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Storefront >> Performance Packages >> 2004-05 Impala SS >> 3800SC Stage 4 Performance Package

3800SC Stage 4 Performance Package Price: $1,549.99
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- 1997-2006 Grand Prix GTP
- 1997-2004 Regal GS
- 2004-2005 Monte Carlo Supercharged SS
- 2004-2005 Impala SS

The Stage 4 Performance Package will transform your “midsize V6” into a high-performance sleeper that will have V8 sportscars taking notice! This package will turn a stock GTP into a mid-to-low 13-second car in one weekend. You will be hard-pressed to find a better bang-for-the-buck package like this anywhere else.

The Stage 4 Performance Package includes everything from the Stage 3 package and then adds:
- High Ratio Rocker Arms/Pushrod Package
- 3800 Performance Ignition Wires
- additional choice for supercharger pulley option (3.0” pulley is now available to choose)

Everything in this package are considered “bolt-ons” and can be installed with a normal set of tools in one weekend.

We also give you the option to simply rent or purchase the proper Pulley Puller Tool to safely swap your supercharger pulley, so that your modifying is easy and economical.

3800SC Stage 4 Performance Package Includes:
  • High Ratio Rocker Arms/Pushrod Package
  • PRJ Performance Ignition Wires
  • DynoMax Super Turbo Cat-Back Exhaust System with the option to upgrade to the SLP “Loudmouth” Exhaust System
  • Digital Horsepower Inc. v1.0 PCM. (click here to read full product information and the Disclaimer you must agree to.)
  • your choice of either a 3.4”, 3.25”, or 3.0” pulley
  • your choice of either a Press-On Pulley or the upgraded Thrasher Modular Pulley System
  • Thrasher Cold Air Induction Kit with the option to upgrade to the MSP Cold Air Induction System
  • Goodyear Gatorback Supercharger Belt
  • 160-degree or 180-degree SLP Performance Parts Thermostat
  • Optional Coolant Recovery Bottle for 1997-1998 owners
  • Optional Intake F-duct for 1997-1998 owners upgrading to the MSP CAI System
  • Optional Thrasher Supercharger Pulley Puller Tool for Rental or Purchase

You will NEED to run spark plugs with a colder heat range to match this performance package. Since everyone has their own personal preferences, experiences and opinions, we let you choose from one of our 4 different offerings to best-fit your preference/needs with which heat range and which type of plug (copper core, double platinum, or all-out race plug) you desire. See our 'Related Products' links below.

If renting the Pulley Puller Tool, a $100.00 core charge will be added to the $35 rental fee. The core charge is 100% refundable when the tool is shipped back out to us undamaged and with all parts, within 72 hours of you receiving it. For each additional day late, $10 will be taken out of your core charge.

Placing your Full Name in the text box below acts as your signature that you have read and agree to the DHP PCM Disclaimer in the above link or right here.
Enter Full Name for Disclaimer

Your Model and Year

Enter your Vehicle Indentification Number (VIN)

PCM Core Charge Selection

Select Pulley Setup

Select Pulley Size

Select Pulley Puller Option

Coolant Bottle and
F-Duct Option
(for 1997-98 owners)

Select Cold Air Induction System

Select Cone Filter Option

Add IAT Extension

Select Exhaust System

Select Thermostat Temperature


Related Item(s)
Code Name Price   Qty.  
AutoLite Copper Core Spark Plugs (3 heat ranges) $13.99
AutoLite Double Platinum Core Spark Plugs $36.99
NGK V-Power Spark Plugs (2 heat ranges) $14.99
NGK Race Spark Plugs $16.99

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