exhaust????????????

Discussion in '2.0: LNF' started by tooo_much_fun, Jul 25, 2010.

  1. tooo_much_fun

    tooo_much_fun Junior Member

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    Okay guys. I am just getting into tuners and need some help. I just got my 09 cobalt ss and would like and exhaust, but have found most of the cat backs are in the 600-700 range. I have found a few mufflers that I would like to try on it that would all be much cheaper. Most are under 100. I looked and it looks like the cobalt already has stainless piping so how well would just replacing the muffle for a much higher flow work, or should I just save up for the full 3" catback?
     
  2. cobalt123

    cobalt123 Platinum Member

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    save up for full exhaust Modern Performance are not too bad
     
  3. YelloEye

    YelloEye Super Moderator Staff Member

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    The 09 ss/tc already has a ~2.8 OD exhaust with good bends, the resonator and muffler are both straight thru designs, you wanna improve the performance or sound? get a downpipe with a highflow cat or :gasp: no cat.
     
  4. tooo_much_fun

    tooo_much_fun Junior Member

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    I just looked at another post on here and I'm going to go with the new down pipe. Wow is that thing restrictive!!!!! I am looking for both sound and performance, looks wouldnt hurt either but not high on the list for me. Thanks for the reply.
     
  5. YelloEye

    YelloEye Super Moderator Staff Member

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    Like I said, the stock exhaust is all you're gonna need for anything really, till you swap turbos or dislike the sound with a different downpipe.
     
  6. tooo_much_fun

    tooo_much_fun Junior Member

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    ok thanks. Changing the down pipe will help with faster spool up right?
     
  7. YelloEye

    YelloEye Super Moderator Staff Member

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    Yes, the less back pressure you have the better the turbo breathes. Side note on that, it has been told to me that adding a switchable cutout will make the exhaust more turbulent so you can actually lose 20-50HP when it is open. Supposedly this has happened on 5 different cars on the dyno. I havent seen sheets for this but it does stand to reason.
     
  8. tooo_much_fun

    tooo_much_fun Junior Member

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    I wouldn't run switchable anyways. I would get in way too much trouble. I live in base housing and in a military town and the cops around here such and are on the look out for tuners.
     
  9. Lnf0995

    Lnf0995 Junior Member

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    Hello guys , am new to cobalt scence i have a 09 turbocharged sedan , & i have to buy a new donw pipe & exuast system ( missing , car was bought from a local auction missing parts ) what you guys recommend? Am trying to launch for +300whp soon , by upgrading lil by lil .
     
  10. YelloEye

    YelloEye Super Moderator Staff Member

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    ZZP has nice exhaust bits.
     

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