Check the listing for details. Pro Tec Combustion Chamber Cleaner Carbon X 2 Comp. P4650. Condition: New, Made in Italy. Listed at 104.21 USD. The K1 component (cleaning foam) is a high-performance cleaning component specially developed to dissolve operational deposits in the entire combustion chamber of an engine. The product removes carbon deposits in the cylinder head area, in particular on the valves, on the piston crown, on the upper surface and in the area of the first piston ring. Also cleans the intake and exhaust valve seats (if open). Residues in the EGR valve, turbocharger and in the intake tract (intake pipe to intake valves) are also reliably removed. Carbon X does not attack seals and is compatible with all engine components. The K2 component (neutralizer) causes a chemical reaction that liquefies the previously introduced detergent foam (K1) and binds the dissolved deposits. The Carbon Since K2 has highly effecti.