Nm2far

Soul Performance

To my knowledge we only had one customer with a CEL issue. We sent out a replacement set to be 100% sure but there was still an issue. A new set of O2 sensors cleared up the problem. You could do the job on stands or drive up ramps as long as you have adequate room to get under the vehicle and drop the entire exhaust if that is your preferred method of doing the install. It's quite heavy so another set of hands or a trans jack is highly recommended unless you're training to be the next Mr. Olympia.

basic666

Soul Performance

You wouldn't gain much from taking the wheels off, but removing the bumper would give you more access and room to work.

basic666

But, correct me if i'm wrong, I thought its impossible or very difficult to get the bumper off without taking off the wheels?

AutoQuest MS

Nope, it's only a couple bolts on each side and you can access them with the wheels on. That said, taking the wheels off is so quick and easy we usually just take them off so we aren't turning around and whacking our head into a wheel when working under the car haha. Also allows use of a 1/4in impact in the wheel area which saves a little time versus hand tools.

basic666

Yea unless you got center lock wheels on the GTS

Also since we are having a healthy discussion, wanted to throw a wrench in this and see where it goes... bare with me!

The OEM cats seem to have two distinct pipes directly from the cats piping to the exhaust, while the Soul cats have one single exit that splits into two later on. Would this technically be less efficient and blocking airflow? I notice the AWE cats also have similar design to OEM. Since airflow seems rather important here (see the header thread, i think we are about to give out nobel prizes to airflow engineers over there), how big of a difference would this make here?

AutoQuest MS

HA! Touche on the centerlocks

Personally I'm not a fan of the OEM design and believe this design meets the goals of the product quite well. For your reference, open discussions online on technical topics like this I usually stay away from. Everyone is their own expert on the internet, and at the end of the day it is a massive time soak for information most people don't have the education to make a decision for themselves which is correct. That said, I shot you a PM to chat about it as I'm always up for a much more timely and efficient call to discuss it.

Soul Performance

Our single primary tube design routes the gasses primarily through the large pipe for the best possible flow into the muffler with valves open – which is where you want good power. Akrapovic has also designed theirs as such. The secondary tube comes off the primary as it does to offer an effective reduction in sound with valves closed. The focus was power with valves open, and a reserved tone with valves closed. We dyno tested our cats at AWE Tuning’s facility and in side by side comparisons vs their cats the power gains are similar.

Nm2far

I just had these installed on my 18' GTS. Sound amazing, Not too loud, but way better than stock. Goldilocks just right. In PSE nice burble without being overkill, definitely a head turner. Indy shop took 2.5 hrs labor all in said access was more difficult than they thought, however 1st new 991.2 they had done install on and they were being extra careful. Wasn't expecting , but could definitely sense a bit of a seat of the pants performance gain - seemed to rev quicker which stands to reason.

bosco42

Any way of telling if the units being manufactured and sold now have overcome the fitment issue that previously existed ?
For customer peace of mind they should be marked as Gen 2 or something like that as proof that they are the "real deal".

Nm2far

paxton

Just installed the updated version with no issue whatsoever!

Bob Z.

Nice to see, and especially nice to see someone that does not cover up their license plate...never understood why people do that.

paxton

Thanks Bob. I'm with you on the plate thing, not sure what one would do with a license plate number found online....especially one with a French "play on word" like mine!