[PrematureApex]

Originally Posted by txskibum_bmw

I meant the tree-hugger as a bit of a self-deprecating joke . I have a 1700CC drag bike (Yamaha warrior) and an Land Rover LR3 as my other vehicles...if I were really concerned about the environment I suppose I would pick more efficient vehicles in general

However, there is something I personally don't like about removing a cat or modifying a car to the point it couldn't pass emissions without some sort of defeat device installed. I certainly don't judge anyone else or claim my perspective is reasonable or should be widely adopted...but that's where I am at for my own vehicles. If my wife would let me, I would buy a 2 year old stingray in a heartbeat (which could pass emissions even though it is a ridiculous car for someone who cars about that sort of thing...I am odd I suppose.)

Most of the mod advice I have seen includes a catless DP in the chain at some point, so I wasn't sure what other mods are reasonable if I refuse to do the catless DP.

The DP on pump gas isn't worth a lot of power on the N55, there's some smallish gains, and a sound improvement. Start with the JB4. 60+ whp vs. 10-15 for the DP. You'll be surprised. Sound aside, the car drives all but the same with and without the DP.