On the 23rd of last month I put up a the most recent track video featuring our good friend Scott and his 350z. The car had received the new MotorDyne Shockwave single exhaust the day before the track event so here are the dyno results, videos, and my impressions.
I normally shy away from favoring any sort of single exhaust on the 350z but this may be the system that has changes my mind. From the moment it was unwrapped it was easy to notice that the quality was there, and then we came to the exhaust tip. MEGAPHONE!! Here at Z Car Garage we have a special place in our hearts for the megaphone tip, as they are currently installed on Rob’s 240z and 510 as well as Alvin’s Roadster. The MotorDyne system comes with one from the factory, sweet.
The exhaust was installed without hassle thanks to the simplicity of the included V-band clamps. As soon as the car fired up we were all impressed. Rasp was virtually non-existent (this car still runs stock cats) and the sound was extremely crisp. While it’s not overly-loud, and passed the decibel meter at Thunderhill, there may be a sound limit issue at some of the super-strict tracks like Laguna Seca.
On to the dyno!!
We made a few baseline runs just prior to the install and came out with a hair under 252 rear-wheel horsepower (rwhp.) After the exhaust switch we made two more runs while carefully monitoring all critical temps as well as the air/fuel ration with an Innovate wide-band 02 sensor. The number we came out with was sort of a let down: 251rwhp, a one hp loss. Before simply marking it up as a loss we pulled out the laptop to check the timing in the U-tech piggyback computer. After pulling a couple degrees of timing we were happy to see the number climb to 259rwhp, a very nice gain for a normally aspirated car.
Unfortunately this isn’t a true comparison because we can’t be sure of how the NISMO system would have performed with the reduced timing, on the sound alone I would recommend this exhaust. Make sure you check out all the videos and photos after the ‘read more.’