AndreasPeriera

Adding a cushion or memory foam for lower back support would be my next step along with changing the angles of the seat from upright to a more reclined angle (according to some research, 135 degrees body thigh angle is a more natural position and would put less pressure on the discs)
Really appreciate your inputs.

maspirito

I had the four ways in my GTS and it wrecked my back as well, I have the buckets in my GT three put the memory foam in and now it's as comfortable as can be. I think the buckets need memory foam for lumbar support, anybody who rides in the passenger side with me now without the memory foam insert complains about lumbar support.
That's a controlled experiment BTW. Not really but close.

merc5326

GT3's don't come with sofas! With late model 911's there are 4 different seats:

Standard Seats (THIS WOULD BE A SOFA)
Sport Seats
Sport Seats Plus (standard in GT cars)
LWB

bli8

I consider all non-LWB to be sofas.

bli8

Try this 1/2" foam. I double up in areas where the curvature of my back is the highest and contour the foam down to a single layer. I have these plus some softer memory foam in all my cars. I started putting foam in all my seats more than 15 years ago and this is the first mod I do when I get a new car that doesn't have adjustable lumbar support.
https://www.jegs.com/i/JEGS+Performa...B&gclsrc=aw.ds

dwe8922

I have LWB's in my touring, and they are not as comfortable as the base sofa's in my old GT3. I did a 3 hour drive, and they pinched my hips. I'm tall, so they cause my back to hunch a little too much....

That being said, I love them for 90% of the driving I do, which is shorter trips, and I wouldn't have any other seat in the car. I bought two different sizes of memory foam lumbar pads, and they really help a lot. I use the small on for short trips, and the larger for longer trips. That would be a cheap experiment for you.

Alan C.

I've had buckets, 18 ways and sofas over the last 4 GT cars. I had zero issues with my GT4 with sport buckets even driving from Cincinnati to Atlanta. My current 991.2 GT3 has the 4 way sofas. I found I had to adjust my seating position several times to find the sweet spot with the 4 ways. Doing so I was able to do the same drive to Atlanta without issue. It takes some time and thought about how I'm sitting and where I have the steering wheel positioned, trial and error. Last Spring I let two friends drive my car at the end of the day. The next morning after one hour in the GT3 I was uncomfortable. The steering wheel had been moved to the rear and downward from where I had set it. Changed it back and I was ok.
On my side I have 4 lumbar fusions with cages, rods and screws along with 3 cervical fusions with screws and a plate plus a right hip replacement. At 72 I don't plan on letting a seat stop me anytime soon. I'll continue trying to find the sweet spot between me, the seat and the steering wheel.

CAlexio

OP comes to Porsche forum for back pain advice, gets the Porsche-related "advice" about his back from enthusiasts. Your comment is 100% on point but ...