Apart from sand in your oil, one of the fastest ways to wear out engines is to make a habit of running unnecessarily high piston speeds. A stock MPS pulls like a train to 5000 rpm, and more-so with simple breathing mods like mine, and it is redlined at 6500. Unless you want to tweak it to pull even harder, in which case you should be attending to other issues as well, like balancing and maybe stronger internals depending on how much tweaking you are planning, then the 1500rpm margin of safety is a good one to have and seems impossible to exceed accidentally. I'd view the configuration as an asset and not a limitation. I drive with enthusiasm but rarely see even 4500 rpm, considering this nanny state we inhabit.
CP_e Standback & PNP; CP_e 3" SS Downpipe; Corksport FMIC with Top-mount K&N filter & OEM Ram CAI; Turbosmart BOV; Dashhawk; Prosport Boost Guage; JBR solid shift bushes; DBA 4000 Wiper-Slot front rotors; Hawk Ferro-Carbon HPS Street front brake pads (@ 69,000km); Sumitomo HTRZIII's in 225/45 x 18