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All Products

This collection includes all P1-Underground Tuning services, from custom SCT and HP Tuners calibrations to PCMtec multi-tunes, boosted setups, E85, ghost cams, and tuning add-ons.

23 products

Stainless Works Long Tube Headers
Regular Price$1,699.99Sale Price$1,615.00
May Savings Event
Cobra Jet
Regular Price$1,189.99Sale Price$1,130.50
May Savings Event
McCleod Racing Twin Clutch Kit
Regular Price$1,399.00Sale Price$1,329.05
May Savings Event
Rear Quarter Panel Decal
Regular Price$79.99Sale Price$76.00
May Savings Event
2024-2025 Ford Mustang LTH/Cats plus Install
Regular Price$2,999.00Sale Price$2,849.05
May Savings Event
SCT X4 or BDX New
Regular Price$399.00Sale Price$379.05
May Savings Event
P1 Underground Tuning RTD4
Regular Price$299.00Sale Price$284.05
May Savings Event
HP Tuners credits
Regular Price$49.99Sale Price$47.50
May Savings Event
PCMtec Multi-tune with OBDX Cable
Regular Price$1,499.99Sale Price$1,425.00
May Savings Event
PCMtec Multi-tune with AVID Device
Regular Price$1,799.99Sale Price$1,710.00
May Savings Event
PCMtec Multitune SCT X4
Regular Price$1,599.99Sale Price$1,520.00
May Savings Event
S650 HP Tuners Tuning Package
Regular Price$999.00Sale Price$949.05
May Savings Event
S650 SCT Tuning Package
Regular Price$899.00Sale Price$854.05
May Savings Event
HP Tuners Boosted Tune
Regular Price$600.00Sale Price$570.00
May Savings Event
HP Tuners NA tune
Regular Price$300.00Sale Price$285.00
May Savings Event
SCT Boosted Tune
Regular Price$600.00Sale Price$570.00
May Savings Event
P1 Underground Terrifier Tune (pops and bangs)
Regular Price$150.00Sale Price$142.50
May Savings Event
Cold Air Intake upgrade and Dial In
Regular Price$50.00Sale Price$47.50
May Savings Event
Fuel Injector Tune Upgrade for HP Tuners and SCT
Regular Price$50.00Sale Price$47.50
May Savings Event
Intake Manifold Upgrade for SCT or HP Tuners
Regular Price$50.00Sale Price$47.50
May Savings Event
SCT and HP Tuners Ghost Cam Add On
Regular Price$150.00Sale Price$142.50
May Savings Event
SCT and HP Tuners E-85 Add On
Regular Price$150.00Sale Price$142.50
May Savings Event
SCT 93r Custom Tune
Regular Price$300.00Sale Price$285.00
May Savings Event

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