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Customers

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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Toby W.

John, Thanks again so much. You're truly awesome.
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David A.

David A.

Thanks for everything, David
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Jim A.

Jim A.

Two year champion in modified tractor pulling classes named "Watch This Trick". Chrysler 426 Hemi. Thanks for the Great Service!
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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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Dan B.

Dan B.

Dakota R/T 408, Thanks for everything! Dan https://www.youtube.com/watch?v=wZekmXKYXA4
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Colton H.

Colton H.

"Johns the man, bought a 410 package from him years ago after I got back from overseas. The caveat I gave John was that it had to pass Californian...
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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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James G.

James G.

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

Awesome work! Glad I went with you guys! Anyone I know of that wants to build I'll send your way! Thanks John! Your the man!! Mitch
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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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Robert S.

Robert S.

426 Hemi Cuda
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Benny C.

Benny C.

Thanks for the Great Mopar Service !
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Michael W.

Michael W.

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

Kyle M.

John, I am very pleased with the brake conversion. The kit was very easy to install and I didn't have any problems and look very good as...
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Clay B.

Clay B.

Thanks for everything !
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Darren B.

Darren B.

John,Racing flat out on the 440/533 engine over 1 season & 65 passes at 8.97@150mph 1.27 60' getting great results!!Engine is GREAT!Thanks mate!
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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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Troy K.

Troy K.

Dodge Viper
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Harold R.

John, Thanks for the great customer service! Harold
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Gary H.

Gary H.

John, Thanks a lot !
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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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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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Steve B.

Steve B.

Thanks for the help with my 426 stroker.
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Jared B.

John, You Rock! Thanks again for the great deals and speedy service. Really appreciate it. Jared Dakota R/T
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Gen III Viper Upgrade Kit

Enthusiasts looking to extract up to 150 more horsepower from their Gen III Dodge Viper can now bolt on a Performance Upgrade Kit to their stock V-10 engine.

Each kit includes a pair of aluminum cylinder heads (machined to fit the Gen III block), a custom upper intake manifold, fuel rails and injectors and injector pigtail wiring. The stock engine controller will have to be re-flashed.

All necessary hardware and gaskets are included.

With the Performance Upgrade Kit, owners will see up to 650 horsepower from their existing engine while still maintaining excellent low-end drivability. Package is available for 2004- 2006 MY Viper and SRT-10 RAM.


Contact Southeast Performance for details and pricing



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