Zero Resistance, Zero Compromise for Your C4 Corvette
The GMS38-1548MPG brings Granatelli Motor Sports' patented 0 Ohm ignition wire technology to the 1990 to 1995 Chevrolet Corvette 5.7L V8. Engineered to eliminate resistance losses between the ignition source and the spark plug, this set is a direct OEM replacement that keeps factory-style routing while improving spark energy transfer across the board.
Key Features
- 0 Ohm resistance for maximum spark energy transfer
- Direct OEM replacement, exceeds original equipment specifications
- OBD-II computer safe for seamless integration with the factory ECU
- Patented protector ring eliminates RFI and EMI interference
- Solid stainless connector cable with stainless snap-lock spark plug connectors
- High-temperature silicone boots rated to 500°F
- 8mm jacket with fiberglass-reinforced braid for abrasion resistance
Fitment
| Year Range | Make | Model |
|---|---|---|
| 1990-1995 | Chevrolet | Corvette |
Specifications
| Detail | Value |
|---|---|
| MPN | 38-1548MPG |
| UPC | 802735024975 |
| Cylinders | 8 |
| Engine | 5.7L V8 |
| Wire Diameter | 8mm |
| Resistance | 0 Ohm |
| Boot Material | High-Temperature Silicone |
| Boot Temperature Rating | 500°F |
| Connector Type | Stainless Snap-Lock |
| Jacket | Fiberglass-Reinforced Braid |
| Patent | US 7,185,622 |
| Country of Origin | Made in USA |
What's Included
- Complete set of 8 pre-terminated ignition wires for the GMS38-1548MPG application
- Stainless snap-lock spark plug connectors installed
- All hardware necessary for a direct install
About Granatelli Motor Sports
Granatelli Motor Sports has spent decades engineering performance electronics and ignition components for American Muscle and import platforms alike. Their 0 Ohm wire technology, protected under US Patent 7,185,622, is designed and distributed from their Oxnard, California facility with an emphasis on measurable gains in horsepower, torque, and fuel efficiency.
Related Parts
- Granatelli 1987 Chevrolet Corvette 8Cyl 5.7L MPG Plus Ignition Wires
- Granatelli 94-96 Chevrolet Corvette C4 LT1/LT4 Mass Airflow Sensor w/Cold Air Tuning
- Granatelli 97-04 Chevrolet Corvette C5 Bumper Saver (Pair)
FAQ
What is the GMS38-1548MPG?The GMS38-1548MPG is a Granatelli Motor Sports 0 Ohm ignition wire set built as a direct OEM replacement for the 1990 to 1995 Chevrolet Corvette 5.7L V8. It uses stainless snap-lock connectors and high-temperature silicone boots to improve spark energy transfer over stock wires.
Will these wires fit a 1996 Corvette?No. The 1996 Corvette uses a different firing order and coil setup, so this specific part number is limited to the 1990 through 1995 model years.
Are these wires OBD-II compliant?Yes. The GMS38-1548MPG is designed to work seamlessly with the factory ECU and will not trigger misfire or resistance-related codes.
Do I need to disconnect the battery before installing?Disconnecting the negative battery terminal first is recommended anytime you are working near ignition components to avoid accidental shorts.
What is the difference between the MPG and S wire sets?Both use the same 0 Ohm core technology. The MPG Plus designation refers to Granatelli's broader catalog numbering for this fitment, while the S series uses a slightly different boot and jacket finish depending on application.
How much horsepower can I expect from this upgrade?Gains vary by engine condition, but naturally aspirated small block V8s like the L98 typically see modest gains in the 5 to 15 horsepower range from reduced ignition resistance alone.
Are these wires resistant to heat under the hood?Yes. The silicone boots are rated to withstand continuous exposure up to 500°F, which covers standard under-hood temperatures on this platform.
What warranty does Granatelli offer on this set?Granatelli backs the GMS38-1548MPG with a manufacturer warranty against defects in materials and workmanship. Contact Granatelli's technical support directly for full warranty terms.
Can these wires be used on a modified or supercharged L98?Yes. The 0 Ohm design and RFI/EMI shielding make this set suitable for both stock and forced-induction applications on this platform.
Install Instructions
- Disconnect the negative battery terminal before starting.
- Remove one factory ignition wire at a time to avoid mixing up the firing order.
- Route the new GMS38-1548MPG wire along the factory path and connect it to the corresponding spark plug.
- Seat the stainless snap-lock connector fully at both the distributor cap or coil and the spark plug end.
- Repeat for each cylinder, verifying correct firing order before moving to the next wire.
- Reconnect the battery and start the engine to confirm smooth idle with no misfire codes.
WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
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