Originally Posted by xfire1
are these headers originally outfitted for the slk? or are they custom?
hddp i mentioned this before and i don't want to be redundant but just a reminder... the mercedes benz forums have people installing headers... exhaust pipes MUFFLERS and more in their 320s.
I'm not sure I get your point ! These are MB racing headers that were designed for the 112 engine.
Originally Posted by xfire1
they are also installing new crankshaft pulleys as well (kleeman and Linh pulley systems). people there swear by the change...should you go with a pulley change... Linh pulleys offer 24/7 contact for questions and installation assistance... and seems to be the members favorite throughout 4 different forums...
The jury is still out on the benefit of underdrive pulleys. the COST vs. HP ratio is not really worth it IMO. Especially since the AC compressor is being removed already.
Originally Posted by xfire1
since there will be less backup pressure because of the headers... does your chip have to be remapped?
My ECU has already been flashed, but I finally found an engineer in Los Angeles who custom programs MB ECU's for the Grand Am racing teams and is willing to take a look at mine after the headers are installed and I have another dyno done with a printout of the FAM. Speaking of which, he berated the companies who do "cookie cutter" ECU remaps and said it was a total waste of money.