HP Tuners provides engine and transmission tuning tools that let owners customize performance, fuel economy, and diagnostics.

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HP Tuners PROLINK+ Cable For MPVI2+ And MPVI3 - H021-002-06 HP Tuners PROLINK+ Cable For MPVI2+ And MPVI3 - H021-002-06
HP Tuners PROLINK+ Cable For MPVI2+ And MPVI3 - H021-002-06
HP Tuners Art: GQTN-H021-002-06
$79.99 --60% $49.99
$79.99
HP Tuners Air Fuel Ratio Gauge - 60005 HP Tuners Air Fuel Ratio Gauge - 60005
HP Tuners Air Fuel Ratio Gauge - 60005
HP Tuners Art: GQTN-60005
$235.00 -0% $235.00
$235.00
HP Tuner - Data Acquisition Module
HP Tuner - Data Acquisition Module
HP Tuners Art: GQTN-9001
$8.99 -0% $8.99
$8.99
HP Tuners Data Acquisition - 9002 HP Tuners Data Acquisition - 9002
HP Tuners Data Acquisition - 9002
HP Tuners Art: GQTN-9002
$39.95 -0% $39.95
$39.95
HP Tuners CORE ECU Standalone Engine Management - COR-ECU-000
HP Tuners CORE ECU Standalone Engine Management - COR-ECU-000
HP Tuners Art: GQTN-COR-ECU-000
$1,999.99 -0% $1,999.99
$1,999.99
HP Tuners Terminated Gen3 Drive-By-Cable LSX CORE ECU Harness - COR-HAR-001
HP Tuners Terminated Gen3 Drive-By-Cable LSX CORE ECU Harness - COR-HAR-001
HP Tuners Art: GQTN-COR-HAR-001
$949.99 -0% $949.99
$949.99
HP Tuners Terminated Gen4 Drive-By-Wire LSX CORE ECU Harness - COR-HAR-002
HP Tuners Terminated Gen4 Drive-By-Wire LSX CORE ECU Harness - COR-HAR-002
HP Tuners Art: GQTN-COR-HAR-002
$949.99 -0% $949.99
$949.99
HP Tuners Unterminated 15' Flying Lead CORE ECU Harness - COR-HAR-003
HP Tuners Unterminated 15' Flying Lead CORE ECU Harness - COR-HAR-003
HP Tuners Art: GQTN-COR-HAR-003
$549.99 -0% $549.99
$549.99
HP Tuners Additional 4L60/4L80 Transmission Control Harness For CORE ECU - COR-HAR-004
HP Tuners Additional 4L60/4L80 Transmission Control Harness For CORE ECU - COR-HAR-004
HP Tuners Art: GQTN-COR-HAR-004
$259.99 -0% $259.99
$259.99
HP Tuners Additional I/O Harness For CORE ECU (for Non-computer-controlled Transmission) - COR-HAR-005
HP Tuners Additional I/O Harness For CORE ECU (for Non-computer-controlled Transmission) - COR-HAR-005
HP Tuners Art: GQTN-COR-HAR-005
$159.99 -0% $159.99
$159.99
HP Tuners GM E46 ECM Send-in Upgrade Service - ECM-00-E46-U
HP Tuners GM E46 ECM Send-in Upgrade Service - ECM-00-E46-U
HP Tuners Art: GQTN-ECM-00-E46-U
$399.99 -0% $399.99
$399.99
HP Tuners New Upgraded GM E93 ECM - ECM-00-E93-P
HP Tuners New Upgraded GM E93 ECM - ECM-00-E93-P
HP Tuners Art: GQTN-ECM-00-E93-P
$699.99 -0% $699.99
$699.99