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Adjustable PCV Valve Stops Leaks
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Electronics and Delay Boxes->
Engine Blocks
Engine Parts->
Engine Swap Kits
Engines->
Exhaust Components->
  |_ Cat Back Exhaust Systems->
    |_ Apexi Exhaust Systems
    |_ Bassani Cat Backs
    |_ Blitz Exhaust Systems
    |_ Borla Cat Backs
    |_ Chikara Cat Backs
    |_ DynoMax Cat Backs
    |_ Edelbrock Cat Backs
    |_ Flowmaster Cat Backs
    |_ Flowtech Cat Backs
    |_ Ford Racing Cat Backs
    |_ Gibson Cat Backs
    |_ Greddy Exhaust Systems
    |_ Hedman Cat Backs
    |_ HKS Exhaust Systems
    |_ Hooker Cat Backs
    |_ Mac Cat Backs
    |_ Magnaflow Cat Backs
    |_ Mopar Cat backs
    |_ Pacesetter Cat Backs
    |_ Perrin Exhausts System
    |_ Preditor Cat Backs
    |_ Rousch Cat Backs
    |_ Supertrapp Cat backs
    |_ Tanabe Cat Backs
    |_ TFX Cat Backs
    |_ Thunder Muff Cat Backs
  |_ Exhaust Components->
  |_ Exhaust Cut Outs->
  |_ Exhaust Headers->
  |_ Mufflers->
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->
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

Steve B.

Steve B.

Thanks for the help with my 426 stroker.
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Barbara H.

John, Thanks again for making Colton's dream come true! The truck is in the body shop, the cowl hood arrived and the new 408 engine you built is...
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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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Clay B.

Clay B.

Thanks for everything !
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Phil S.

Phil S.

Great job creating this Dakota R/T Ground Affects Kit. Phil
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Robert S.

Robert S.

426 Hemi Cuda
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Bob F.

Bob F.

Plymouth 426 Hemi
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Chris B.

Chris B. won the late model feature easily Texas Motor Speedway.
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Hannu O.

Hannu O.

thank you very much from Finland!
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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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Bill S.

Bill S.

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

John, Thanks again so much. You're truly awesome.
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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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Troy K.

Troy K.

Thanks for all your great help with my Viper.
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Buyer

Super guy to deal with! GREAT SERVICE!! GREAT PRICE!!
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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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Carl E.

Carl E.

Dodge SRT-10 Viper
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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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Marko T.

Marko T.

Hi John! Thanks again for the great service! Marko T. Finland
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Doug B.

Doug B.

My experience with Southeast Performance and John has been amazing. My Viper has gained another 200hp and drives fabulous. Thanks for everything!
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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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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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Mac Cat Backs

Mac Performance is dedicated to building products that meet strict quality standards. We follow exacting guidelines during manufacturing in order to insure that you receive a quality, reliable product every time. We maintain a strong committment to customer service. We promise to do everything in our power to insure that your experience with Mac Performance meets or exceeds your expectations.

The first automotive production piece we made was the equal length header for the 5.0 Mustang. It was an industry first and is still frequently copied today because of its superior design and function. Next was the off road h-pipe for the 5.0 Mustang, the long tube header, and many other parts mostly for Ford vehicles. Eventually the product line expanded to Chevrolet, Dodge and Import cars. MAC Products now produces over 1200 parts for cars and motorcycles and the list is still growing.

True Fit design (ball and socket fitting) eliminates the need for gaskets, muffler clamps and welding. The system is made from 16ga aluminized tubing. All tips are chrome plated.

All MAC 3" systems fit to stock catalytic or any MAC off-road H-pipe or Pro Chamber.




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