Exhaust is too loud . . . back to standard???

Discussion in 'Mechanical - Engine, Gearbox, Exhaust etc' started by richmeg, May 21, 2015.

  1. Hey,

    I have a 3" decat with Ktec 3" exhaust and its just too loud for me now . . .

    Thinking to swap for a different quieter aftermarket or even going back to standard.

    How restrictive is the standard exhaust because on last dyno engine produced 300bhp with Stage 2 mods.

    Going to leave the de-cat but was hoping to switch to standard exhaust and keep same power.

    Any thoughts?
     
  2. What I remember reading was that the standard exhaust is good for about 290bhp, IIRC that was with a decat
     
  3. Daz

    Daz

    I'd keep the exhaust and drop to a sports cat or a standard cat - afaik it's the decat that makes most of the noise..
     
  4. Cheers James . . . yeah I vaguely remember reading that as well . . .
     
  5. But its also the decat which makes most of the power (-;

    Too much labour time to swap the decat as well thats why I'm going the exhaust route to make it quieter . . .
     
  6. Daz

    Daz

    Then you're stuck with the noise - the 3" exhaust is regarded to be very comfortable noise wise.

    Ultimately if you want it quieter you'll need to lose some power.
     
  7. The milltek 2.75" is a quieter system. When I had my R26 I had the decat and the ktec system with the smaller box and that was too much.

    I swapped the rear box for the newer milltek one and the difference was night and day, a perfect blend of bass and noise when on the gas but it never droned or was too loud.

    Power wise she was running around 295bhp so was no slouch.
     
  8. I have a miltek system and mines too quite want it louder
     
  9. What about putting a small silencer after the decat pipe? should reduce drone at least
     
  10. winwin, swap straight over and both will be happy!

    even a 2,5" system should be sufficient till 300+
     
  11. I'd do that but it's a long drive to each other
     
  12. Put a small silencer in rich as already mentioned?

    gavrook - decat sounds incredible on miltek system i ran it on my old cup as miltek system way to quiet as standard. Obviously would need friendly mot tester though
     
  13. Yeah I need decat think I'm going to try that first
     
  14. Yeah its an option . . .

    Although I was thinking about selling it sometime this year and going back to standard would prob make it easier to shift.

    Plus I could claw back some money on the Ktec system . . . so perhaps anyone who is looking to upgrade and is handy with a set of spanners (-:

    Just don't want to upset the map or lose too much power for Summer months.
     
  15. I know what ya mean I been in two minds if to cut the remaining box out my miltek or just buy a decat but the decats are a far bit of cash for what they are so might just wait for a good 2nd hand one.
     
  16. how come you might be selling it mate or just fancy a change?
     
  17. there was one that just went on ebay for £100 absolute bargain but he wanted collection only and didnt want to travel. Someone got a bargain
     
  18. Yeah fancy a change . . . its not ideal for a daily really especially with the exhaust noise and lairy colour!

    I only paid about £130 for my de-cat, got it from a guy called Mark Yates, he was working with Scorpion, can't find the link but have his email if interested.

    Although most money is in the labour time as its a 4-5 hr job I believe.
     

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