# Is it bad?

**URL:** <https://forums.speedlife.net/t/is-it-bad/41368>\
**Category:** NYSpeed Automotive\
**Created:** [January 6, 2008, 8:11pm UTC](https://forums.speedlife.net/t/is-it-bad/41368 "2008-01-06T20:11:33Z")\
**Posts on this page:** 1\
**Showing post:** 22

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**Author:** ![Dr.Stevil](https://avatars.discourse-cdn.com/v4/letter/d/da6949/32.png) [@Dr.Stevil](https://forums.speedlife.net/u/Dr.Stevil)\
**Post date:** [January 7, 2008, 8:01am UTC](https://forums.speedlife.net/t/is-it-bad/41368/22 "2008-01-07T08:01:06Z")

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> [@Willybeen](#):
>
> what about back pressure? etc etc… i know bikes without a muffler tend to not last very long… i know a bunch of people who pulled the stock muffler off of their 02 R1 and never tuned it since… one of them blew up within 5k miles, the other… well he bought an exhaust for it before putting 1000 miles on the setup

well, removing the muffler off of a bike probably reduces the scavenging effect quite drastically (along with back pressure) since the size of the exhaust is so small.

although, most Harleys you see on the road don’t have shit except straight pipes. Maybe it’s just a coincidence? Besides… if anything, it would probably just kill the torque… don’t see why/how it would really hurt it

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