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VF SV6 Catback

Discussion in 'VF Holden Commodore (2013 - 2017)' started by JSV6, Apr 5, 2020.

  1. JSV6

    JSV6 New Member

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    Hey guys,
    I want to know if I will lose power putting a 3” catback exhaust on my stock SV6. For those wondering, the brand of the 3” catback is Empire Performance. Advise that I am not going to do a tune after putting on the exhaust. I know slapping on an exhaust without a tune on my SV6 will not bring about much power if not any at all. However, I want to know if it will actually decrease power instead.
    Cheers.
     
  2. vr304

    vr304 Well-Known Member

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    Don’t know about decreasing power but a v6 with 3 inch system will sound like crap and drone too
     
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  3. blackve76

    blackve76 Well-Known Member

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    Don't your wasting money, just fit a std SS system
     
  4. JSV6

    JSV6 New Member

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    Is a standard SS system pretty much exactly the same as a standard SV6 system of the same model, but with the quad tip outlets on the rear mufflers?
     
  5. mpower

    mpower Well-Known Member

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    you will regret this.
     
  6. JSV6

    JSV6 New Member

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    Would you recommend getting aftermarket mufflers instead of a 3" catback taking in consideration that it is a V6. Would I be looking at aftermarket mufflers by OPG/Ultrex or like a simple straight through muffler delete. I know almost every aftermarket product will bring about drone but if it is minimal to moderate, then I am not overly fussed.
     
  7. JSV6

    JSV6 New Member

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    What about a catback system but 2.25" instead of 3", will that be better in regards to drone and overall sound? Same brand also made by Empire
     
  8. mpower

    mpower Well-Known Member

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  9. Milo 6.0

    Milo 6.0 Active Member

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    If it has a factory twin system the only real parts that will be restrictive will be the rear mufflers which are reverse flow and super restrictive(junk),if it has flex joints before the rear mufflers the id of the flex joint drops down to 40mm,most restrictive parts of the stock exhaust,i know the v8 exhaust has these issues,v6 is probably the same.
    If you are thinking of putting aftermarket rear mufflers onto the stock centre section just remove the rear mufflers and start it,thats how it will sound lol,maybe a tiny bit quieter with aftermarket mufflers,will make your skin crawl :D
     
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  10. rtmpgt

    rtmpgt Active Member

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    I have factory Maloo bimodals on my VE, sounds great and no drone (especially eince I got the actuators to work) . Not that loud though.

    A full GTS exhaust with functioning bimodals would sound pretty nice. No drone, and sound when you absolutely want it.
     
  11. MattSAU2XR8

    MattSAU2XR8 Active Member

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    If I wanted to spend maybe $800 on parts for a VF SV6 I think a better way to go would be a mild brake upgrade, eg. SH V8 rear calipers, V8 front caliper brackets, new discs (even DBA street series), and some good pads. This would make the car look and go a little better as opposed to just making it noisier... And if you waited till the brakes were due anyway it'd only really be the calipers and brackets that cost extra over the existing stuff.
     
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  12. abuch47

    abuch47 Active Member

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    **** the haters do it
     
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  13. rtmpgt

    rtmpgt Active Member

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    I did this to mine. Even with stock pads the difference is awesome. Reduced weight of the six, plus the bigger brake size = more stopping power from the get-go. Keep in mind you don't even need to swap the calipers themselves, just the brackets and the rotors. Although you'd be hard pressed to find a wrecker who's going to separate the brackets from the calipers. V8s have 325mm rotors vs the V6 285mm rotors.

    Will eventually swap to EBC YellowStuffs, DBA T2s and HEL lines at the end of this year.
     

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