The eight-foot-long wing-like bar is mounted over the tail of the Seattle based Pay 'n Pak, current national point leader, in an attempt to provide a smoother ride for the hard-charging boat that reaches speeds of 160 miles an hour in the straight-aways.
Remund and the Pak - a new boat this year - are the favorites for Sunday's Gold Cup Regatta on the Columbia River.
"It's a good conversation piece," Remund said in an interview Friday. "It may not be helping us at all. We don't know. We think it is.
"When the season's over, we hope to take the stabilizer off and try the boat without it, just to see what happens."
Remund made clear that he thinks the boat runs smoother because of the stabilizer. It's just that he's not sure if it runs faster.
The Pak leads the list of 10 thunderboats that qualified for Sunday's race as of Friday night. Remund, of Palm Desert, Calif., averaged 124.310 m.p.h. for two qualifying laps this week - a new Gold Cup and course record.
The next closest qualifier is the Atlas Van Lines of Detroit, driven by Bill Muncey, at 116.863 for two laps.
The other eight qualifiers as of Friday night were Pizza Pete of Seattle; Miss Budweiser of Lakeland, Fla.; Lincoln Thrift of Phoenix, Ariz.; Miss Madison of Madison, Ind.; Shakey's Special of Seattle; Valu Mart U16 of Seattle; Notre Dame of Seattle, and Mr. Fabricator of Carrollton, Ohio.
Three other boats were in the pits Friday but failed to qualify. They will get another chance Saturday. They are Miss U.S. of Detroit, the Valu Mart U21, and Murphy's Marina of Seattle.
Two other boats, both named Red Man in honor of the chewing tobacco that sponsors them, are reportedly en route to the Gold Cup site. Their appearance would bring the field to 15, the largest Gold Cup fleet since 1967, long time hydro enthusiasts say.