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Ever since I saw the Apex Forged thread I want a set of their 18s, but then saw that 18" tire selection is quite poor. If I go that route, I'm looking at 19s I think.
I had similar issues with Top Gear UK sourced 200 cell cat pipes for my 997.1 a few years ago. Sounded great, but the CELs would keep popping up Tried all manner of O2 sensor spacers, even the 'mini-cat' type, and nothing worked. Went back to stock and no codes.
Then went whole hog and bought FVD PSE specific headers and 200 cell u-bend cat pipes. Fantastically expensive, but was 40th birthday present to myself. High quality, made by M&M Exhaust in Germany. They make motorsports exhausts for GT race teams and the like. Very cool, were made to order - the part number sticker had my name on them! Same sort of experience when guys are buying parts from small, cottage industry aftermarket JDM tuning houses I guess. Anyway, haven't had a CEL with the FVD/M&M set up at all. You pays your money, you takes your chances though. The FVDs were a great way to turn money into noise...
Love the photos BTW.
this what I did too. I have Full FVD exhaust and the cats were acting up so they remade the full Cst section with the best of the best 200cell German cats HJS. I have had zero cells since putting on proper cats. And the Long tube headers scream above 4500. Stoked to see a fellow Oregon 997 enthusiast.
I contacted @Emc2design but their adaptation kit won't work for my application. I will figure something out. I don't like the aerokit lip. It looks good but I'm not into the two vents. Just a personal preference.
Originally Posted by Saaboteur
Sounds like you need to chat with @Emc2design because he's done the Turbo front lip retrofit to 997.1s.
Ever since I saw the Apex Forged thread I want a set of their 18s, but then saw that 18" tire selection is quite poor. If I go that route, I'm looking at 19s I think.
I recently installed the 3rd radiator kit for our cars. Instead of buying the .2 kit, I followed the advice of EMC2 in this thread (https://rennlist.com/forums/997-foru...don-t-fit.html) and bought .1 kit plus the necessary parts for the .2 application. I also bought EMC2's adapter duct kit for the .2 cars. It helps keep the airflow to the side radiators as clean as possible and looks pretty good too. I won't get into the step-by-step DIY here but have some insights and observations to help others who are considering doing this project on your .2 car.
I was able to use the Hunter alignment machine at my local tech's shop, which helped make it easier to access everything. Here is the patient on the operating table:
We had a couple saw horses to place the bumper cover aside. I also recommend having a large blanket on hand to work on the bumper cover (see notes below). I bought a moving blanket from Harbor Freight and it worked out great.
You will need to modify the underside of the bumper cover to allow for heated exhaust from the center radiator to vent under the car. In Wayne Smith's thread about his 3rd radiator install, Frank 993 C4S mentions cutting away more material than the conventional approach of cutting out four holes on the underside of the cover. If it's good enough for his race cars, it's good enough for me. Frank's approach allows for even more air to vent but it leaves the leading edge a little weak. I ended up using 4 aluminum downspout straps from Home Depot to reinforce the edge and also create a slight Gurney flap that creates a low-pressure zone behind the leading edge. The straps are very similar to what you can buy on Amazon (
). I painted the straps black, sandwiched the bumper using two straps, and secured them using rivets and some Gorilla adhesive. The straps are light, inexpensive (about $2/ea at Home Depot), and low-profile enough to hopefully not catch on anything that sticks up from the ground. We'll see how long they last.
While the cover was off, I took the opportunity to paint the side and center radiators with some high-temp black paint. I don't like the look of bare aluminum and this helped hide the radiators more and keep them discreet. But if you know, you know.
It appears the adapter ducts are 3D printed and they are fragile. DO NOT drop them. I accidentally dropped the passenger-side duct and it partially cracked along the vertical seam. I ended up having to zip-tie stitch one end and use some Gorilla tape on the backside to help reinforce it. Hopefully it will last but time will tell. I might end up having to replace that duct at some point, which will be a bummer. But overall, they fit well and look great.
