Happy to see a bunch of feedbacks on my thread,
I'll give it a try to answer all of your questions/curiosities..
First of all, YES next week I'm going to install it myself and YES I had to get all of the special tools ($150 timing tool - $100 crankshaft - eBay)
(BTW they are both necessary, cause the even crankshaft tool, which I thought of just being "nice to have" actually it's a must when you need to hold still the timing pulley IOT tighten the lug which holds the pulley connected to the camshaft (80-100 ft/lbs )
I'll try be as "scientific" as possible in my testings (please pass me the word I'm just a private enthusiast),
by that i mean:
I did dyno my car one week ago on a 4WD dyno;
After I change camshaft i'll repeat the test on the very same dyno (without changing any map or anything else).
Hopefully I should see some improvement as It is..
Some seller claims (outside the US) an increase of 25-30 hp with no map, up to 235hp with a simple stage 2 and up to 280 hp with a stuffed turbo.
This brings me to another point..
As far as I know the only vendor which did develop specific maps for this camshaft is EC and you can read it on their site:
I bought the Columbo & Bariani which is the one sold by EC (even tough being sold-out forced me to get it directly from the factory where the owner, which I talked to, claims about selling over a 100 worldwide for 124 Spider and several hundreds for different Multiair applications).
As far as I know there's another vendor (TMC) selling a specific 124 "upgraded camshaft" even if he never stated the original manufacturer.
I do remember reading somewhere on the forum a post by Greg in which he was very upset with TMC for using EC original pictures of the C&B camshaft for promoting their camshaft product (which ultimately brings me to believe that at the end C&B is the only manufacturer..)
This is a sum up off all of the info's I gathered on the subject.. please feel free to add or correct me if I'm wrong..
I hope Greg will join the conversation soon IOT provide real professional testing feedbacks and tells us if a specific map is still available.
Ps: Zonker I'm available to sell my OEM camshaft given a minimum "break in" period with the new one..