Anyone have the Renntech tune and Renntech downpipes for the W213 E63S?
sometimes scrolling down the forum might save you time
how did your w212 do with the renntech tune -- any issues? How many miles do you have on that w212?
how did your w212 do with the renntech tune -- any issues? How many miles do you have on that w212?
Renntech sport mufflers on my E 63 for all of its 52,000 miles and almost 4 years. I have not had one drivetrain problem with the car. It just works.
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