Not only the Skyline R34 had quite a bad engine sound in FM, but it also had an inaccurate car model since FM1.
Jeepers! This car has been inaccurate in two ways! but I heard FH5 made it sound like the one in 2 Fast 2 Furious with an exhaust sound upgrade!
And here’s GT7’s sound of it. Especially if the comparison video is already sent way earlier above. This video below shows different types of exhausts from Stock to upgraded.
Stock sound in GT Sport: