biggest thing is it cleans-up the engine compartment and slightly lowers under hood temps. no real performance gain. we sell EGR delete kits, comes wth the plate, gskt, bolts and a cap for the header tube. you will have to get a chip burned or a re-flash to turn-off the MIL and loop the vac hoses going to the regulator and flow sensor together and tie-wrap the wires out of the way.