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Adjustable PCV Valve Stops Leaks
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Fuel Injection Systems
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Gear Venders Overdrive Units
Ignition Components->
Lift Kits->
Lowering Kits->
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Race Car Bodies->
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Striker Viper heads Return
SuperChargers->
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Tech Help
Throttle Bodies->
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Tuning and Controllers->
  |_ AEM Tuning
  |_ Bully Dog Diesel Performance
  |_ DiabloSport Tuning
  |_ Edge Performance Programmers
  |_ FAST EZ EFI 2.0 Tuning
  |_ FAST Flash Power Programmers
  |_ FAST XFI Tuning Systems
  |_ Greddy E-Manage
  |_ Greddy Profec Boost Controller
  |_ Holley Dominator EFI Tuning
  |_ Holley Range Gen 111 Hemi
  |_ Holley Sniper EFI Kit
  |_ Holley Terminator X
  |_ Hypertech Programmers
  |_ Jet Performance
  |_ ProEFI Standalone Tuning
  |_ Superchips Flashpaq Tuners
  |_ Unichip Tuning
Turbocharging->
Valvetrain Components->
Viper
Water Pumps->
Wheels->
Wideband Monitoring Systems->
Wiring harness and Accessories->

Customers

Bill S.

Bill S.

Thanks John, 426 Hemi stroker 588 https://www.youtube.com/watch?v=1dJdt0ZFzjU
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Don S.

John, I can't emphasize this enough, but without the help you're getting me I could not have afforded my dream engine! I literally have cringed when...
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Ricky R.

Ricky R.

1937 Chevy Legends Race Car, Thanks for everything!
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Alexander F.

Alexander F.

Hey John! Roller Rockers are still in and have been great. I get almost 18mpg highway! I seriously appreciate all your help.
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Brian C.

Brian C.

I have never had any problems with John on any transaction. One of the few vendors I have never had a single problem with. Including paying overnight...
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Derek B.

Derek B.

Great Personalized service. Derek
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Mike M.

John's very honest, something that's hard to find these days. This means he'll tell you the truth and you may not want to hear it. LOL. The best...
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David P.

David P.

Thanks for the brake lines !
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Ricky H.

Ricky H.

Thanks for everything John. The headers are great !
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Alan P.

First off, I just have to say that I have never came across a more stand-up guy that takes his time to connect with his customers and have the...
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Bob F.

Bob F.

Plymouth 426 Hemi
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Daryl S.

Your 408 runs like a dream. I think we are well over the 400hp side, a new 300hp mustang could not overcome, it is a beast. I am very happy with the...
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Andrew R.

Andrew R.

I am very pleased with the quality of the magnum deep pan, and the best part is that it really is not much deeper than the stock pan so I dont have...
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Robert S.

Robert S.

Great parts and service! Robert
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Brian A.

Brian A.

The 408 engine runs strong, put on dyno 405hp with 415tq N/A not shabby.. also was on 22" wheels with those numbers est. 500-525 @ crank. Thanks so...
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Steven

Southeast Performance and John Mercedes have been "OUTSTANDING" to do business with. I couldn't be happier.
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Ken L.

John, Thanks for all your help. I wish I had known about you before I ordered the rest of my stuff! Thanks, Ken
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David C.

Southeastern Performance has my vote. Thanks again!
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Robbie C.

Robbie C.

Great job all round !
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Kayden G.

Kayden G.

Well your service is amazing. Never had better from any company I've ordered from! Kayden
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Ryan

bought numerous things and all transactions went very smooth. Responded to emails within a day or less. Ryan
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Rob D.

John is a real awesome guy. i couldn't thank u enough for all the help over 7-8 years.
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James G.

James G.

5.80 in 1/4 mile @ 244 mph & 3.76 @ 197 in the 1/8 mile
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Matt C.

Thanks again John, someone who’s willing to help and not just sell parts. So, looks like you’ll be listed on my referrals. Keep in touch. Thanks...
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William K.

