tomekz

I have been told that black exhaust tips on the Cayman is normal but I am not convinced.

The tips on my 981 S get so black it's not even funny.

Anyone have any photos of their tips they could upload?

thanks,

Turboale

I hear you! No amount of buffing can bring them back...











I kid... I kid... But honestly if you can't beat em join em. Having black tips definitely helps.



so my post isn't totally useless, I always used to use and had good luck with neverdull... LINK
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ICNU

They are very sooty because its a byproduct of a direct injection motor design. It should be a dry soot, as an oily soot or one side that is oily vs the other could indicate bigger engine issues such as bore scoring. The presence of soot alone does not mean anything is wrong as anything burning gasoline will make soot, and again a direct injection engine makes it worse. Mine will spit black droplets all over my garage floor when first started when the moisture in the exhaust mixes with the soot, but there is zero oil in anything. It also makes a mess of my yellow rear bumper after a day or driving in the mountains, but some of that I'm sure is also coming from the road and the air turbulence generated behind the car at highway speeds

okie981

Black sooty tips on 981 cars is perfectly normal for street driven cars. If you take your car to a track day and spend an hour over the day at wide open throttle and at RPMs above 5,000, you will find your tips nice and clean, a nice tan/gray color on the inside. If I saw black sooty tips interior color after a track day, I would start investigating what's going on.

tomekz

thanks guys, now I feel a little better. The soot was driving me crazy and I really thought something could be wrong.

beradorbebad

Direct injection = black exhaust tips

RGS

Yep, same here, black dry soot, needs cleaning every wash.

maschinetheist

Yep. Normal. I gave up cleaning mine. “Simple Green” can bring them back to normal.