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Cat or Catless Downpipe

  #1  
Old 04-15-2019, 11:44 AM
redlinealley
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Cat or Catless Downpipe

I have a 09 MCS for my DD. Wanted to install a CNT downpipe, but I dont know if I need a catless or Cat downpipe. Also do you gain any HP from doing this bolt on mod?

CNT RACING VERSION 3 MINI COOPER S R56 R55 R57 R60 R58 R59 CATLESS DOWNPIPE

 
  #2  
Old 04-15-2019, 01:31 PM
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No experience on performance, but cat is better for the environment, and catless is better for your wallet. Spend the money, buy the one with the cat, and maybe our children will still get to drive internal combustion engine cars.
 
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Old 04-15-2019, 04:21 PM
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Cat-less will help a little bit with performance, but you will get an engine light. Catted will keep the engine light off, but won’t give as much performance. Any downpipe other than stock will require an a ECU tune to get all the benefits of the additional flow potential.
 
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redlinealley (04-16-2019)
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Old 04-15-2019, 04:25 PM
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Originally Posted by redlinealley View Post
I have a 09 MCS for my DD. Wanted to install a CNT downpipe, but I dont know if I need a catless or Cat downpipe. Also do you gain any HP from doing this bolt on mod?

CNT RACING VERSION 3 MINI COOPER S R56 R55 R57 R60 R58 R59 CATLESS DOWNPIPE

I sell catless and they make the most power when tuned. Let me know if you need tuning to complement your new mods
40-100hp gains with tuning depending on supporting hardware

Mario

mQubed Motorsport Manic & RPM Power Tuning
 
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Old 04-15-2019, 05:55 PM
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Originally Posted by redlinealley View Post
I have a 09 MCS for my DD. Wanted to install a CNT downpipe, but I dont know if I need a catless or Cat downpipe. Also do you gain any HP from doing this bolt on mod?

CNT RACING VERSION 3 MINI COOPER S R56 R55 R57 R60 R58 R59 CATLESS DOWNPIPE

I bought the same one. It's now hanging in my garage as a reminder to spend money up front and buy quality first. The CNT was garbage, it didn't fit properly, leaked constantly and was poorly constructed. Mario's product is a world away from CNT. Do it right the first time 👍🏻
 
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Old 04-15-2019, 06:32 PM
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They will both give you power gains. The catted will tone down the sound a little though as I run the Akrapovic on my Clubman so I don't get drone on the highway. It is a perfect fit and has a 100cel high flow cat.
https://www.waymotorworks.com/akrapo...6-r57-r58.html

Afe is also making a quality catted DP now too
https://www.waymotorworks.com/afe-do...9-r60-r61.html

But for the catless I like the Milltek the best as the turbo flang and first 4 inches of the pipe are all cast as one piece to make it reliable and not have a weld on the flange.
https://www.waymotorworks.com/millte...-downpipe.html
 
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redlinealley (04-16-2019)
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Old 04-16-2019, 01:38 AM
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Thanks for all the input.. I will save more money and buy a catted downpipe. As I dont want a check engine light or drone. Thanks again!
 
  #8  
Old 04-16-2019, 02:51 AM
knt
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Catted downpipe will also be better for your lungs when you have the windows down.
 
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