William K.

Well your service is amazing if you want my opinion. Never had better from any company I've ordered from. William K.
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Holley Terminator X Max Gen 111 Hemi

Terminator X and X Max Features and Benefits: Plug and play GEN III HEMI engine control for 2003-2013+ such as the 5.7L, 6.1L and 6.4L engines Plug and Play compatible with Holley EFI accessories – Analog gauges, shift lights, modules, and both 6.86” and 12.3” Pro Dash EV1 or EV6 injector harness included (depending on your injector configuration) High Impedance Injector drivers power Holley EFI and most stock injectors -Injector support chart found in instructions (will not support low impedance injectors) Included Bosch LSU 4.9 wideband O2 sensors for accurate readings and precise tuning control Built in 1bar MAP (manifold absolute pressure) sensor included - For Boosted applications – internal MAP sensor can be disabled and utilize external MAP sensor harness (kit includes a terminated connector for seamless installation) Vacuum hose adapters included - (1/8”, ¼”, and 3/16” sizes) 4 inputs – 12v, Ground, 5v, and frequency for items like pressure sensors, activation triggers, nitrous activation, or trans brake Boost Control – boost vs. time, boost vs. gear, boost vs. RPM, boost vs. speed, and boost safeties Nitrous Control – channels for wet or dry, progressive or non-progressive, rich/lean safeties, and target closed loop AFR (Air/Fuel Ratio) Advanced Tables – ( 4x 1D tables, 1x 1D gear table, 4x 2D table, and 1x 2D gear tables) for nearly unlimited table configuration options On-board diagnostic LEDS - ECU power, engine run, TPS calibration, cam signal, and more! Identify critical engine parameters at a glance 3.5” touchscreen handheld included - Internal data-logging, custom gauge display, and calibration wizard allow quick building bases tunes for any Domestic V8 engine Compact ECU (Engine Control Unit) – At only 7.45” x 4.1” x 1.66” the compact packaging allows mounting virtually anywhere (XMAX ECU = 9.6” x 4.1” x 1.66”). REMINDER: diagnostic LED’s must face up! FREE EFI Tuning software – For compete control of your Terminator X power plant Diagnostic LED's 8 Built-in multi-color diagnostic LED's allow you to quickly identify a variety of potential system issues, such as a failed TPS Autoset - faulty crank or cam sensors, or potential oxygen sensor issues! 1. ECU Power - Green = ON 2. Engine Running - Green = Running - Yellow = No RPM 3. Wideband Status - Blue = Too Hot, Too Cold, Slow Warmup, or Uncalibrated, Green = OK!, Red = Sensor Failure, Yellow = Sensor Heating, Off = Sensor Disabled. 4. TPS Calibration - Green - Calibrated, Red = Calibration Error, Cyan = DBW Pedal Calibration Error, Purple = DBW TB Calibration Error. 5. Undefined - Future Use! 6. Crank Signal - Green = Tooth Detected, below crank to run RPM (400RPM), Blue = Gap Detected, below crank to run RPM (400RPM), Red = Crank Error Detected, Off - Synced Properly. 7. Cam Signal - Green = Tooth Detected, below crank to run RPM (400RPM), Blue = Gap Detected, below crank to run RPM (400RPM), Red = Cam Error Detected, Off - Synced Properly. 8. Undefined - Future Use! Troubleshooting at a Glance! Terminator X ECU Connections J1A - Main Harness Connector - This connector is primarily an “Input” connector. It contains all the sensor inputs and wide band oxygen sensor control. J1B - Main Harness Connector - The second connector is the “J1B” connector (26 pin). This connector is the “output” connector. It has 8 injector outputs and outputs for other devices. MAP Sensor - used on N/A applications, connect directly to left manifold vacuum port on the intake manifold. Main Power - Connects to the Main Power Harness, these two wires MUST be wired directly to the Battery Terminals. We are Holley distributers, contact Southeast Performance for details and pricing.




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