# Quiet 3" Exhaust ?

**URL:** <https://forums.speedlife.net/t/quiet-3-exhaust/252735>\
**Category:** Shift518 Off Topic\
**Created:** [June 16, 2010, 5:15pm UTC](https://forums.speedlife.net/t/quiet-3-exhaust/252735 "2010-06-16T17:15:03Z")\
**Posts on this page:** 1\
**Showing post:** 31

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**Author:** ![DUKE\_LADUKE](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/duke_laduke/32/6317_2.png) [@DUKE\_LADUKE](https://forums.speedlife.net/u/DUKE_LADUKE)\
**Post date:** [June 16, 2010, 8:27pm UTC](https://forums.speedlife.net/t/quiet-3-exhaust/252735/31 "2010-06-16T20:27:17Z")

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> [@Who wants to race the R1?](https://forums.speedlife.net/t/who-wants-to-race-the-r1/32719/37):
>
> laduke, dynomax came out with this trick new muffler… its got this valve inside it as velocity increases the valve opens, but cruising its silent… like stock, a few evo guys have tried it and they actually picked up a couple hp…
> 
> lemme find you the thread on evom
> 
> [Project Valve Technology Muffler - EvolutionM - Mitsubishi Lancer and Lancer Evolution Community](http://forums.evolutionm.net/evo-engine-turbo-drivetrain/493903-project-valve-technology-muffler.html)
> 
> if i wasn’t so in love with my BR exhaust i’d replace the muffler with this haha

Just ordered this tonight … see how it will work out

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