the double stack was a bit too aggressive for street cars, but in racing it was very functional, in fact perhaps too functional since as some mentioned I too read about it being outlawed. The T1 is a nicer spoiler for the street, but even it might be a bit much, especially considering it all but obstructs your rear view mirror vision. I personally like the T1 wing but they are just hard to find oem, and even then there were no saleen markings on them that I'm aware of, so unless someone has some time of "proof" or paperwork of sorts, I'd be hesitant to pay a premium for one unless I personally knew there was something to look for that made it a Saleen piece and not aftermarket. Like with the heat extractor hoods, the only Saleen OEM hoods that had any part numbers on them were ordered through the Saleen catalog back in the day. In terms of how to tell an authentic Saleen hood without part number on it (Keep in mind this is for the '94-'98 hoods) one way was to look for type of fiberglass used (on non carbon fiber hoods), on authentic hoods it was a woven type of fiberglass, whereas aftermarkets it apparently was crushed/layered type of fiberglass. If someone else has anything they know that contradicts that please let me know as I'm always looking to learn something new (and with Saleens, it tends to happen relatively often).