bolt ons

Hey guys. First time on the forum and looking for some insight from long term owners or knowledgeable mechanics. I own a 2012 Mazdaspeed 3, 125,000 miles, owned since new and maintained very strictly, so the car runs very smoothly. Original turbo and engine components. The only modification I...

Hey All, I just purchased some parts finally from Corksport. 3.5in intake, CBE, DP, AP V3, Fuel Internals, BOV, Turbo Inlet. My car is a 2011 Speed3, All Stock with 149K miles. I called a shop to tune the car and he is worried about rod stretching/failure and would really reconsider modding...