558-103 LS2/3/7+ (58X/4X) ENGINE MAIN HARNESSLS2 3 7+ (58x 4x) Engine Main Harness for HP EFI & Dominator EFI

Fits the following:

Aluminum Coldside

500 HP at ¼ mile ETs in the 6s

This nitrous pressure gauge includes a 1/8-27 NPT pressure sensor

making them the perfect universal replacement for applications requiring more flow to support forced air power-adders such as turbo and supercharged systems

Test Voltage: 13

3″ Exhaust Downpipe

Featuring a dual internal baffling design

Requires no stock dipstick modifications

9% Better than the Stock Intake

Pick up some style and performance with Billet Specialties Redline LT

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