Hello!!! I have a big problem with the catcams 469 profile camshaft on my facelift R53 and I want your opinion and help! So to start with my mods are: -17% reduced pulley -Ported and polished cylinder head -Catcams 469 profile camshaft -Orranje stealth intake with K&N Air filter -Bypass valve stronger spring -Supersprint 4-2-1 header with 100cps free flow catalyst and resonated JCW exhaust (63.5mm) -550cc Bosch injectors -Pro alloy motorsport intercooler -bkr8eix sparkplugs The car came out from engine rebuild and everything is new! We checked the car for air leaks, tmap and map sensors, oxygen sensor, fuel pressure regulator, fuel pump, spark plugs, blocked cat, spark plugs wires, coil pack.. Everything! The cars header-manifold glowing with the stock map but also with the tuned map and hesitates- stalls when starting to move in first gear when you are in positive low boost. If you try to start gently with vacuum its starts to move nice! The hesitation occurs when the cars water temp is below 70 degrees. When is hot it's just only glowing the manifold. We set the 469 timing on tdc like the OEM camshaft. Now we tried to retard the timing one tooth. The car now with the Oem injectors(320cc) runs fine and starts moving fine but still slightly glowing red the manifold (not like before we changed the timing). No we are waiting to tune again the car and see how its going! One thing that you have to know is that the car when tuned with this setup and the tdc oem timing managed to make 247 crank hp but with the symptoms that I referred above.. Do you believe that an adjustable camshaft sprocket will give a solution to our problem or is there something else that we have to check for??