yeah they have been tested and if you have any problems let me know .

I've been staring at that used one on the site, +25 for TT and all... Thing is are they guaranteed to work? I JUST bought a used one and I'm having issues. If I had 300 for a new one, I'd just do that...

did you want used or new? i have a good used for 100 or a brand new oem one for like 210 here is the link for the used http://www.z1motorsports.com/product...oducts_id=3140
the new one is http://www.z1motorsports.com/product...roducts_id=642
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let me know if i can help any more