As for durability and longevity-it's all on how you take car of our motors. They will all last if you take care of them, watch your temps, gear correctly

As for how they compare to others?

Let's put it thus way- the murfdogg 17.5 is the fastest non boosted 17.5-so imagine how fast they are with a Tekin. I know the guys running at out local track with 17.5s are asked quite often what they are running, because they are doing things meant for mods only

Now-my 13.5 is pulling 6.5's down the straight. And tearing anything up in the infield.

If you need any help or setups, PM myself, rangerjkb, or the murfdogg and we would be happy to help!