1998 GMC Ignitions & Electrical - In Stock Filter Options - Vendor In Stock Filter Options - Free Shipping on Orders Over $109 at Summit Racing

HP Tuners VCM Suite MPVI4 Credit Pro Packages

HP Tuners Introduces VCM Suite MPVI4 Credit Pro packages, the latest evolution of their industry-leading OBDII interface. Built for professionals and enthusiasts alike, the computer programmers connect your vehicle to VCM Suite software (5.2+) for faster, smarter, and more powerful tuning and diagnostics than ever before. With upgraded hardware, expanded connectivity, and future-ready Wi-Fi capabilities, the MPVI4 redefines what's possible in performance calibration and data acquisition. Models are available with 0, 2, 4, 6, or 8 credits. HP Tuners VCM Suite MPVI4 Credit Pro packages feature: * Improved standalone logging: the most powerful device yet, capable of delivering standalone logging performance on par with VCM scanner and a wired connection * Upgraded hardware architecture: New internal processor for improved data throughput and flashing performance; 30x more memory than previous generation MPVI3 * High-speed USB-C connectivity: Faster, more reliable communication with your PC and vehicle * Bluetooth 5.2: Seamless wireless connection for scanning, logging, and TDN support * Wi-Fi ready (future update): Wireless VCM Suite connectivity coming soon * Enhanced storage and efficiency: Increased onboard memory for robust logging sessions * Improved OBDII fitment: A revised, tapered design means a more secure connection and better compatibility with even more makes/models * Built-In Pro feature set: Standard on every MPVI4, enabling standalone data logging and external sensor integration with PROLINK+ * RGB status LEDs: Clear visual indicators for power, connection, and activity status * Cross-Platform Compatibility: Works with VCM Suite (5.2+), TrackAddict, and RaceRender

4.0 out of 5 stars ( 4 )

$599.95

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$699.93

Odyssey Drycell Batteries

Odyssey sealed rechargeable drycell batteries provide high engine-cranking pulses and are capable of 400 deep cycles. They can be installed on their sides or at any angle and have a 2-year storage life at 25 degrees C.

4.86 out of 5 stars ( 230 )

$523.99

MechMan Elite Series Cast Alternators

MechMan Elite Series cast alternators offer great output at idle RPM and excellent durability in a direct bolt-in package. Their 6-phase technology, combined with massive twin rectifier assemblies and 12 diodes, makes these alternators totally durable for daily use, while still maintaining great output at low-rpm. These alternators will make 180 amps at engine idle speeds—with a full 250 amp output at cruising speeds. The units come with an OEM diameter pulley, making them perfect for high-rpm and racing use. They're available for fitment on a wide range of cars, trucks, and vans from the 1990s and up. Order the model recommended for your application. (Note: Elite Series cast alternators may require a rectangle to oval adapter harness if your vehicle was equipped with the CS144 heavy-duty charging option from the factory. This is not common.)

5.0 out of 5 stars ( 9 )

$519.00

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$549.00

Summit Racing™ Battery Pro Packs

Summit Racing™ battery Pro Packs combo an Optima RedTop battery, Painless battery cable kit, and a tray/hold-down kit for a complete install in your vehicle. The high performance AGM RedTop is Optima's ultimate starting battery designed to deliver a strong burst of ignition power for a reliable start-up every time. The batteries offer longer life, more vibration resistance, no maintenance, and are virtually spill proof and mountable in most any position. Painless Performance battery cable kits include a red 1-gauge positive and a black 1-gauge negative cable with lightweight abrasion-resistant insulation capable of handling over 250 amps and heavy-duty terminals already installed, side post adapters, and high-amp crimp ring terminals. Their 16 ft. length make them ideal for trunk-mounted batteries and custom installs. The battery tray/hold-downs are made from premium aluminum and chosen to match the battery in the Summit Racing™ Pro Pack selected.

Not Yet Reviewed

$540.97

MechMan Elite Series Billet Alternators

MechMan Elite Series billet alternators offer great amperage output and durability. Their 6-phase technology, combined with massive twin rectifier assemblies and 12 diodes, makes these stunning alternators totally durable for daily use. Plus, the 6-phase hairpin stators make the alternators fundamentally more efficient, equating to incredible output at extremely low engine rpm, less energy wasted in the form of heat, and more horsepower to the wheels. MechMan Elite billet models are available for replacement or upgrade, and they are available in a unique selection of finishes and amperage outputs. Choose one designed for your vehicle.

