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Shot in the dark. Welds failed on my aftermarket setup and the stock cats I had are bad. WTB ideally some sport cats that will mate with stock mufflers. Also would consider some factory cats. Pretty long lead time on any of the other aftermarket options. Let me know what you’ve got.
I just installed Fabspeed sport cats on my car. They mate right up to the stock components of your exhaust. Wait time from order to delivery was maybe 2-3 weeks.
I just installed Fabspeed sport cats on my car. They mate right up to the stock components of your exhaust. Wait time from order to delivery was maybe 2-3 weeks.
Thanks Toby. Spoke with them this morning. May be going in this direction but want to explore other options.
I just installed Fabspeed sport cats on my car. They mate right up to the stock components of your exhaust. Wait time from order to delivery was maybe 2-3 weeks.
Hopefully not to derail thread too much, but any impressions? Trying to decide between Fabspeed/Kline/Speedtech for catted x-pipe. Thanks
I recently went with a 200 cell x pipe with software upgrade, by FVD (M & M) and really like it. Combined with a Fister exhaust I already had installed, the sound is perfect for me: no drone, low growl, high howl but quiet enough at low rpm's to not announce my return to the neighborhood.
@brontosaurus I've been pleased with my Fabspeed setup. Nice subtle change in the exhaust note. Workmanship is great. I purchased and installed the Sport Cats and MaxFlo mufflers for my car. Finished the installation off with carbon fiber tips from Kline. I lconsidered Kline and Dundon, but the price for those systems was too high for me. While not inexpensive, the Fabspeed setup was half the price or more than those two other systems. I've had good luck with Fabspeed on my '89 Targa as well, although I went with Dansk stainless exhaust manifolds rather than Fabspeed headers.
I recently went with a 200 cell x pipe with software upgrade, by FVD (M & M) and really like it. Combined with a Fister exhaust I already had installed, the sound is perfect for me: no drone, low growl, high howl but quiet enough at low rpm's to not announce my return to the neighborhood.
200 cell sport cats - They will deliver more decibels and low deep sound at start up and higher up in the rpm band. They will give you more horsepower in the mid-range and top end. They will also give you more mid-range torque and can be used with the Fister mufflers. However, we recommend a software upgrade with the new sport cats as the factory software will run rich and can dump raw unburnt fuel on the cats which will reduce the longevity. Our exhaust products are made by one of the exhaust manufacturers to Porsche Motorsports in Weissach. They make the RSR and Cup R exhausts for them. They have flow tested the 200 cell cat X pipe design they made along with other versions and say that design helps with the mid-range torque which can be lost with a free flowing sport cat.
I bought the instrument for doing the software changes. If you decide to go this route, I am willing to work something out to loan the instrument.
From what I have observed on other 996 (not sure if this also applies to GT3), is that breathing mods will start to lean out the afr slightly. While the car can, and does compensate, the leaner AFR does make the car pull timing slightly. I would hazard the tune is simply adding in some fuel and allowing the ECU to do what it was doing previously in regard to timing.
For anyone is planning to order FVD cats, I would suggest you contact Gert @ Carnewal instead. I was able to order the same M&M 200 cell cats for $1800 shipped from Gert. FVD markup is significant to say the least.
Last edited by brontosaurus; 02-14-2023 at 09:37 AM.
For anyone is planning to order FVD cats, I would suggest you contact Gert @ Carnewal instead. I was able to order the same M&M 200 cell cats for $1800 shipped from Gert. FVD markup is significant to say the least.
Ordered mine from FVD last week. Don't see these on Gert's site. Did you just reach out to Gert via email?
@craina@dukmon or anyone else. I recently picked up the FVD/M&M 200 cell x pipe as well and I’m trying to figure out if it’s correct before I tear everything apart.
The thing I noticed immediately is the header flanges are at different angles vertically. The stock FVD picture doesn’t look that way, and I can’t find that kind of angle in stock header pictures. I do see a slight angle in 996.1 GT3 pipes, and I could’ve sworn I read a post about someone being sent a 996.1 pipe instead of .2 but I can’t find it. (Are they different?). Doing rough angle checks on my car, it looks like they should be roughly in the same plane and do not look to have this much deviation.
02-07-2023, 11:55 AM
WTB Catalytic Converters
