Hamzarm

Hi guys,im looking for a aftermarket exhaust for my 991 speedster. as my car has the European exhaust which sounds very muted compared to my GT3RS even when that had the stock exhaust.

Any suggestions ?

JSETarga

deleted sorry

Jimmy-D

JCR appears to have the leading edge

ScratchTheItch

Is this due to the exhaust or particulate filter? What exhaust setup would remove the PF?

JCR-Porsche

We have both Silenced and Non Silenced options available now, thread linked below with a ton more info.

https://rennlist.com/forums/991-gt3-...speedster.html

Parts are available to order now

JCR OPF RACE PIPES

Happy to help with any questions you may have

JC

JCR-Porsche

The particulate filter acts as a pretty efficient silencer in its own right, with that in mind and in combination with the latest emissions regs pretty much all late generation cars, including GT will be very quiet from factory.

We have the silencer replacements available now, we had two cars on track testing all day yesterday gathering a huge amount of data









We’re currently part way through development on our Inconel 625 manifold / header replacement which deletes the OPF entirely and replaces the factory cat with a high flow 200cel race cat.




No CEL and no need to flash the ECU. Direct replacement, less than half the weight of the factory headers and a good amount of sound and performance improvement!

Well ahead of the curve on this one. We also have new 718 GT4 and Spyder in too..

JC

gmgracing

Europe got the jump on it logistically, but we are developing this shortly

-Dom

JCR-Porsche

We acquired an exhaust system to start reverse engineering prior to any cars being delivered. I’m sure with your guys contacts within the factory you could have done the same, Dundon did.

JC

James-GMG

We will have a new Speedster in our shop this Friday for full development, stay tuned and let the fun begin! :-)

BrntRubber

JCR treatment going on my .3 3RS this Saturday! Went for Non silenced and can’t wait!

JCR-Porsche

Then Speedster Monday?

JC

mdrums

Are USA Speedster cars coming with a Particulate Filter and Cat?

ONEOFEW

Yes, it's got all those goodies, I've logged on nearly 700mi on mine, I must say with the top down I'm not sure if I would want a whole lot louder. Key is the get the valves to open sooner. For me that would do it.

JCR-Porsche

We have a valve delete option and large diameter titanium tips which remove the inbuilt restrictor in the OEM tips for those who want a little more but don't want to swap out the factory exhaust

Releasing the kit of parts next week

JC

ONEOFEW

you guys are awesome !