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BUICK 12590299 Gm Eaton Supercharger 3.8L

fits model: M90. make: Chevy, Pontiac, Buick. year: 1994–2004.

12590299 Buick 1994-2004 Gm Chevy Pontiac 3.8l M90 Eaton Supercharger

( Brand: Buick ), ( Manufacturer Part Number: 12590299 ), ( Type: Supercharger ), ( Ipn: 1995 ), ( Drive Type: Belt Driven ), ( Vintage Part: No )

Review BUICK Gm Chevy Pontiac 3.8l Eaton Supercharger fits M90 1994–2004

Introducing the Buick 12590299 1994-2004 GM Chevy Pontiac 3.8L M90 Eaton Supercharger, a high-performance upgrade for your vehicle that's perfect for those seeking an exhilarating driving experience. This supercharger kit is specifically designed for the 3.8-liter M90 engine found in various GM, Chevy, and Pontiac models during the mid-1990s to early 2000s.

The heart of this system is the Eaton M90 supercharger, a well-known and trusted name in the automotive industry for its reliability and efficiency. The Eaton M90 is a positive displacement supercharger, meaning it uses a rotating impeller to force more air into the engine, resulting in increased power and torque.

The supercharger kit comes with a number of essential components to ensure a smooth and effective installation process. These components include a high-flow air intake system, intercooler with all necessary cooling hoses, and all the required belts and pulleys. The kit also includes a wiring harness, fuel pressure regulator, and necessary sensors for proper engine management.

One of the key benefits of this supercharger kit is the significant power improvement it delivers. Expect an increase in horsepower and torque, providing noticeable improvements in acceleration and overall driving performance. The exact power gains will depend on various factors such as the condition of your engine, the specific modifications made to your vehicle, and the tuning of your engine management system.

Another advantage of this supercharger kit is its relatively easy installation process, especially when compared to other forced induction methods like turbocharging. The kit is designed to be bolt-on, meaning it should fit your engine without requiring extensive modifications. However, it's important to note that a professional mechanic or experienced DIY enthusiast should install the kit to ensure proper installation and tuning.

In conclusion, the Buick 12590299 1994-2004 GM Chevy Pontiac 3.8L M90 Eaton Supercharger is an excellent choice for those looking to enhance the performance of their 3.8L M90 engine. With its proven reliability from Eaton, significant power gains, and relatively straightforward installation process, this supercharger kit is a popular and effective upgrade for your GM, Chevy, or Pontiac vehicle.

Buying a Buick, Chevy, or Pontiac 3.8L M90 Eaton supercharger for a 1994-2004 vehicle can provide several benefits and drawbacks, depending on individual preferences and circumstances. Here's a detailed analysis of the pros and cons.

Pros:

1. Increased Power: The most significant advantage of installing a supercharger is the substantial increase in power. The supercharger forces more air into the engine, allowing it to burn more fuel, resulting in increased horsepower and torque. This leads to better acceleration and overall performance.

2. Improved Engine Response: Superchargers provide near-instant torque, making the engine feel more responsive. This is particularly noticeable during takeoff and passing maneuvers.

3. Better Driveability: The supercharger provides a smoother and more consistent power delivery compared to a turbocharger. This results in improved driveability, especially in daily driving conditions.

4. Better Fuel Economy: In some cases, a supercharger can provide better fuel economy compared to a naturally aspirated engine or a turbocharger. This is due to the supercharger's ability to deliver power more efficiently at low engine speeds.

Cons:

1. Cost: The upfront cost of purchasing and installing a supercharger system can be high. This includes the cost of the supercharger kit, installation labor, and any necessary modifications to the engine or vehicle.

2. Maintenance: Superchargers require more maintenance compared to a naturally aspirated engine or a turbocharger. This includes regular oil changes, belt replacements, and occasional supercharger belt tensioning.

3. Reduced Lifespan: The constant operation of the supercharger can lead to a reduced lifespan of various engine components, such as the engine bearings, piston rings, and timing chain.

4. Increased Engine Noise: Superchargers can produce more engine noise compared to a naturally aspirated engine or a turbocharger. This can be a desirable feature for some, but it may not be preferable for those who value a quieter driving experience.

Conclusion:

The decision to buy a Buick, Chevy, or Pontiac 3.8L M90 Eaton supercharger depends on individual preferences and circumstances. If you prioritize power, improved engine response, and better driveability, then the benefits of a supercharger may outweigh the drawbacks. However, if you're concerned about the upfront cost, ongoing maintenance, potential engine damage, or prefer a quieter driving experience, then a supercharger may not be the best choice for you. Ultimately, it's essential to weigh the pros and cons carefully before making a decision.

Recommendation:

If you're considering purchasing a supercharger for your vehicle, it's recommended to do thorough research on the specific model and its compatibility with your vehicle. Consider consulting with a professional mechanic to assess the feasibility of the installation and the potential impact on your engine and vehicle. Additionally, be prepared for the upfront cost and ongoing maintenance requirements. If you're still unsure, consider exploring alternative performance modifications or waiting for technology to advance to make the decision more informed.

Details:

Be sure to view all of our photos and read the full. 1994 2004 GM Chevy Buick Pontiac 3.8L. The item must be in its original condition and markings. Item may have physical differences than what is shown in the photos for listings with quantities.

We inspect the item for any physical damage. Verify installation and/or programming requirements: This item may require programming, flashing, or coding in order to work with your vehicle. Documentation that the part could not be programmed and verify installation requirements. Your original part number MUST match: 12590299.

PARTS ONLY sales are FINAL. The following must be sent when you open a return:: A photo of the original part number needed.

part #: 12590299 price

  • $12.99

specifications reppchargers:

  • for models: M90
  • for makes: Chevy, Pontiac, Buick
  • for years: 1994-2004
  • brand: Buick
  • mpn: 12590299
  • type: Supercharger
  • ipn: 1995
  • drive type: Belt Driven
  • vintage part: No

offer reppchargers:

  • best offers: True
  • started: June 25, 2025
  • sold: 0
  • quantity: 1
  • availability: In Stock
  • options: Ship-to-home

seller reppchargers:

  • city: Longmont, Colorado
  • # reviews: 1224
  • rating: 98.7%

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  • cost: $0.00
  • service: Standard
  • transit: 2-6 Days
  • type: Fixed
  • class: Standard

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  • credit card: Mastercard
  • wallet: Google-pay

returns reppchargers:

  • policy: Returns Accepted
  • paid by: Seller
  • time: 60 Days

general reppchargers:

  • Air Fuel Delivery > Turbos, Superchargers Intercoolers > Superchargers Parts
  • condition: Used
for models: m90, for makes: chevy, pontiac, buick, for years: 1994-2004, type: supercharger, drive type: belt driven, vintage part: no,
category: auto parts > air fuel delivery > turbos, superchargers intercoolers > superchargers parts, sku: 2656571420463603,

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