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Side effects of chopping cans

Started by hackers2r, April 28, 2010, 10:40:23 AM

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hackers2r

April 28, 2010, 10:40:23 AM
Getting ready to finally chop about 4 inches off my full Arrow system and have a couple questions for the experts.  Will I lose considerable backpressure in chopping these cans?  So much that I will need to re-tune the ECU?  Theoretically, would it actually hurt performance?  Thanks. 

Bike is an S2R 800 with full Arrow system, open airbox, and Nemesis ECU. 

ducrider45

#1
April 28, 2010, 12:10:49 PM
Not realy, if the utter is gone then there is not much left to restrict the gas flow. You should be fine. You could always Dyno the bike when you are done and remap if you need to.
Cop: "That thing is so nasty I can't bring myself to write you a ticket."

"The democracy will cease to exist when you take away from
those who are willing to work and give to those who would not."
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Washington D.C. area riders check out CAM on the local boards.

Oldfisti

#2
April 28, 2010, 12:11:15 PM
If you're not using the db killers there should be virtually no difference in backpressure due to the straight-thru design.
Quote from: Sinister on November 06, 2008, 12:47:21 PM
It's like I keep saying:  Those who would sacrifice a free range session for a giant beer, deserve neither free range time nor a giant beer.
Quote from: KnightofNi on November 10, 2009, 04:45:16 AM
i have had guys reach back and grab my crotch in an attempt to get around me. i'll either blow in their ear or ask them politely to let go of my wang.

jerryz

#3
April 29, 2010, 08:38:28 AM
Living in Thailand it gets very hot so I located the Rectifier on the S4 low at the front in the airflow and when it rained it blew very quickly  so the replacement is now back under the seat.
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