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Delco Remy and Microphonics Team Up With ISM Racing for Indy 500

28 May 1999

Delco Remy and Microphonics Team Up With ISM Racing for Indy 500
    INDIANAPOLIS, May 27 -- Delco Remy International, Inc.
and Microphonics (OTC Bulletin Board: MRPS) have teamed with
Thermo Tech (OTC Bulletin Board: TTRIF) and Prolong (Amex: PRL) in sponsoring
ISM Racing and its driver Steve Knapp in the 83rd running of the Indianapolis
500.  ISM Racing is a wholly owned subsidiary of ISM Holding Corp.
(OTC Bulletin Board: ISMH).
    It is the second straight year that Delco Remy of Anderson, Indiana, has
sponsored Knapp and the ISM Racing team.  With the support of Delco Remy and
Microphonics, Knapp, last season's Indianapolis 500 Bank One Rookie of the
Year, qualified on the inside of Row Five (13th position) at an average speed
of 221.502 mph.  This year Knapp hopes to improve on his third-place finish in
auto racing's premiere event.  The purse for this year's Indianapolis 500 will
not be determined until the day after the race, but it is expected to top the
8-million-dollar-plus purse of 1998.
    Regarding the sponsorship, ISM Racing president Bob Hancher stated, "We
are extremely pleased that Delco Remy and Microphonics are joining our effort
along with Prolong and Thermo Tech.  We will do everything we can during the
race to pursue the top spot and make sure our sponsors all get maximum
exposure."
    Knapp agreed with Hancher, saying, "I'm very happy Delco Remy and
Microphonics have come through with their support.  I'm looking forward to
representing them in the race and I will do what I can to win the race, not
only for myself, but for them as well.  They have helped make this possible."
    Delco Remy designs, manufactures, remanufactures and distributes
electrical, powertrain/drivetrain and related components for automobiles and
light trucks, medium and heavy-duty trucks and other heavy-duty off-road
vehicles.  Delco Remy products include starter motors, alternators, traction
control systems, engines, transmissions, torque converters and fuel systems.
    Microphonics, founded in 1990 in Nashville, Tennessee, has developed a
high-tech mechanical ultrasound diagnostic device that detects the presence of
ultrasonic sound waves and translates those waves for the human ear.
According to Microphonics, this hand-held Ultraphonic Detector is so exact
that it can detect a hole half the thickness of a human hair.  It can pinpoint
and identify leaks, predict mechanical malfunctions and identify certain
electrical problems, thus warning of impending trouble before malfunction
occurs.
    ISM Holding's operations range from athlete management services for
several professional sports figures and the solicitation of sponsorships and
endorsements, to the ownership of automobile racing teams.  ISM owns and
operates several racing teams competing in both NASCAR and Indy Racing League
Teams.  The company generates the majority of revenues related to its racing
teams from sponsors, which pay from $50,000 to several million dollars for
various types of sponsorship.
    For more information contact Ken Severson at ISM Racing, 317-415-0035 or
317-865-8973.  You can also check out the ISM Website at http://www.ISMH.com.
    Statements regarding financial matters in this press release other than
historical facts are "forward-looking statements" within the meaning of
section 27 A of the Securities Act of 1933, Section 21 E of the Securities
Exchange Act of 1934, and as that term is defined in the Private Securities
Litigation Reform Act of 1995.  The company intends that such statements about
the company's future expectations, including future revenues and earnings, and
all other forward-looking statements be subject to the safe harbors created
thereby.  Since these statements (future operational results and sales)
involve risks and uncertainties and are subject to change at any time, the
company's actual results may differ materially from expected results.

    CONTACT:  Jack Rosenberg of M&A West, Inc., 650-588-2678, for ISMH
Investor Relations.