Tunnel Blasting and Decibel Readings - 2015 Jaguar F-Type R Coupe Long-Term Road Test

2015 Jaguar F-Type R Coupe Long-Term Road Test

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2015 Jaguar F-Type R Coupe: Tunnel Blasting and Decibel Readings

March 17, 2015

2015 Jaguar F-Type R Coupe

It may frighten small children and annoy my neighbors, but for me, our long-term 2015 Jaguar F-Type R Coupe produces one of the best exhaust notes of any car currently on sale. And, as I've done with other long-term cars in the past, I decided to test how loud the Jag was inside a tunnel at wide-open throttle.

For science, I swear.

I had a baseline with our official track-test numbers of how loud the F-Type was at the track, so I compared it with a few other sports cars and a couple of the quietest cars in our long-term fleet. The following numbers are all from our official instrumented testing.

dB @ Idle

dB @ "Full Throttle"

dB @ 70 mph

2015 F-Type R Coupe




2015 F-Type S Coupe (V6)




2015 Corvette Z06




2014 Porsche 911 Turbo S




2015 Kia K900




2014 Ram 1500 EcoDiesel





Surprisingly, the F-Type R Coupe was not the loudest of the bunch. Even more surprising, during the full-throttle test, the less-powerful V6 S version of the F-Type registered 4 decibels louder than our long-term coupe with the supercharged V8.

Chevy's newest 650-horsepower Z06 decimates them both though, with nearly 95 dB inside the car, with the windows rolled up and the pedal to the metal. You can credit some of that noise to a difference in insulation, but not much since the F-Type R and Z06 get nearly identical ratings at 70 mph.

Since my nifty iPhone decibel-meter app proved inadequate in the past (it couldn't measure above 100 dB), I broke out the Edmunds testing equipment and headed for the mountains. In the tunnel with the windows down, things get quite a bit louder. With the F-Type R Coupe's exhaust reverberating off the walls, the meter registered 101.4 decibels. I've been to concerts that weren't that loud. Of course, that's just a short burst of speed in a short tunnel, not the kind of prolonged exposure that causes hearing damage.

If you ask me, the F-Type is the right kind of loud though. There's some road noise on the highway and it's not exactly silent at idle, but turn on the stereo and you'll drown out any unwanted commotion. And if your friends say stupid things like, "It sounds broken," or "That's annoying. Why would you do that on purpose?" it's time to get new friends.

Travis Langness, Associate Editor @ 16,689 miles

2015 Jaguar F-TYPE

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