Cm870 upgrades

[RPM1]

I know guys that do the ceramic coating 1 to make the exaust last longer cat equipment is not cheep even the exaust also coating the exaust manafold they don't rust and u get that rust stain bleadi g down in things , I have Hurd is also not as warm around engine , I wouldn't think. Not By much though ,
Performance wise , I dough u would notis, just my 2 cents