When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
haha clearly you are getting people in different camps on this subject.
personally I agree with half the people here, its too loud at high speeds for cruising at 80 mph I'm not sure I could do it for more than an hour or two. I'm actually considering trading it in for a GTS Targa so I can just cruise for 6 hrs.
for people considering swapping a GT3 for another Porsche....you can add extra sound insulation to the GT3, by pulling up the carpet as you would for installing a road cage and adding sound insulation to replace what Porsche removed for the GT cars.
Thanks guys - this is very helpful. Sounds like it's borderline. This isn't my daily but I don't want to hesitate to reach for the keys and I don't want to just weekend car.
My .2 GT3 is fantastic on the highway and I love it. I'm still in break-in, but even so 7000 rpm will dispatch most anything if you want to 'get some space'.
Daily drive this car. .1 car with a .2 PDK-S. First one was a mixer.
The .2 PDK is much more quiet on the street and the highway. When it was brand new I was actually p!ssed off because it was so quiet. I love the grinder PDK with the rattle of coins in an empty beer can sound.
I also have the RSS center pipe. No complaints at all Daily driving her. I can tell everyone here the .2 PDK builds revs faster than the .1 box. I'm 100% certain the .2 PDK cars are a bit quicker than the .1's mostly because of the trans updates.
I've also noticed the MSC2's don't really get much louder with a lot of miles on them if they are wearing evenly. I'm a early 90's Ford Saleen Mustang/ E36 M3 generation guy college age then so maybe I'm just ok with using a GT car as a driver and I also have broken my back twice. I do have the 18ways though.
Well, 80 mph is one thing. I occasionally drive mine 500 km one way. Mostly german autobahn where there are no speed limits over extended distances, so I let it fly. When I get out of the car my ears are bleeding. It is very loud, but there is also something about the sound that hurts my ears. It is not a very pleasing sound for long periods of time.
Good man. I did 8,000 miles in my 2018 in January -- East Coast to West Coast and back. It is a great highway, miles eating car. Noise is very dependent on surface of the road. Smoth surface and the car is down right quiet. Rough surface -- a-la tarred gravel things, it can get a bit loud. Only place where I used earplugs for a few hours on the cross-country trek was on Texas back roads of tarred gravel kind. And I did all sorts of roads, including gravel: https://rennlist.com/forums/991-gt3-...some-pics.html
Edit: Oh, and I should add -- I was on winter tires, which add a bit to noise level.
Your trip was my inspiration to take a long 4000 mile trip Houston into the northern part of Vancouver Island Canada. We leave 6/29. I put the Sport Pilot 4s tires on and they are quieter than the Cup 2's. Looking forward to it.
Hey Guys - For those of that really drive your 991.2 GT3s how is it on the highway. I'm looking hard at a touring purchase. This won't be my daily driver but I do like to drive my "Toy" car to work a few days a week and that's 120 miles round trip mostly highway. I'm guessing highway cruising at 75-80mph is 3000-3500 RPM. How is it? Annoying?, No Issue ?
Thanks
Jeff
Compared to a 996 GT3 - wonderful.
It's very comfortable - but stiff ride. You can actually listen to music (either engine or radio) or hold a phone conversation in this car.
The 996 GT3, not so much.
There's the difference loud when heard from the outside vs. loud on the inside, and there's also the difference between loudness and vibrations that you feel in the ear drums and chest which many call drone. When I had straight x-pipes on a '06 Ford GT with no mufflers, the car had zero drone, however I didn't get there until I upgraded the supercharger to a 4.0L Whipple. My '14 Viper TA's exhaust isn't as loud as the Ford's but would drone between 2100 to 2500 RPM, so I had to drive in 5th at freeway speed to avoid the drone. In the RS, I find with the side muffler deletes, once over 3000 RPM (73 MPH in 7th), the sound smooths out so it is a matter of finding the right exhaust combination to avoid the resonant frequencies.
I'm currently experimenting with:
-Kilmat/Noico sound deadeners in back of the cars in various areas - rear deck, rear seat back, rear seat bottom, rear seat foot well, rear seat foot bottom, front seat bottom. door panels, etc.
-real delete w/ OEM muffler
-rear delete w/ center delete
-center delete only
-OEM RS ti muffler vs. OEM ss muffler
Here are the guinea pigs... Noico foam over Kilmat byule
Would love to be able to do both the side and rear delete and hopefully the insulation will help control the drone.
03-03-2019, 07:42 PM
