We had the opportunity to test out the new ART test pipes from Motordyne Engineering this past week.  The pipes are very interesting looking.  Based on the Helmholtz resonator design, one can theoretically have a quieter “open” exhaust system.  Our customer brought in his 2007 G35 for before and after dyno results.  I was a bit skeptical looking at them but after it was said and done I was pleasantly surprised!

The G already had on it aftermarket HFC (300 Cell) pipes in it so the gains to be had over stock are even higher.  NO OTHER changes were made, just the pipes.  We hopped in the car after the install and the customer confirmed they were as quiet sounding as the HFCs we pulled off!

The Dyno doesn’t lie, and in this case we confirmed additional power and torque to be had.  We saw consistent gains of 8-10 whp across the board and peak gain of a little over 8 whp.  A\F was pretty consistent between the two runs as well.  One thing to note is that the auto trans hard lines are real close to the resonator and will require some tweaking to get proper clearance.

Two thumbs up to Tony over at Motordyne!

Click on images for full view.