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450R FMF 4.1 with Mega Bomb Header

This is a discussion on 450R FMF 4.1 with Mega Bomb Header within the Yamaha YFZ450/450R (2004-Present) forums, part of the Performance /Technical category; Well I decided to go different on the exhaust with my R. Haven't seen anyone yet run the FMF 4.1 with the mega bomb header. ...

		Yamaha ATV Forum - BlueTraxx.com > Performance /Technical > Yamaha YFZ450/450R (2004-Present)
450R FMF 4.1 with Mega Bomb Header

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02-09-2010, 02:11 AM	#1
Black 93 Fox Junior Member Join Date: Oct 2009 Posts: 9 (0)	450R FMF 4.1 with Mega Bomb Header Well I decided to go different on the exhaust with my R. Haven't seen anyone yet run the FMF 4.1 with the mega bomb header. I got everything in today put it on fits pretty good only issue the header bend is pretty close to the lower rad hose. Hopeing to get it dyno tuned this week see what the gain is since the last tune with the factory exhaust. __________________ 2009 YFZ450R SE Trinity, PCV, FMF 4.1, Mega Bomb Header Dyno Tuned by Led Performance

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02-09-2010, 11:00 AM	#2
Bowtie Primo Member Join Date: Dec 2008 Location: Chandler, AZ Posts: 1,727 (8)	Very cool, update us with the dyno results! __________________ 05' YFZ 450 00' Banshee 07'/06' YFZ 450 - Gone

02-11-2010, 09:34 PM	#3
Black 93 Fox Junior Member Join Date: Oct 2009 Posts: 9 (0)	Alright guys results are in ended up with 49 HP and 35 TQ. The graphs he gave me are not that good of quailty he gave me one and another in excel format. I'll post them both on here... Big Thanks to Arlan at Led Performance __________________ 2009 YFZ450R SE Trinity, PCV, FMF 4.1, Mega Bomb Header Dyno Tuned by Led Performance

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		Yamaha ATV Forum - BlueTraxx.com > Performance /Technical > Yamaha YFZ450/450R (2004-Present)
450R FMF 4.1 with Mega Bomb Header

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