And good Jake Brake sound track
Yep... Back in 1947-1948 (as a HS freshman), got the same sound effect after I brazed a 10-ft x 1.5-inch plumbing pipe to the exhaust manifold pipe of my 1935 Ford...
Jakes hadn't been devised then... Could have used something like that driving with mechanical brakes in the New England hills...
IAC, Jake brake orgasm...