NASCAR announced today that Greg Tester, crew chief of the No. 71 Chevrolet driven by Ron Young in the NASCAR Busch Series, has been fined and penalized due to rule violations at Michigan International Speedway.

Tester was fined $5,000 and placed on probation until December 31, 2007, for violating Sections 12-4-A (actions detrimental to stock car racing), 12-4-Q (car, car parts, components and/or equipment used that do not conform to NASCAR rules) and 20A - 5.9D (4) (unapproved intake manifold modifications to the plenum area) of the 2007 NASCAR Busch Series Rule Book.

The infraction was discovered during opening day inspection on August 17.

SOURCE: NASCAR Communications