# Really loud exhaust only on cold startup

**URL:** https://forums.speedlife.net/t/really-loud-exhaust-only-on-cold-startup/36240
**Category:** NYSpeed Automotive
**Created:** [October 1, 2007, 5:40am UTC](https://forums.speedlife.net/t/really-loud-exhaust-only-on-cold-startup/36240 "2007-10-01T05:40:24Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![brent\_strong](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/brent_strong/32/7203_2.png) [@brent\_strong](https://forums.speedlife.net/u/brent_strong)
#### Post date: [October 1, 2007, 5:58am UTC](https://forums.speedlife.net/t/really-loud-exhaust-only-on-cold-startup/36240/2 "2007-10-01T05:58:56Z")

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I’ve heard of cracked exhaust manifolds sealing themselves as they heat up…never saw it before though. Might be worth checking.

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