance builds.