IMG_0723

Let Your Ponies Be Heard – Exhaust Component R&D, Part 6: Test Results

In our last post, we took a look at the axleback fabrication process. Now that our prototypes are on the GT and ready to rock, it is on to testing! While we were not expecting much in the power department out of these exhaust options, we still wanted to see how they sound on the dyno.

Mishimoto’s Mustang GT Exhaust – Race Axleback
Mishimoto’s Mustang GT Exhaust – Race Axleback
Mishimoto’s Mustang Axleback Exhaust – Race version
Mishimoto’s Mustang Axleback Exhaust – Race version
Mishimoto’s Mustang GT Exhaust with polished tips
Mishimoto’s Mustang GT Exhaust with polished tips
Mishimoto’s Mustang GT Exhaust – Pro Axleback
Mishimoto’s Mustang GT Exhaust – Pro Axleback
Mishimoto’s Mustang Axleback Exhaust – Pro version
Mishimoto’s Mustang Axleback Exhaust – Pro version
Mishimoto’s Mustang GT Exhaust – Street Axleback
Mishimoto’s Mustang GT Exhaust – Street Axleback
Mishimoto’s Mustang Axleback Exhaust – Street Version
Mishimoto’s Mustang Axleback Exhaust – Street Version

Testing

In addition to sound testing, we will test each of our axleback options on the dyno to determine if one offers any benefit over another. This will help us to decide which option to proceed with. After making a few passes with a stock GT to determine a baseline, we ran each of our axleback options (large mufflers, small mufflers, and straight pipes) on the dyno. We first ran each option with the stock resonator and then with our Mishimoto X-pipe. We chose to use only the X-pipe because in our previous post we tested both the H-pipe and X-pipe and discovered that there were no differences in power between the two components. Alright, enough talk, more dyno!

Results

            As expected, we saw no gains in power for any of our exhaust options when compared to stock. Still, we certainly noticed a sound difference between the three axleback options, so we have decided to release all three to pre-sale.

Mustang GT Axleback dyno testing results
Mustang GT Axleback dyno testing results

Of course we had to name our creations according to the sounds that they produce. The softest-sounding axleback equipped with the large mufflers will be referred to as the Street Axleback. This is the option for those who want some sound out of their exhaust, but also have neighbors.

Mishimoto’s Mustang GT Exhaust – Street Axleback
Mishimoto’s Mustang GT Exhaust – Street Axleback

The mid-range exhaust with the small mufflers will be called the Pro Axleback. This exhaust is perfect for anyone who wants some serious sound out of their GT.

Mishimoto’s Mustang Axleback Exhaust – Pro version
Mishimoto’s Mustang Axleback Exhaust – Pro version

The final, and most ear-shattering option, is the straight-pipe which we dubbed the Race Axleback. When this option is paired with the X-pipe the volume is extremely loud and therefore meant for extreme locations, such as the track.

Mishimoto’s Mustang GT Exhaust –Race Axleback
Mishimoto’s Mustang GT Exhaust –Race Axleback

Refer to the chart below where we rank each exhaust combination by the sound level.

Sound level diagram for the Mustang GT Exhaust
Sound level diagram for the Mustang GT Exhaust

Coming Up!

Now that testing and naming are complete, we can release these exhausts to the wild. The pre-sale is going on now so take advantage of the lower intro price of these exhaust components before they are officially released. Let us know if you have any questions about our plethora of exhaust options!

Thanks for reading!

-Sara

2 thoughts on “Let Your Ponies Be Heard – Exhaust Component R&D, Part 6: Test Results”

  1. This is interesting and appreciated! I have an X-pipe and the Roush axle-back which while they don’t officially claim a performance increase, it’s to be assumed given past vehicles and exhaust modifications. I’ll be excited to hear whether or not there is any drone with the race series you offer. If there is minimal drone I would be interested in buying a set or at least trying them out. The Roush while nice, sound like a trumpet at times which I find disconcerting.

Leave a Reply

Your email address will not be published. Required fields are marked *