Porsche 991.2 GT3 R (GT3 Class) w/ Unmuffled Exhaust: Pure 4.0 N/A Flat-6 Sound!

I think I've never explicitly said it but unconsciously there has always been a small desire to be able to hear one of the GT3-class Porsches with a fully unmuffled exhaust. The opportunity happened last weekend at Mugello Circuit during the 2021 12h of Mugello race organized by Creventic as the first of two Italian rounds of their 24h Series. Typically the upgraded 991 Mk2 (991.2) version of the "R" comes with a visible muffler on the rear of the car, but despite that it still manages to be one of the most melodic sounding cars in the GT3 class and it's also loud enough for my liking.

But thanks to Herberth Motorsport team, one of their 991.2 GT3s was fitted with that straight exhaust during the whole racing weekend. And it sounds ridiculous compared to the already loud standard R's. Of course in this form the 4.0-litre naturally-aspirated flat-6 engine could only have echoes of the beloved GTE-class 991 RSR 2017. But even if sometimes tones and notes are exactly the same, the RSR still keeps the ''loudest race car'' trophy among them.

Two little things I need to explain to avoid some 'wtf moments', kinda of:

1) The Herberth's Porsches featuring the unmuffled exhaust is always just one on track, but there are two different ones in this video (in particular starting from the second half, when the 'Pit In / Pit Exit' chapter starts at around 8 minutes mark). Herberth Motorsport fielded two 991 GT3s, number 91 with red LED running lights and number 92 with yellow LEDs. During the official part of the event (Friday's free practices, qualifying and Saturday's race) number 91 was fitted with the straight piped exhaust while 92 with the 'OEM' muffled one, as you can see from the very beginning of the video. But in the second half of the video you can also see clips of the 92 with the unmuffled exhaust. That's because during Thursday's unofficial tests Herberth Motorsport mounted this exhaust on the 92 for the morning part of the tests. I managed to get some good clean scenes so it seemed logical to me to use them.

2) Why the cold start up on the grid an not in the garage before the outlap. I've only attended just two of Creventic's racing weekends and both were at Mugello (2019 and 2021) and in the exact same period of the year (late March), but I saw from their live streams that sometimes the format of other championship's rounds is the same. Basically the 12 hours competition is divided into two parts: a first 4 hours on Friday and the remaining 8 on Saturday.
At the end of the first part, cars are parked in order of classifications on the grid (in this way split times of competitors in the same lap are 'technically' deleted but lapped cars remains lapped of the same number of laps when the first part of the race ended). The grid becomes a sort of closed park and the cars remain there for the night. 45 minutes before the start of the second part, the 'closed park' status ends and mechanics can go to their cars to do a very limited number of things such as warming up the engine, cleaning the windshield and check if there aren't any dangerous moving parts or broken pieces.

Such a shame I didn't manage to do do many of my typical endless sound scenes since track was really packed therefore other cars often arrived in the clip when I was still trying to record the GT3 R echoing in the distance. But as you can hear, the car was the loudest on track. Hope you like it!

0:00 Cold Start Up with Muffler
0:14 Cold Start Up without Muffler
0:25 Idling Warm Up
1:34 Start From The Pits + Pit Exit
2:09 In Action on Track pt.1
7:48 Pit In / Pit Exit
8:47 In Action on Track pt. 2

#Porsche991GT3R #PorscheGT3R #991GT3R
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I have to thank my friends and youtubers ‪@Italiansupercarvideo‬ and ‪@MattyB727‬ for the great collaboration done during this event. Don't forget to subscribe to their channels!!

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- Camcorder: Canon Legria HF G30 & GX10 + Canon DM-100 Microphone, Sony AX-53 + Audio Technica Microphone
- Event: 24h Series by Creventic - 12h Mugello 2021
- Where: Mugello Circuit, Italy

Link To My Channel:    / 19bozzy92  

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