California models, Anyone change out the header?
#1
02-05-2009, 04:22 PM
Join Date: Apr 2006
Location: 310
Posts: 1,469
Likes: 0
Received 0 Likes
on
0 Posts
#3
02-05-2009, 05:23 PM
Outstanding HDF Member
Join Date: Feb 2008
Location: Sunland, CA
Posts: 2,706
Likes: 0
Received 0 Likes
on
0 Posts
#4
02-05-2009, 06:26 PM
The head pipes. CA versions have a honey-comb style catalytic converters in them. Apparently makes it so that the bikes meet the more-stringent CA EPA requirements. However, I don't know if they are detrimental to performance at all.
#6
02-05-2009, 11:06 PM
Modern catalytic converters add very little if any real restriction to exaust flow over all... some will say diffrent of course.
Take Care,
Bill G
#7
02-06-2009, 01:54 AM
Trending Topics
#8
02-06-2009, 07:53 PM
I can't say for sure that they are restrictive, but I have to ask myself if removing the cat version of the pipes might make it run cooler... The concept behind catalytic converters is that the platinum inside gets hot and burns off excess fuel before it leaves the pipe... Hence no cat no hot spot....like under my seat.... The cats on your car are the hottest part of you cars exhaust, stands to reason.... and a slightly free'r flow might be realized....