Need Opinions:Rebellion vs. Weistec vs Renntech
From the research I've done, it seems renntech is pretty safe, especially since they are offered in-house at some benz dealers, however the power levels arent that impressive compared to other companies, such as weistec. The issue with weistec is the fact that its a full ecu flash, and that I'd have to be without a car for a while as I mail in my ecu. Also afraid my warranty could be easily jeopardized going this route.
Therefore, I'm looking into the Rebellion tune, probably a stage 2 with downpipe. It looks like they offer a little more gains than the renntech piggyback tune. But I like the idea that its a piggyback tune and I can remove it when I go to service the car at the dealer.

What are your opinions or thoughts on the different tuners?


