Air and Fuel Superchargers, Turbochargers and Components

Boosted

Side-Mount Supercharger Kit

$4,795.00

SKU: BTM90FTC204ZJ40SM

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In Stock
Ships by Jul 29
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30 Days Return
INSTALL DIFFICULTY
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Description

The Boosted 1993-1998 Grand Cherokee 4.0 Liter 6 Cylinder Side-Mount Supercharger is a custom intake manifold system designed to enhance the performance of your Jeep Grand Cherokee. This kit leverages a modified GM 3.8L Eaton M90 supercharger, offering an easy installation with a typical 4-5 hour timeframe and no hood modification required. It delivers 4-7 pounds of boost on the stock 4.0L engine and has been tested at all altitudes. It is fully compatible with common performance modifications such as larger throttle bodies, cat-back exhaust systems, upgraded fuel injectors (703/784), roller rockers, and even camshafts with ported heads. For 'stroker' engines of 4.5L or larger, expect slightly lower boost levels but a significant power increase of +20-25%. The supercharger system includes a 7th injector (60lbs/hr) for additional fuel under boost and a liquid intercooling effect. It also features the Split Second FTC for boost timing retard and auxiliary 7th injector control, which is fully laptop programmable and comes with a base tune pre-loaded, capable of clamping the MAP sensor to prevent check engine lights and offering custom-made connectors for true 'Plug and Play' installation. A note of caution: this kit requires a '99 or newer 3-bolt power steering pump. Additionally, there is a significant lead time of 9+ months due to custom manifold availability.

Fitment

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Specifications

BrandBoosted
Part NumberBTM90FTC204ZJ40SM
CategoryAir and Fuel

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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