Muffler test results, as tested by the Finnish V8 Magazine 8/95

			power/torque output		noise 
			compared to straight pipes
			power [hp]	torque	[lbft]	[dB(A)]		dimensions	weight	price
muffler			peak	ave	peak	ave	ave	idle	[cm, shape]	[kg]	[FIM]	
Martelius 600212	-0.9%	+0.4%	+0.2%	+0.7%	102.3	95.3	27*72 round	6.95	650	huge size!
Martelius 600211	-1.2%	+0.2%	-0.0%	+0.6%	107.1	94.4	?~16*60 round	4.00	400	
Apple Racing		-1.1%	 0.0%	+0.5%	+0.2%	104.9	91.2	16*57 round	4.65	600	
Dynomax Ultraflow	-1.3%	-0.2%	-0.4%	+0.1%	104.8	94.9	26*65 flat	6.35	845	twin tip = end only

Edelbrock RPM		-2.6%	-0.7%	-0.2%	-0.3%	104.3	95.1	23*48 flat	4.35	725	
Flowmaster		-2.1%	-0.8%	-0.2%	+0.2%	106.3	90.5	25*50 flat	6.05	1195	

Marlin Mellodrone	-2.0%	-2.3%	-1.3%	-2.6%	110.6	98.0	10*51 round	2.25	proto	
Supertrapp (12 disks)	-3.3%	-2.3%	-2.7%	-2.0%	106.7	93.9	12*48 round	3.00	1745	

Daytona Turbo (2.5")	-3.0%	-2.3%	-1.7%	-2.3%	96.4	87.3	25*46 flat	4.65	147	

straight pipes		0.0%	0.0%	0.0%	0.0%	-	-


Test engine: Chevy 454, 403.7hp@5000, 494.6lbft@3500 (twin straight 3" pipes)
All mufflers 3" except the Daytona Turbo.
Peak power was achieved at 5000rpm with all mufflers,
peak torque rpm varied between 3300-3500.
Average power and torque were taken from: 2500-5000rpm.
All measurements were repeated, quoted accuracy 1%.
Noise was measured 1 meter from tailpipe, 10 degrees upwards.
Noise average was taken from:	1000rpm (=idle), 2000rpm, 3000rpm, 4000rpm without load,
				3000rpm with 100hp load