The Dundon exhaust is completely welded together, unlike the OEM titanium exhaust, which is pressed together. On track driven GT3RS’s the factory titanium exhaust often has baffles come loose and gets really loud when track driven. The Dundon exhaust is made of really thin-wall titanium, so it gets a bit ripply looking during welding.
All the baffles are Tig welded in place to the outside of the shell.
Comparing our new Titanium part to our old 321 stainless part, the only difference is that the Ti part has integrated exhaust tips and weighs about 1/3 as much.
This odd stain was on our new muffler.
10 comments
I honestly wonder about the benefits of a carbon roof in the CA sunshine. It can get so hot that the epoxy returns to the plastic phase and you get delamination. Fortunately, it’s not a structural part so you don’t have to worry about catastrophic failure, but it’s definitely not something I would ever want to pay a premium for.
It looks cool.
Great technical explanation.
You could have mentioned something about moment of inertia and the distance from the CoG location, but you went with the dumbest excuse available.
Within the Porsche world, “it looks cool” is the correct answer. The vast majority Porsche of buyers give a rats ass about any weight savings of the roof which is only about 4 pounds; they get the CF roof because it looks cool. Did you know you can buy an optional carbon fiber owners manual wallet for $810? The door sill guards in carbon fiber and illuminated are a $1250 option. It’s a different mindset.
Khiem, on the RS it’s only one pound difference. This is because the RS comes with a magnesium roof.
Can you really get a carbon owners manual wallet? The stock thin vinyl one is probably lighter. Heck on the RS they took off the cool Porsche emblem and replaced it with the lightweight sticker and charged more!
Because for a one-pound difference, as stated in the story, the main reason is looks cool. I think the trick RS magnesium roof is probably better for a street car.
If you want mental gymnastics for a one-pound difference, you are a weird cat.
Finna be PorscheIQ pretty soon. Love it.
Man, your car is getting light. It’s only about 90lbs more than my 718 T was stock. I’ve taken a little bit of weight out of it, but also added in some weight. I have a couple more things to do to take out weight without compromising the daily liveability.
I have some carbon Weissach edition sway bars that should shave another 12 lbs off. I think my planned strut tower reinforcement and brace might cancel some of that out though. Future carbon airbox will probably shave a few more lbs out of the back.