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Independent Tests

Comparative Testing of Stock 5.9L Cummins vs. Speed of Air Modified Pistons

Newmont Gold Report on CAT 3516

Independent Test Results of CAT3516 TALE CNG Engine

SEMA Certification Report for LML Duramax

Direct Injection Gas Test by Fisher Motorworks

2.0L TDI Independent Dyno Testing

Real People, Real Results

6.0L Powerstroke

6.7L Cummins

2001 RAM 2500

2006 GMC 3500

2008 RAM 3500

2010 F550

2014 6.7L Powerstroke

Dodge RAM 2500

LLY Duramax

IMCA Race Car

Super Pro ET Dragster

For General Inquiries

For questions about Duramax, Power Stroke and Dodge Cummins Hyperformance piston kits only, contact us at: Sales@speedofair.com, Tech@speedofair.com

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