I recall reading an article in the Diesel Power Magazine sometime over the past six months on some modifications that I could perform on my 05 Liberty CRD.  I can NOT seem to find that issue!  Does anyone reacll reading the article?  It mentioned the exhaust, a chip that is available and a K & N air system - all with part numbers.  If anyone can steer me to the proper issue I would appreciate it.  

Thanks!

S Peterson