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justme1969 · 03-13-2014, 02:30 PM

my dirt bike on bottom end. exactly I cant guess what the sound pressure level difference is but Its just like my thumper engine sounds.

03-13-2014, 02:30 PM	#23 (permalink)
justme1969 Master EcoModder Join Date: Dec 2012 Location: ff Posts: 459 Thanks: 59 Thanked 39 Times in 31 Posts	sounds like ... my dirt bike on bottom end. exactly I cant guess what the sound pressure level difference is but Its just like my thumper engine sounds.