Honda CBR 250 Forum banner

Gutted Cat

5435 Views 17 Replies 13 Participants Last post by  spdklls
I just wanted to post it up in case anyone else would be curious in the future. I gutted the cat on the stock pipe today using a 1" spade drill bit. It had that hard, more metallic material that was difficult to remove.

Difference in sound is hardly noticeable. I really cant hear any difference. So no worries in that department. butt dyno approves, however I am sure there isnt a difference in reality. good mod considering its free, cant really think of any foreseeable negatives, and pretty darn easy to do on the bike.


- Neal
1 - 4 of 18 Posts
to gutt the exhaust is quite a popular mod here in thailand.
it adds a wee bit of power and usuallly makes the bike a bit louder too(not much). we had a stock cbr and one gutted cbr and the gutted one was a bit hotter:)
it sure helps to keep the coppers away....
enjoy the ride
@ cbrdave
almost all mods hamper with the street legality of the bike - nothing new there.
we modders are some naughty boyz, however hard mom tried. are you a cop or what?
this world aint gonna end because someone gutts his cbr250 cat and you know it´s bs. take the cbr instead of your car and you do start to make a little difference.
happy riding
i´ve googled gutted cat - shocking...
you´re right about the "mods" mike lol

who says there´s no gain in taking the cat out? i say there is! we tested it with two identical cbr´s (one gutted....)
the gain is usually around 10% in cars and motorcycles
and it keeps the cops away from you:).
the people that make/enforce the laws are always more obsessed with them, then those who have to abide them.

yeah that´s true dave. why would anyone care for others now...
1 - 4 of 18 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.