Cost complete with hardware about 6500 us

I never even knew about the reported speed increases when I did mine. (last month)
Gained 8kts ish. Was surprised. It was obvious from the first flight. Kept track of it on several flights - 8kts is conservative/honest gain.
That said- it was a slow 185 to begin with so that helps….. Probably not that much speed gain on some.? It did place the front of the engine noticeably higher too.

Super smooth tho. Would do it again. If you do some reading, you can't really run a 3 blade without that or a -16 mount via Cessna data (C185). Probably good reason.

For what it's worth, for those considering this change who may have a pilot side exhaust outlet like I did:

I waited until the exhaust was hung to verify, but the hole I cut for the new exhaust was exactly mirror image and symmetrical to the original exhaust hole.

I have a couple flights now on my new mount and exhaust and can report back positive results.

I didn't have enough experience beforehand (and it was in much warmer temps) to report specific performance gains and I did previously have the Knisely exhaust which already had the larger diameter collectors. But I'm thinking it could be a bit faster.

The plane is much smoother now in cruise and the wobble in my instrument panel pretty much non existent.

With the engine at the right location now (nose sits about 1/2" higher) I did notice that I didn't have to rotate as hard.

Practiced some STO&L's today in the 10 degree temps with a 10 knot head wind and am blown away by the performance of this thing. I did four takeoffs n landings on RWY 30, all off the ground before and exited on the first taxiway!

Great news!

Actually just looked at a photo from my flight and noticed I was doing 140 mph at 22/2300. I recall previously getting 140 mph at 23/2300... Granted that is IAS.

Hoeschen wrote:.... I am also swapping the old rubber mounts to firewall with new solid bushing kit. ....

Like I posted here a while ago, when I bought my 53 C180 the seller included a set of aluminum firewall bushings to replace the standard rubber ones. They would be p/n 0751004-1 (bushing) and -751004-2 (pad), to replace the rubber parts p/n's 0550155 & 0550154-2.
Unfortunately, I don't know for sure if they are genuine Cessna parts, owner-fabricated duplicates, or just what.
Can anyone furnish the dimensions of the Cessna aluminum bushings & pads?
I want to install the right stuff, but I don't wanna drop $275 for the Seaplanes West bushing kit if what I've got is good to go.