The exhaust costs $1399 plus shipping for forum members, and if we're lucky enough to get in on another GB, they'll be $1299 plus shipping. All their exhausts are made custom with 02 bungs welded for wideband, resonators for those who don't want the cops on our backs for noise pollution, or with no cats for those that want the best results.
The big thing that is attractive about the iON is the DP that for some reason, no other company has taken the time to develop even though there is an obvious demand for the product. This piece has been pretty much the holy grail for MSP owners since I've been a member of this forum and an owner of a MSP almost exactly a year ago, and it seems as if zero progress has been made on this part that everyone wants. Every once in a while someone will come by and say they've met some guy at a meet that will make it, but goes mute after about a week of "Make it and I'll buy it" responses.
I like to give people the benefit of the doubt, and I'm guessing the R&D and everything for this exhaust costs a pretty penny, which is why no one else since the creation of this car has been able to make a DP like the one iON has made. They're not going to do this as a favor since I'm sure they've gotten used to eating and need to make their endeavors worth while, which is why it is expensive (and us being forum members get a $200 discount already). The costs get kicked back to the consumers so iON can make a profit, like every other company does.
Mark-MsP, you're making an exhaust for $750 that was designed by iON. That design time and R&D costs money, since they did it from scratch. The $750 does not reflect the time it took iON to make their exhaust, and I'm sure if they were able to take someone else's design and copy it, they'd be able to sell it cheaper than that.
I don't own any iON products, but maybe someday I will, and I'd like to see them in business when I gather enough money to buy their turboback exhaust, since they can make it exactly to my specs.