Need to replace my DMF in my 2010 Jetta TDI DSG. Want to use Southbend K70446-01F SS O (2399) or K70446-01F SS TZ (2499). It might be overkill for my use but I want the DMF to be the last one I install. I plan to go to a Malone stage 3 with CR170 upgrade & DSG tune. Any suggestions? Suppliers to get a better price on Southbend DMF? In advance thanks!