Arctic Cat 400 DVX Exhaust Test Data
Testing done in 1/8th mile run.  Split time is at 1/16th mile.

• STOCK=stock pipe and jetting
• E/C=end-cap mod
• 2S/A=Black Magic pipe with 2 spark arrestors
• BM Silencer=final production Black Magic Pipe

	SPLIT	END	TIME--60mph	FEET/60MPH	PEAK MPH
STOCK	6.614 sec	15.58 sec	10.464	621.2	67.8
E/C	6.58 sec	15.45 sec	10.08	590.71	68.48
2S/A	6.586 sec	15.41 sec	10.24	602.6	68.78
BM Silencer	6.535 sec	15.39 sec	9.45	553	69.65

Would still be climbing at the gun, whereas stock and the end-cap would peak out about 75 to 100' before the gun.  Can lift the front end off the ground in 2nd.  Stock it would not.  This silencer rips!

135 Main jet.  (Stock is 130)

More testing was completed August 2nd 2007 comparing to Full System:

1/8th mile run on asphalt. Spit time is at approximately 1/16th mile.

	1/16th	END	Time--60mph	End Speed
Stock	6.614 sec	15.58 sec	10.464	67.8 mph
BM Silencer	6.535 sec	15.39 sec	10.284	69.65 mph
Full System	5.406 sec	13.858 sec	9.45	73.23 mph

This thing will lift the front end off in second on gravel. It is nuts!

 

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