Availability
Rely on our large selection of low-priced, high-performance automotive wiring harnesses to tell your speedster what to do next. With circuits ranging from eight to 24,...
Rely on our large selection of low-priced, high-performance automotive wiring harnesses to tell your speedster what to do next. With circuits ranging from eight to 24, and the ability to replace parts on vehicles from as far back as 1946, we have what you need to complete your next auto project. Featuring top brands, including Painless Wiring, Ron Francis Wiring, FAST, and Summit Racing, we can help you get the job done—no matter what the make and model. Harness the power today!
Rely on our large selection of low-priced, high-performance automotive wiring harnesses to tell your speedster what to do next. With circuits ranging from eight to 24, and the ability to replace parts on vehicles from as far back as 1946, we have what you need to complete your next auto project. Featuring top brands, including Painless Wiring, Ron Francis Wiring, FAST, and Summit Racing, we can help you get the job done—no matter what the make and model. Harness the power today!
Showing In Stock Items. Show All 24 Items.
ProMax Plug-N-Play Wiring Harness - Battery Rear – Dedicated Rear – Mid Bottle Location
Part Number: NXO-12-11200-RRM
Not Yet Reviewed
Estimated Ship Date: Dec 5, 2025 if ordered today
Estimated Ship Date: Dec 5, 2025 if ordered today
ProMax Plug-N-Play Wiring Harness - Battery Front – Dedicated Rear – Mid Bottle Location – Dual Bottles
Part Number: NXO-1211200FRMD
Not Yet Reviewed
Estimated Ship Date: Dec 5, 2025 if ordered today
Estimated Ship Date: Dec 5, 2025 if ordered today
ProMax Plug-N-Play Wiring Harness - Battery Front – Dedicated Rear – Mid Bottle Location
Part Number: NXO-12-11200-FRM
Not Yet Reviewed
Estimated Ship Date: Dec 5, 2025 if ordered today
Estimated Ship Date: Dec 5, 2025 if ordered today
ProMax Plug-N-Play Wiring Harness - Battery Rear – Dedicated Front – Mid Bottle Location
Part Number: NXO-12-11200-RFM
Not Yet Reviewed
Estimated Ship Date: Dec 5, 2025 if ordered today
Estimated Ship Date: Dec 5, 2025 if ordered today
Water Circulation Pump DIY Wiring Harness
Part Number: NXO-S0613
Not Yet Reviewed
Estimated Ship Date: Dec 5, 2025 if ordered today
Estimated Ship Date: Dec 5, 2025 if ordered today
ProMax Plug-N-Play Wiring Harness - Battery Rear – Dedicated Rear- Rear Bottle Location
Part Number: NXO-12-11200-RRR
Not Yet Reviewed
Estimated Ship Date: Dec 5, 2025 if ordered today
Estimated Ship Date: Dec 5, 2025 if ordered today
ProMax Plug-N-Play Wiring Harness - Battery Rear – Dedicated Rear- Rear Bottle Location – Dual Bottles
Part Number: NXO-1211200RRRD
Not Yet Reviewed
Estimated Ship Date: Dec 5, 2025 if ordered today
Estimated Ship Date: Dec 5, 2025 if ordered today
ProMax Plug-N-Play Wiring Harness - Battery Rear – Dedicated Front – Mid Bottle Location – Dual Bottles
Part Number: NXO-1211200RFMD
Not Yet Reviewed
Estimated Ship Date: Dec 5, 2025 if ordered today
Estimated Ship Date: Dec 5, 2025 if ordered today
ProMax Plug-N-Play Wiring Harness - Battery Rear – Dedicated Front- Rear Bottle Location – Dual Bottles
Part Number: NXO-1211200RFRD
Not Yet Reviewed
Estimated Ship Date: Dec 5, 2025 if ordered today
Estimated Ship Date: Dec 5, 2025 if ordered today
ProMax Plug-N-Play Wiring Harness - Battery Front – Dedicated Front – Mid Bottle Location – Dual Bottles
Part Number: NXO-1211200FFMD
Not Yet Reviewed
Estimated Ship Date: Dec 5, 2025 if ordered today
Estimated Ship Date: Dec 5, 2025 if ordered today
Nitrous Outlet DIY Stand Alone Dedicated Fuel System Wiring Harness
Part Number: NXO-12-11500-DED
Not Yet Reviewed
Estimated Ship Date: Dec 5, 2025 if ordered today
Estimated Ship Date: Dec 5, 2025 if ordered today
Nitrous Outlet WOT Switch with Pigtail Wiring Harness
Part Number: NXO-12-11500-WOT
Not Yet Reviewed
Estimated Ship Date: Dec 8, 2025 if ordered today
Estimated Ship Date: Dec 8, 2025 if ordered today
DIY STAND ALONE BOTTLE OPENER
Part Number: NXO-12-11500-RBO
Not Yet Reviewed
Estimated Ship Date: Dec 8, 2025 if ordered today
Estimated Ship Date: Dec 8, 2025 if ordered today
ProMax Plug-N-Play Wiring Harness - Battery Front – Dedicated Front – Mid Bottle Location
Part Number: NXO-12-11200-FFM
Not Yet Reviewed
Estimated Ship Date: Dec 5, 2025 if ordered today
Estimated Ship Date: Dec 5, 2025 if ordered today
ProMax Plug-N-Play Wiring Harness - Battery Rear – Dedicated Front- Rear Bottle Location
Part Number: NXO-12-11200-RFR
Not Yet Reviewed
Estimated Ship Date: Dec 5, 2025 if ordered today
Estimated Ship Date: Dec 5, 2025 if ordered today
ProMax Plug-N-Play Wiring Harness - Battery Rear – Dedicated Rear – Mid Bottle Location – Dual Bottles
Part Number: NXO-1211200RRMD
Not Yet Reviewed
Estimated Ship Date: Dec 5, 2025 if ordered today
Estimated Ship Date: Dec 5, 2025 if ordered today
ProMax Plug-N-Play Wiring Harness - Battery Front – Dedicated Front – Rear Bottle Location
Part Number: NXO-12-11200-FFR
Not Yet Reviewed
Estimated Ship Date: Dec 5, 2025 if ordered today
Estimated Ship Date: Dec 5, 2025 if ordered today
ProMax Plug-N-Play Wiring Harness - Battery Front – Dedicated Front – Rear Bottle Location – Dual Bottles
Part Number: NXO-1211200FFRD
Not Yet Reviewed
Estimated Ship Date: Dec 5, 2025 if ordered today
Estimated Ship Date: Dec 5, 2025 if ordered today
ProMax Plug-N-Play Wiring Harness - Battery Front – Dedicated Rear - Rear Bottle Location – Dual Bottles
Part Number: NXO-1211200FRRD
Not Yet Reviewed
Estimated Ship Date: Dec 5, 2025 if ordered today
Estimated Ship Date: Dec 5, 2025 if ordered today
ProMax Plug-N-Play Wiring Harness - Battery Front – Dedicated Rear - Rear Bottle Location
Part Number: NXO-12-11200-FRR
Not Yet Reviewed
Estimated Ship Date: Dec 5, 2025 if ordered today
Estimated Ship Date: Dec 5, 2025 if ordered today
HARNESS, XFI NITROUS RELAY, SOLID STATE
Part Number: FST-30366
Not Yet Reviewed
Estimated Ship Date: Jan 23, 2026 if ordered today
Estimated Ship Date: Jan 23, 2026 if ordered today
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