DYNO TESTING

Chevrolet Cavalier Z24 / Pontiac Sunfire GT Iperformance Header Dyno Tests
TEN PEAK HORSEPOWER FROM JUST A HEADER!

We have read the magazines and the many dyno tested performance buildup articles, and have seen the pattern that ten to twelve horsepower is what can be realistically expected from a combination of intake, cat back exhaust, and header, and always spotty power improvement. We never expected one of our own customers to tell us how much we were underestimating the performance of our own products, and provide dyno charts to prove it.


Elias Fernandez took it upon himself to test our Iperformance Header for the 1996-2002 Chevrolet Cavalier Z24 and Pontiac Sunfire on his 1996 Pontiac Sunfire GT with four speed automatic transmission.

Elias paid for the Dynojet Dynomometer testing himself, out of his own pocket, and was so excited with the results, that he telephoned us the Saturday morning of April 28, 2001, just after he completed the testing, to tell us how excited he was with the fitment and performance of our header. He commented that the header made significant and very noticeable power increase across the entire power band. He added that his mechanic had stated that he had never seen such a large increase in power in bolting on just a header in any other four cylinder car he had worked on.


Elias' 1996 Pontiac Sunfire GT Dyno Results with Stock Manifold
and Down Pipe

Click on The Charts to See a Larger Image...

Elias' 1996 Pontiac Sunfire GT Dyno Results with Iperformance Header

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Once we received copies of the before and after dyno charts from Elias, we fully understood his excitement, as the charts clearly show a increase of more than ten horsepower and a more than ten ft-lb, and increase in power across the entire RPM range of the engine measured at the drive wheels with the addition of only the Iperformance. None of the spotty power increases were seen on the results (as were seen in the many magazine dyno writeups of other products), and the results more resembled the before and after charts of a supercharger install than of a header install on a naturally aspirated four cylinder engine.
 

Composite of Before and After Dyno Results from Elias' 1996 Pontiac Sunfire GT

Click on The Charts to See a Larger Image...

What more can we really say, our customer has proven to us that the it is possible to get more than ten horsepower from just a header, our Iperformance header, in fact our product posted peak gains of eleven horsepower from 4,800-5,000 RPM and eleven or more horsepower from 5,800-6,300 RPM, and twelve horsepower at 6,000-6,100 RPM and again at 6,300 RPM, not to mention a peak gain of 17 ft-lb of torque at 6,200-6,300 RPM. No manufacturer could possibly have more independently obtained or more unbiased testing of their product as to have a customer pay for the testing and report the results back to that manufacturer, and we are confident we can now say that there is no better performing header for 1996-2002 Chevrolet Cavalier Z24 or Pontiac Sunfire GT from any other manufacturer.
Elias informed us that he is more than happy to answer questions about his car and the testing and can be contacted at:

Elias Fernandez
Hampton, VA 23666
EMAIL: fernelias@hotmail.com
The two Dynojet Chassis Dyno facilities Elias used for his testing were:

Precision Dyno Service
Woodlawn Ave.
N Belmont in Gastonia, NC
TEL: (704) 827-3944

Abacus Racing
1372 Baker Road
Virginia Beach, VA 23455
TEL: (757) 363-8878