Maximum Performance - Dyno Tuning & EFI Tuning Specialists


American Iron ONLY


Dyno Services







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Detailed Discussion


Simple Discussion



Active Fuel Management got you down? 

We can put YOU in control of your engine, the way it should be.  Once we correct the Active Fuel Management system and apply a performance tune, you won't believe the improvement in drivability.  It's a difference you will feel immediately.  For about what it would cost you for a hand-held programmer we can maximize your performance.  The hand-helds don't address more than a fraction of what it takes to get the job done correctly. 



Considering some performance add-ons?

See us before you install the equipment.  The best approach is to get baseline dyno measurements BEFORE you begin any modifications.  That way you can see any improvements, resulting from your work, with subsequent dyno pulls.








We've moved!




60 Buttonwood St Unit 5

Bristol RI 02809-3642


Our new phone number




NOW offering Indoor Heated Winter Storage for automobiles and motorcycles. 

(Click here for details)



Maximum Performance is Southern New England's premier high performance tuning provider. We are an authorized distributor of F.A.S.T. Engine Management Systems. Complete systems, components and custom installations with tuning are available. Tuning is performed on a Mustang® 1750-DE chassis dynamometer. This system can support up to 1750hp and 220mph testing.


TCI® Transmission Control Systems are also offered.  Installation and tuning on our chassis dynamometer are available . An on-site transmission dynamometer is used to tune out-of-chassis units.


High performance transmissions, assembled and dyno tested, are available in standard packages to 2000hp. Also, custom transmissions can be provided to our customers' specifications. 




Must See!  View video of 10 second 1/4 mile run on the dyno.


Pat Smith launching at New England Dragway.  Click to view his quarter mile run on the dyno.




Attention, manufacturers, developers, and professional racers.  Maximum Performance offers a single, confidential site for your testing and development needs.  We are a full service performance shop. The following on-site services are offered,

  • State of the art chassis dynamometer.
  • Transmission dynamometer
  • Full machine shop facilities.
  • Engine removal, installation, and assembly facilities.
  • Transmission removal and rebuild facilities.
  • Tools and equipment to support most high performance automotive procedures.

The facility is offered to qualified parties.  Confidentiality is assured.  Technical support staff is also available to assist in any way.  Please call with your specific needs.

Specializing in EFI tuning, sales and installation. Custom chips and computer re-flashing are performed on site with tuning on the dyno for guaranteed satisfaction. Turbocharger, Supercharger, nitrous, and other power adders installed and tuned. Special services are available for manufacturers, developers, and professional racers. Located in Rhode Island, convenient to Massachusetts, Connecticut , New Hampshire, Vermont, Maine, New Jersey And New York. Fuel injection or carbureted, Ford, Chevy, Chrysler, or foreign, we tune them all. So bring your Camaro, Corvette, Cobalt, Mustang, Cobra, Charger, Magnum, Z28, C4, C5, C6, LT1, LS1, LS2, LS3, LS4, LS6, LS7, LS9, LSA, LSX, L92, L98, L99, ZZ4, ZZ383, ZZ502, ZZ572, 302, 305, 351, 460, 360, 402, 426, 472, 500, 528, SBC, BBC, Cleveland, Windsor, Wedge, or Hemi.



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