Although it has been a long-time coming, the wait for a truly effective DSMIC upgrade for the mk1 TT is finally over. TyrolSport has carefully prototyped, constructed, tested, and re-tested many different core sizes and end tank designs on the dyno, on the street, and on the track. After a lengthy R&D process, we finalized a design which performs with incredible efficiency, blows away the stock intercoolers, and fits without a hassle....

Dyno/Highway Testing of Dual UGSMIC.