0-60 is a notoriously bad metric to measure power gains. The variations in grip & other factors over a small window such as 0-60 are very hard to control. 60-130 will give you a much more accurate datapoint with fewer variables.

 

2017 4S with Powerkit. Vector Headers, Softronics Tune, Bored 2.5 inch holes in Cats, Tial intake with BMC air filter and Tial Turbo elbows. Michelin 4S, Bilstein Coilovers, lowered. DSC Suspension module.
Best 0-60 run (with Dragy) Consistantly 3.1x and 2.9x with 1 ft rollout. I turn the traction control off to get those times as its AWD and seems to hurt the performance with it on.

 

Nice mods! Do you have PDK?

 

Thank you for all your input.

My car is a PDK C2S with OEM sports exhaust. Tires are low mileage Michelin Pilot Sport K3. The run was a regular road surface.

I'll edit the original post to include this information.

 

The 2.5" holes are very intriguing. How long have you been running with the holes? Does the CAT start falling apart with time?

Does your car still pass SMOG?

Is it as loud as catless? I have tried catless and could not tolerate the noise.

 

yes, it’s PDK.
I like manual, but Love the PDK

 

I don't think Tesla and "long cruising" can be mentioned in the same converstation.

 

It probably won't pass Smog as It has a 2.5 inch hole in the center of the Cats. The 02 sensor still sits in a "cup" of the converter material so I never get a CEL.
It is louder outside, but not inside. When I did this, my wife couldn't tell a difference of the sound inside, but she did say it sounded deeper and gutteral outside.
I don't think I will ever have an issue with it getting loose in there as the cat material is very soft and I was able to use a 2.5 wood hole saw and turn it by hand and not use a drill. I just went back and forth (clockwise etc) until it went all the way through. I actually cut the 2.5 inch hole saw in half and then used a piece of 2.5 exhaust that was about 1 ft long, wedged them together and bored through them. Worked great! The material seemed very stable after I was complete.
I also disconnected the (plugged up) syposers as I didn't want more noise in my cab.
I noticed that the exhaust noise has a hint of turbo noise when hitting the gas (I like it) Seems to have livened up the engine as well especially with the headers.
Don't know if its louder than catless as I never heard a GTS engine that was catless, only what I did and it sounds great (according to a lot of people)
1 negative is I do get a hint of exhaust smell every now and then, but I've had Catless cars in the 70s and inboard jet boats and it seems the same as those. Does not bug me.

 

Weird I have owned my 991.2 GTS for a few years now and not once I have even had the urge to put it in launch mode. Never though about drag racing my car for some reason. Come to think of it, I never tried to see if it will really go 196. Probably a good thing I didn't have a car like this when I was 16.

 

I can't imagine beating the PDK up - not to mention tires, engine, etc ... by doing launches - too much boy in that :-)

I did do two on my 2015 991.1 - to ensure it worked. Exhilarating, but a Tesla sedan is about 20-30% faster to the end of the street - meh.

 

The PDK is stronger than you think. You can do launches all day long and it will be fine. Engine too. Tires? Not so much!

Here's a great example of a 2014 Turbo launching 50 times in a row, 61 actually.
Not that it's recommended but the cars can handle the abuse. The 911 is a stout platform.

Back on topic, I have a tuned 2019 T with the manual and get mid 3's if I'm lucky. That launch is tough in the manual!!

 

Sure - except there are enough PDK failures to consider ... what's a replacement? $30-35K and a two month down time?

 

The dumb thing is they don’t break from abuse, they just break because of a stupid non serviceable sensor design and no redundancy. Luckily very small % failure.