Just completed some mods on my 2.5tdi Sport, all done for not a lot of money.
First mod was to try some Diesel Rhino additive. As was recommend by tbs on this forum. Not run it for very long but I have noticed quite a difference in performance, starting quicker in the cold snap and runs quieter. Need to do a longer term test to see if the mpg improves.
Blanked off the egr today and again noticed a slight improvement in pick up. I could see a bit of soot around the egr so no doubt it wanted cleaning, but I'd rather run the engine with out one.
Fitted a RS4 rear anti roll bar. Real big difference in the handling, feels like a different car on the corners, well pleased I went for it.
Changed the wiper arms for the newer style b7 airo blades. First test to try the above mods was when it was raining and was impressed how quiet and clear the blades performed.
Just feel like I have breathed a new lease of life out of the B6 and well pleased with the results.With having a remap as well I'm really not bothered about a b7 3.0tdi now anymore.