Pad Bender

Finally got some Father's Day footage...enjoy.

Pad Bender

Little night drive last night....too bad the Lambo wouldnt pull. Recorded in Sport mode for drama with Normal and valved closed at end.

Jimmy-D

Has anyone heard or has the JCR Valved Titanium exhaust(Cat back) for the 992??

Pad Bender

i have only heard it on Turbos...im sure it sounds incredible on the 3.0 engine too

Mine is valved by the way....civilized in normal/closed and no drone. Its like playing wind instrument.

Jimmy-D

Yours does sound really good. Almost sounds normally aspirated.

I like

Pad Bender

JCR is super focused on Porsche...you cant go wrong IMHO.

Jonny from JCR is very responsive...got a hold of im on instagram very quickly.

3-Pedals

Do you get CEL with this system in the US?

PorscheObsessed

here is a link for a group buy thread that could get you a max discount of 15%. So far we have 4 committed people. Includes videos to Carrera applications of JCR.

https://rennlist.com/forums/992/1333...m-exhaust.html

3-Pedals

What is the purpose of the heat shielding? Is it to prevent CEL? Is there no CEL guarantee without the heatshield?

Shogunade

From my limited understanding, yes. Any MY after 2020 will get a CEL without a tune for most aftermarket cats. Possible exclusions are Fabspeed and the new Soul.

3-Pedals

JCR's prior posts indicated no CEL, can anyone confirm or deny that claim?

How is it that FabSpeed is the only one that gets no CEL? Don't they all use the same HJS core?

Edit : From JCR's website "For cars with no OPF monitoring our Race Cats will not cause any CEL and do not require any tuning."

https://jcr-developments.com/product...onel-race-cats

Master Deep

I hope someone from JCR can confirm that they haven’t had any problems with a CEL on 2021+ US models.

Master Deep

How would the Valved Exhaust sound with stock cats and stock valve programming? (if I didn’t want to worry about CEL at all)

edit: I want to avoid drone in the 1800-2400 rpm range as I daily this car and drive in that range a lot.

I’m debating it.


I plan to tune in a couple years when the warranty is done, at which point I can disable cold start and change the valve programming. I could even consider adding cats to the valved exhaust at that point for stage 2 since the tune could turn off the CEL. Other option is to stay stock and just add cats plus valved exhaust in 2 years when I tune.

Shogunade

This is the route I chose. Valved center, stock cats and cargraphics valve control. I'll reassess cats if I'm not satisfied, but only if they'll guarantee no CEL. I really don't need 60 more hp, and $2.5k for a tune just to avoid CELs is silly.

3-Pedals

I would do the other way honestly if you dont want to go all in. Get cats only and leave center alone. If you get fabspeed, there is no CEL guarantee. If you get it, you return it. If you dont get it, you got 60 hp and more sound.

Also regarding tuning to “get rid of” the CEL, people dont understand that all tune is doing is not running the catalyst efficiency monitors. Which means your cat monitor is always in “not ready” state. All its doing is eliminating the icon from flashing. But if you were to go through emission testing, your car wouldnt pass. So the tune doesnt cheat the emission test into passing, all its doing is not running the test ever. So I would never spend $2,500 just to eliminate CEL. You will eventually have to go through emission testing which will ultimately turn into a headache (remove tune so monitor runs, which will trigger CEL, then you need to revert to stock setup, etc).