Replacing '09 California Header Question
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Road Captain
Joined: Nov 2007
Posts: 554
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From: SoCal
I don't think he was specifically talking about the 2010 SG and RG when he mentioned the heat benefit. Seems like he's talking about all the touring 2009-2010 models. Maybe I'll call them and see. Could be something to do with the pipe diameter and material?? Or maybe just BS 
Marc
Marc
The catalyst headpipes can run 100+ degrees hotter than the not catalyst headpipes. This is easily measured on both the surface temperature of the pipe as well as a comparison of EGT's. For reference our stock 2010 SG will turn the collector red hot in 1 full dyno pull, this is certainly not the case with our 09 bike.
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Jamie Long / Fuel Moto USA
The USA's Leader V-Twin EFI & Performance www.fuelmotousa.com
Contact 920-423-3309
Email jamie@fuelmotousa.com
Jamie Long / Fuel Moto USA
The USA's Leader V-Twin EFI & Performance www.fuelmotousa.com
Contact 920-423-3309
Email jamie@fuelmotousa.com
Thread Starter
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Road Captain
Joined: Nov 2007
Posts: 554
Likes: 0
From: SoCal
The '09 California model has the cat in the head pipe while the other 49 state bikes have the cat further down stream. As I understand it all the '10 bikes now have the cat in the headpipe. What Jamie confirmed is exactly what I was assuming, that removing the cat should reduce the amount of heat to the legs on the r/s. In that case it makes it worthwhile to do. On the other hand r8rs4lf drilled his out and didn't notice a reduction in heat. I would imagine if you didn't have lowers you might not notice any change. Unless I get stuck in traffic I really don't notice any great amount of heat without lowers. With lowers it's pretty hot once the air temp gets over about 80F or so. I think it might be worthwhile to swap the headpipe and see how it is. I can always put the cat pipe back if CA actually follows through on their threat to start smog checking bikes.
Marc
Marc
I do know that a lot of slip on mufflers are CARB compliant as long as you dont alter the head pipe's catalytic converter and O2 sensor placement. I have 2 CARB documents stating almost all Vance and Hines slip ons are emissions compliant as long as you don't alter the head pipe. Noise is a different story though. If anyone wants the PDF files just PM me and I will email them to you.
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I understand that, what I was trying to say is that one of the ramifications of replacing it with a non CAT head pipe is you will no longer be CARB or EPA compliment for emissions or smog if you prefer. You can however change the mufflers and still remain EPA/CARB emissions compliant. I have PDF flies from CARB proving that most Vance & Hines mufflers are still compliant as long as you use the stock head pipe.