I bought a center Zunsport grille kit for the GTS to protect the center radiator from large debris. The side radiators already had grilles installed from a previous owner.
Finally, I popped the headlight washer covers and painted them matte black. I didn't like the look of the chrome finish and now they blend in a little more.
Overall, it was a relatively easy install, but time-consuming. Most of the time was related to removing, modifying, and re-installing the bumper cover, and painting the radiators. I'm currently on a road trip and having a 3rd radiator will give some peace of mind when stuck in traffic and perhaps while doing some hard driving.
I'm currently in the middle of a road trip 2,000-mile road trip. Landed in Palm Springs for Modernism Week. I saw the most snow I'd ever seen on the Grapevine Pass just north of LA. At one point, the CHP was escorting cars over the pass because it was so bad. The car handled flawlessly with the snow tires. This was taken after she was cleaned up at a local car wash.
Just stumbled on this thread. We may have near twins. 997.2 GTS, Black on Black, 6MT, LSD, 5 lugs, alcantara delete, retrofit Sport Buckets.
Good to see another wrencher on a GTS.
Just stumbled on this thread. We may have near twins. 997.2 GTS, Black on Black, 6MT, LSD, 5 lugs, alcantara delete, retrofit Sport Buckets.
Good to see another wrencher on a GTS.
Yes, twins, but yours is on a whole other level! I secretly admire your build and the insane mods you've made. Nicely done. I'm installing some suspension mods next week and will provide an update soon. The latest addition to the build was installing a DSC Controller.
I bought one used from a fellow Rennlister musclemind (thanks, Chris!). I had a DSC in my GT3 and was very happy with the way the bumps are softened and modulated. The difference is noticeable in the GTS as well. I drive in Sport mode all the time now and it is quite nice and not as harsh over bigger bumps as it used to be.
Some notes on installation:
I used this video as reference for removing a panel which provided more access to the controller and definitely helped:
Access to the controller is in the passenger footwell. Space is tight but it is relatively easy and should take about 5 minutes...unless you accidentally pull the entire bracket that holds the controller out when trying to remove the stock controller. I did this and it took me an additional 5 min to reinstall the bracket because I was basically flying blind trying to seat the bracket in its original position. PITA.
If you don't have a DSC controller, get one. Highly recommended. It's amazing what modern software can do to PASM.
Yes, twins, but yours is on a whole other level! I secretly admire your build and the insane mods you've made. Nicely done. I'm installing some suspension mods next week and will provide an update soon. The latest addition to the build was installing a DSC Controller.
I bought one used from a fellow Rennlister musclemind (thanks, Chris!). I had a DSC in my GT3 and was very happy with the way the bumps are softened and modulated. The difference is noticeable in the GTS as well. I drive in Sport mode all the time now and it is quite nice and not as harsh over bigger bumps as it used to be.
Some notes on installation:
I used this video as reference for removing a panel which provided more access to the controller and definitely helped: https://youtu.be/V4_KPY-PbL0
Access to the controller is in the passenger footwell. Space is tight but it is relatively easy and should take about 5 minutes...unless you accidentally pull the entire bracket that holds the controller out when trying to remove the stock controller. I did this and it took me an additional 5 min to reinstall the bracket because I was basically flying blind trying to seat the bracket in its original position. PITA.
If you don't have a DSC controller, get one. Highly recommended. It's amazing what modern software can do to PASM.
Do you really feel the difference? I installed DSC recently and I can barely feel any difference. That's with using vendor's map that comes with
Do you really feel the difference? I installed DSC recently and I can barely feel any difference. That's with using vendor's map that comes with
I customized my maps and it's awesome. In normal mode, I have my B16S set to full soft until about 40% of the g-table and then then incrementally stiffen to 1,500. In sport mode, they start stiffer and incrementally stiffen throughout the complete table down to the full stiff setting the shocks are capable of, which I think is 1,200.
