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FAST Wiring Harness Main LS1LS2L - 301108
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FAST
SKU:
FST301108
|
- UPC:
- 036584176534
$453.95
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Fits these vehicles
Fitment not listed for this part yet — call or text 813-535-5801 and we will confirm it for your car.
Part details
- Part number
- FST301108
- Manufacturer part number
- 301108
- UPC
- 036584176534
- Brand
- FAST
- Part type
- Wiring Harnesses
- CARB
- Not for sale or use in California (no CARB EO)
- Prop 65
- ⚠️ WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov
- Special order
- Yes — ordered in for you; allow extra time
- Box size:
- 15.00 × 4.78 × 15.25 (in)
Finance it — pay over time
Bad credit or no credit? No problem. Lease-to-own with Snap Finance: no credit needed, approvals up to $5,000, as low as /week. Get started
Low monthly payments
Affirm, Klarna or PayPal Pay Later: see your exact plan at checkout. Checking won’t affect your credit score.
Bad credit or no credit? No problem. Lease-to-own with Snap Finance: no credit needed, approvals up to $5,000, as low as /week. Get started
- Affirm
- Klarna
- PayPal Pay Later
- Snap Finance
📧 Get Fitment Help
Verify parts fit & get product recommendations
Complete the job
Read before you buy
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FAST offers several main harness options to aC-Commodate most customers' needs. The XFI Main Harness is responsible for connecting your XFI ECU to sensors as well as digital dashes, EGT modules, and various optional accessories. The Main Harness also handles communication between the ECU and ignition devices. Main harnesses are available in TPI, LT-1, LS-1 through 9 (including truck/suv designs), Modern Hemi, Carburetor Conversions and even Rear-Engine Dragsters and Boats. FAST also offers Main Harnesses that come terminated on the sensor side but non-terminated on the ECU side to allow for a truely custom fit. All terminals, seals and connectors are available individually, so don't hesitate to try your hand at crafting your own custom harness from start to finish.
This XFI Main Harness is designed to connect engines that feature GM LS style sensors to our XFI ECU.
XFI Main Harness for GM LS1, LS2, LS3, LS6, LS7, LS9 and LS Trucks
- Clearance Item:
- N
- LTL:
- N
- MPN:
- 301108
- Proposition 65:
- Y
- Special Order:
- Y
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FAST
FAST Wiring Harness Main LS1LS2L - 301108
FAST Wiring Harness Main LS1LS2L - 301108 FAQ
No — this part has no CARB Executive Order, so it is not for sale or use in California or on vehicles registered there.
What's in the box above lists what the maker includes when we have it, and the maker's guide names any tools or extra parts.
Many parts are bolt-on jobs with hand tools; the maker's guide on this page shows the steps and the torque figures. If it is beyond your tools, a shop can fit it.
Check the vehicle list above against your exact year and trim before ordering. If something is off, call or text us at 813-535-5801 and we will sort it out.
Yes — monthly options show right under the Add to Cart button. Affirm, Klarna, PayPal Pay Later and Snap Finance are offered at checkout, and checking what you qualify for does not affect your credit score.
Install and care: Wiring Harnesses
- Before you start, read the maker's guide on this page end to end and lay out every part against the What's in the box list.
- Do torque every fastener to the maker's figure with a torque wrench, and re-check it after the first drive.
- Don't force a part that does not line up: check the vehicle list on this page against your exact year and trim first.