bb85

Good afternoon, I am in the market for catted downpipes and I see that Keller-performance now makes a Titanium with ceracote coating catted dp for $2,799. That is not a bad price, but I have not heard much about this company, has anyone installed their products or have any info they can share regarding them? The other option I have is Renntech catted for $4,680 price is higher but they have a reputation within the AMG community. Anyone info anyone has would be appreciated, thank you.

Michael Khan

I have their DP installed but the ones I have are not catted. They really make the sound much more aggressive and louder. If you go catted you will get the CEL issue so just heads up for that issue. The quality is really good. My friends have his products installed in their M5 and Mclaren's.

apsuard

Keller in my opinion is best quality downpipes you can buy on this platform. Coated, 3D scanned, and perfect fitment.

I knew about them from the F90 market. They are probably most respected downpipes on that platform.

i think you will be very happy

dav461

i have decatted dp's, and no CEL. just get o2 spacers...

izzy63

Where did u get ur o2 spacers?

E63S.Muc

i talked to them as well. The one thing i dont like is that they have the catalysts on top and not on the bottom end. Which will produce more heat when tuned. Would love a version with bottom cats . Guess i will modify my OEM downpipe. Supersprint offers both options for cats. But i dont like the quality.

dav461

Bought them from guy who makes DP's . His Instagram

Foggy916

So, if I want to get more sound out of my performance exhaust, I assume the best option is to get downpipes? However, I want to avoid CELs and not get a tune. So getting high flow cats on downpipes would seem to be the solution but will this also set off CELs? Ideas?

bb85

Honestly I saw the Keller-performance DP on Instagram and the quality looks really good but I never heard of them till before I wrote on here. I’m in CA so I will get the catted version. I’m my past experiences, catted DP don’t through a cell and no need for O2 spacers for catted.

Foggy916

I just ordered the catted version. Will update once I get them installed. Just keeping fingers crossed no CELs because I want to avoid flashing ECU

dav461

200 cell ?in this case you won't have any issues.

bb85

Yes please let us know quality and fitment!

bb85

So I went ahead and ordered a pair of the catted downpipes they just got in. At first glance they look fantastic, great quality on the welds and the coating. Now I just need to find a shop in SoCal to have them installed. I will keep everyone updated on fitment.

shardul

iTrader: (1)

We can get a set made with GESI cats for $2500. GESI cats have the OBD2 certification so the CEL will no t be triggered.