I'm doing these values from memory so they might be off, but you get the idea. Makes the car in normal mode very comfortable when going straight at normal speeds on the highway, but stiffens up for on-rsmps and off-ramps. If I driving fast on the highway (over 90 mph), I'll run in sport mode for the extra stability and stiffer.suspension through dips.
Do you really feel the difference? I installed DSC recently and I can barely feel any difference. That's with using vendor's map that comes with
Yes, difference is noticeable, especially in Sport mode. Peak damper modulation is significantly smoother, not as many "clunks" over potholes and bumps.
Originally Posted by kellen
Nice mods. Just noticed the thread started with girlfriend and ended with wife. Congrats!
I'll chime in with a hearty recommendation for the DSC box:
I agree with Busta, my GTS has been transformed.
I drive in SPORT mode almost exclusively now- with OEM controller, it was selected only on the smoothest roads or really pushing the car hard- when ride quality was the least of my concerns.
Even then, the PASM in SPORT mode was slower than the DSC to react to changes in elevation and rapid lateral G-load onsets/offsets. A significant surface irregularity mid-corner, under G-load, would occasionally unsettle the rear end and result in a momentary change (a loss) in rear grip/traction.
No bueno.
The DSC reacts to those road imperfections a magnitude faster than OEM, and also uses 4 independent channels of control- which already existed in the PASM architecture (which, inexplicably, Porsche's OEM control box failed to utilize/exploit). I feel much more balanced/coordinated control of the shock valving- on both compression and rebound. I now have a nuance of confidence that I did not enjoy with the OEM controller- it bit me in the *** mid-corner a few too many times.
It is nothing short of remarkable, for me.
Driving around on city streets, expressways or highways, it will probably only overtly present as minimizing suspension harshness over major bumps, dips or potholes.
Get out and drive it in on canyon or mountain roads with multiple linked turns of varying radii and lots of elevation changes. Add some road surface irregularities like depressions, bumps, wash-boarding or off-camber grades.
The DSC-controlled PASM really shines in those conditions.
Or max perform your chassis on a track. You'll see.
Best $1000 I ever spent on my 911.
A game changer, for me.
Should have come this way from the factory.
Feel exactly the same way about the Sharkwerks center muffler delete pipe on an X51 3.8 with PSE.
Game changer.
Last edited by Liste-Renn; 03-18-2022 at 07:59 AM.
I'll chime in with a hearty recommendation for the DSC box:
I agree with Busta, my GTS has been transformed.
I drive in SPORT mode almost exclusively now- with OEM controller, it was selected only on the smoothest roads or really pushing the car hard- when ride quality was the least of my concerns.
Even then, the PASM in SPORT mode was slower than the DSC to react to changes in elevation and rapid lateral G-load onsets/offsets. A significant surface irregularity mid-corner, under G-load, would occasionally unsettle the rear end and result in a momentary change (a loss) in rear grip/traction.
No bueno.
The DSC reacts to those road imperfections a magnitude faster than OEM, and also uses 4 independent channels of control- which already existed in the PASM architecture (which, inexplicably, Porsche's OEM control box failed to utilize/exploit). I feel much more balanced/coordinated control of the shock valving- on both compression and rebound. I now have a nuance of confidence that I did not enjoy with the OEM controller- it bit me in the *** mid-corner a few too many times.
It is nothing short of remarkable, for me.
Driving around on city streets, expressways or highways, it will probably only overtly present as minimizing suspension harshness over major bumps, dips or potholes.
Get out and drive it in on canyon or mountain roads with multiple linked turns of varying radii and lots of elevation changes. Add some road surface irregularities like depressions, bumps, wash-boarding or off-camber grades.
The DSC-controlled PASM really shines in those conditions.
Or max perform your chassis on a track. You'll see.
Best $1000 I ever spent on my 911.
A game changer, for me.
Should have come this way from the factory.
Feel exactly the same way about the Sharkwerks center muffler delete pipe on an X51 3.8 with PSE.
Game changer.
02-04-2022, 05:48 PM