5.0 out of 5 stars ( 10 )

$524.00

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$699.00

Ridetech Ridepro E5 Ride Height Sensor Kits

Ridetech Ridepro-HP Ride Height sensor kits upgrade your existing Ridepro E5 pressure-based system. They work together to deliver the ultimate air suspension management systems measuring both pressure and ride height accurately. With the addition of Ridepro-HP, ride height and spring balance (loads) are established by comparing the position of the ride height sensor to the air pressure within each air spring. Your car is leveled with no cross loading, which is especially important for dynamic driving scenarios where quick transitions occur, such as high performance driving, sudden directional changes, and panic stops. Ridetech complete Ridepro-HP kits include and feature: * Four ride height sensors * Four ride height sensor linkage kits * Group harness * 1/4 in. sensor bolts with Nyloc nuts and flat washers * Mounting tabs, heat shrink tubes, and installation guide * Easy installation * Heavy-duty ride height sensors * Bendable linkage rods with rubberized rod ends * Weatherproof connectors and wiring harnesses

2.0 out of 5 stars ( 1 )

$525.00

On Sale

MSD Blaster OEM Replacement Coils

When it comes to late model performance parts, nothing beats bolt-on and direct connection components—especially when they improve performance like these new replacement MSD Blaster ignition coils. They're designed with improved materials and windings to produce a stronger spark. This improved spark helps burn the fuel mixture more efficiently, resulting in smooth idle and heightened mid-range rpm power. Choose the OEM replacement designed for your year/make/model application.

4.72 out of 5 stars ( 630 )

$716.95

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$767.95

$644.95

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$690.95

On Sale

MSD Multiple Spark Coils and Coil Kits

MSD Ignition's Multiple Spark Coils (MSC) will fit in place of the stock GM LS coils and connect directly to the factory connectors. Once installed, you'll have the power and performance of higher energy sparks, crowned with MSD's multiple spark discharge. Increased spark energy and voltage, along with multiple spark capabilities, help improve the combustion process of the fuel mixture to create an efficient burn. This results in improved throttle response, smooth idle and quick starts, plus increased high rpm performance!

4.0 out of 5 stars ( 26 )

$977.95

$749.96

On Sale

MSD Street Fire Coils

MSD Street Fire coils will improve the performance of your late model GM or Ford vehicle. The E-core dual connector and TFI coils feature epoxy-filled construction and maximum output voltage. They mount directly in place of the factory coil and accept the factory connectors for an easy installation.

4.71 out of 5 stars ( 645 )

$614.95

$552.95

Chevrolet Performance High Torque Mini Starters

These mini starters from Chevrolet Performance feature a compact design that delivers plenty of torque and increased clearance for extended oil pans and header exhaust systems. These lightweight and powerful starters rely on a 3.75:1 gear reduction to spin a high-compression engine.

4.06 out of 5 stars ( 17 )

$518.86

MechMan Elite Series Alternators

MechMan Elite Series alternators offer the highest possible amperage and durability available in a reasonably sized alternator. Each one features MechMan's 6-phase technology combined with massive twin rectifier plates and 12 press-fit diodes for excellent durability. The 6-phase hairpin stators make the alternators fundamentally more efficient, equating to incredible output at extremely low engine rpm, less energy wasted in the form of heat, and more horsepower to the wheels. Choose the Elite alternator designed for your vehicle.

4.5 out of 5 stars ( 22 )

$524.00

MechMan High-Output Racing Alternators

MechMan 6-phase hairpin high-output alternators offer a solution to the inadequate alternators that come from the factory on specified vehicles. These replacement units feature twin rectifiers with 12 massive press-fit diodes, as compared to the small 8-diode rectifier in the stock alternator. Even mild performance builds will typically consume more amperage than what stock alternators can provide. Hairpin stator technology provides better high-rpm durability and better resistance to heat from the turbo manifold. The alternators utilize a high rpm-friendly larger diameter pulley, and bolt directly in place of the original equipment. Select the high-output racing alternator model recommended for your application. Note: A 4-gauge or larger positive and negative cable needs to be run between the alternator and the battery terminals for proper function.

Not Yet Reviewed

$519.00