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Discussion Starter #1
I've finally installed the Joe Z exhaust on my 2008 ISF and I originally had the intake tube installed so it's the combo now. I was wondering whether I could leave the exhaust system as is and add the factory mufflers in order to reduce the sound. Don't get me wrong I absolutely love it but it will cause probs with the cops around here.
Your suggestions are appreciated.
 

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It quiets down after a little while. Mine was obnoxious at first now its barely noticeable at normal driving levels. Wide open however is a different story.
 

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Discussion Starter #3
so I've heard but the only problem is taking off from a traffic light even if your doing it slowly... will that obnoxious sound be gone at 2k rpm after the break in?
thanks for the info
 

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well its been a while, but at no point do i remember any specific rpm where there was an obnoxious sound, i just remember it generally being loud until it broke it. i would check for leaks, its possible something didnt get tightened up enough, especially at the front connection to the manifolds.
 

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Discussion Starter #5
thanks a lot doublexl. nonetheless i'd like to know if the stock mufflers can be installed on the joe z setup...
 

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you could also measure the ends of the tips and get universal exhaust silencers.. a few members have done that
 

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Discussion Starter #9
Appreciate the input... Well physically anything can be done with welding etc... but my concern is will it be compatible and will i still have HP gains compared to stock? I will wait till I finish my first 1000 miles and will make a decision then.

08 ISF: Joe Z exhaust, Joe Z intake, Full tints (light shade), Lexon roof spoiler and Eibach springs to be...
 
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