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A New Product->
Adjustable PCV Valve Stops Leaks
Air Conditioning Custom Kits->
Automotive and Marine Covers
Brakes->
Carburetor Modifications
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Chrome Accessories->
Chute Kits->
Clutches->
Cold Air Kits->
Custom Hoods->
Custom Parts Development->
Cylinder Head Porting->
Electric Cooling Fans->
Electronics and Delay Boxes->
Engine Blocks
Engine Parts->
Engine Swap Kits
Engines->
Exhaust Components->
Exterior Vehicle Components->
Fasteners->
Fire Equipment->
Floor Mats->
Fuel Injection Systems
Fuel System Components->
Gaskets->
Gauges->
Gear Venders Overdrive Units
Ignition Components->
Lift Kits->
Lowering Kits->
Nitrous Kits->
Race Car Bodies->
Race Wear and Accessories->
Radiators and Components->
Rear End->
  |_ Complete Rear End Assemblies->
    |_ Chassi Engineering Rear Ends
    |_ Competition Engineering Rear End
    |_ Currie Enterprises 9 Plus
    |_ Mark Williams Rear Ends
    |_ Moser Rear Assemblies
    |_ Strange Engineering Rear Ends
  |_ Complete Third Members
  |_ Custom Axles->
  |_ Posi Traction Units->
  |_ Rear End Covers->
  |_ Rear End Installation Kits->
  |_ Ring Gear Sets->
Roll Cages and Accessories->
Seats and Custom Interiors->
Shocks->
Spark Plugs->
Striker Viper heads Return
SuperChargers->
Suspension Components->
Tech Help
Throttle Bodies->
Tires->
Traction Components->
Transmission Components->
Tuning and Controllers->
Turbocharging->
Valvetrain Components->
Viper
Water Pumps->
Wheels->
Wideband Monitoring Systems->
Wiring harness and Accessories->

Customers

Robert M.

John, Thank you for all you have done, From your previous email responses, you seem to be old school, a man of his word. Thanks again John for...
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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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Jason B.

Thanks John.. you have been awesome to work with and I am REALLY looking forward to driving my SRT-10 again :) Jason
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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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Steven

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

Michael W.

After getting all the compatible stuff shes a beast! Michael
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Michael D.

I just wish there were more guys like you around for us gen3 guys. Most just want a sale and don't care to actually help let alone give advice or...
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Bruce P.

Bruce P.

You’ve got a big fan in me. Oh yeah, the car is awesome. Runs like a raped ape. So thanks a lot !
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David C.

Southeastern Performance has my vote. Thanks again!
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Phil S.

Phil S.

Great job creating this Dakota R/T Ground Affects Kit. Phil
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Pete L.

Pete L.

Mopar RB 440 Aluminum block with a Procharger. Makes 1600 HP!!
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Dan F.

Dan F.

John, The truck is not done but i drive it daily and it runs good now. Eventually id like to do the rear brakes! Thanks
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Robert S.

Robert S.

Great parts and service! Robert
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Brian R.

John!! Got my Viper back together, dyno tuned. Super happy with the results of your work!! Gained 112 RWHP and 107RWTQ!!!!! More at the crank. Sounds...
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Robert S.

Robert S.

426 Hemi Cuda
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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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Ricky H.

Ricky H.

Thanks for everything John. The headers are great !
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Craig W.

Craig W.

Thanks John, So far 8 races and 8 top Five!!
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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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Ian A.

Ian A.

I wanted to thank you for all your help and support, for being so patient and for being a good, honest person and especially so professional....
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Kris L.

John, Sitting in the car with a big smile on my face. Thanks for the quality brand products and the great price. Cheers Kris
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Ricky J.

Thanks for all the info, you have been a great help and a credit to your company.
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Matt G.

I just want to say thanks for all that you have done for me, because over the weekend I was the fastest R/T out there with no power-adders and still...
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Ricky R.

Ricky R.

1937 Chevy Legends Race Car, Thanks for everything!
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David A.

David A.

Thanks for everything, David
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9 Plus and Track 9 Custom Rear Ends

Nine Plus has been on the cutting edge of performance automotive rearend technology since it's inception. With the diminishing availability and problems trying to match rearend components, 9-Plus invested years of research and development to engineer the solution........the 9-Plus product line. The concept was simple. Redesign and build the best 9" parts on the market... make it affordable.....offer a comprehensive line of matched components.

9-Plus products are brand-new manufactured assemblies and components, not junk yard rebuilds. They are distinctively packaged so products can be easily identified and displayed. All 9 Plus components meet or exceed original O.E.M. specifications. They are made of superior materials, like cast-iron nodular housings....and are precision machined for exact fit.




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