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FAST

FAST Firewire Spark Plug Wire Set GM LS Series Truck

MPN: 255-2420 Catalog #: 001505601 Category: Spark Plug Wires Check Vehicle Fitment

Product Details

Spark Plug Wire Set - Firewire - Spiral Core - 8.5 mm - Black - Straight Plug Boots - Factory Style Boots / Terminals - GM LS-Series - Kit

Having a high powered ignition control is only half the equation when it comes to your engine?s performance ? you also need to ensure that the voltage makes it to the spark plug. The FAST FireWire Spark Plug Wire was designed for performance and racing from the inside-out! For FAST, one of the most important aspects of engineering the low resistance FireWire was to ensure it could effectively filter the electro-magnetic interference and noise that occurs within spark plug wires. The answer lies within a unique reactive core design that effectively suppresses EMI ensuring trouble-free operation of the ignition control, EFI system and other on-board electronics. From a performance standpoint, the conductor of the FireWire features the lowest resistance, less than 25 ohms per foot, of resistance. Less resistance means the most spark energy reaches the plug gap for every firing. To combat the extreme conditions that wires face under the hood, the core and conductor are protected with a sleeve of double-layered, pure silicone. This design is effective against header heat, oils and abrasion, and to complete the package, our silicone boots can withstand 550?F!

Kit contains 8 wires. Designed specifically for GM LS Series truck/suv with 8mm sleeve.

Vehicle Fitment

Universal or product-specific fitment. Please review the product details and contact us if you need help confirming fitment before ordering.

Engine Compatibility

GM - LSMatched variant: LS

GM Gen III/IV V8; LS1/LS2/LS3/LS6/LS7/LS9/LSA/LSX

Fitment note: Engine compatibility is provided as a guide. Please verify all fitment details before ordering.

Product Specs

Brand
FAST
Part Number
255-2420
Catalog Number
001505601
Product Line
Spark Plug Wires
Category
Ignitions & Electrical
Type
Spark Plug Wires
UPC / Barcode
00021174115543
Vendor Product Category
Engine Components
Vendor Product Subcategory
Hardware Kits - Other
Length
12.40 in
Width
10.50 in
Height
2.70 in
Weight
1.85 lb
Units Per SKU
1
Freight / LTL
No
Ship Alone
No
Air Restricted
No
Prop 65
Y
CARB Approved
Yes
Clearance Item
No

Shipping & Availability

Current status 101 Available - Ready to ship
Estimated timing Usually ships within 24hrs

This item is showing available inventory. Most in-stock performance parts ship quickly, but timing can vary by warehouse, vendor cut-off time, holidays, and carrier pickup.

PROP 65 WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Inventory shown: 101 available as of 6/3/2026.

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