Smokem's Grand National with Flowmaster Super 44's
Flowmaster Super 44's installed to contrast with the Delta 40's
1987 Buick Grand National Accelerating
Driving a 1987 87 buick grand national 0-125 @ a 100 degrees outside. Can't wait to see after Dyno tuning and on a cool day. ( kombucha...not beer!) Very fast about 600 -650 hp horsepower @ 20 psi.
1987 Buick GNX
History and overview facts on the GNX