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I have experience deleting a cat in an old VW Golf when I was 17. It sounds obnoxious, it stinks, no power gains and makes you look like a tool. Unless your mini is a super boosted track only car-don't do it.
There are better, more legal things to do to a base model than to run a catless exhaust. Especially considering there are no gains to doing so until you have it tuned, and I can't think of any companies doing base Cooper reflashes.
I don't have any experience with a catless exhaust (yet) but I personally cut out my resonator and muffler delete. Its loud at times but other times it isn't. You just have to know how to drive to keep the sound down at certain times. Heres a vid I did last year with the exhaust
This vid too helps a little bit, if you skip to 1:40 then you can hear me open it up just a little bit, but then around 3:00 in the video it has some nice crackles coming out of the exhaust.
- OEM resonator replaced with Vibrant UltraQuiet Resonator
- OEM muffler replaced with glass fiber chamber
- Dual functional exhaust mod (there is 2 pipes)
- ECU reflashed (remap plus revs and speed limits deleted)
- K&N conical air filter intake mod
- Sport Button mod added
- Clucht replaced last month
I don't have any experience with a catless exhaust (yet) but I personally cut out my resonator and muffler delete. Its loud at times but other times it isn't. You just have to know how to drive to keep the sound down at certain times. Heres a vid I did last year with the exhaust MINI Cooper Non S straight pipe acceleration - YouTube
- OEM resonator replaced with Vibrant UltraQuiet Resonator
- OEM muffler replaced with glass fiber chamber
- Dual functional exhaust mod (there is 2 pipes)
- ECU reflashed (remap plus revs and speed limits deleted)
- K&N conical air filter intake mod
- Sport Button mod added
- Clucht replaced last month
What do you think about the cat delete?
Just think about the smell...modern cars STINK with no cat. What are you trying to get out of it? It already sounds nice.
I like Hondas. You can't beat their engine engineering. I knew a guy whose neighbor had a B18 swapped in a Mini. 180whp at 9k rpm in a car that weighs 1800lbs. It's so awesome it's scary.
I like Hondas. You can't beat their engine engineering. I knew a guy whose neighbor had a B18 swapped in a Mini. 180whp at 9k rpm in a car that weighs 1800lbs. It's so awesome it's scary.
Even he had a cat...
I understand what you mean, but I have a misconception of what people think of Hondas. Personally I have never owned one, will I? More than likely not due to seeing what my car did to a Nissan Altima at 15mph. Their engines are great, but I just personally always hear "Oh sh*t, watch out here comes a ricer" when in fact the guy is more than likely running a large 6266 Turbo and laying down some power. I strictly just did my straight pipe just for the fact of actually being able to hear the car. With that I'll leave my douchy comment quote "Loud pipes save lives" Tell your friend nice Austin Cooper. I was looking at the kits last night. Id love to color match a Austin to my MINI.
I understand what you mean, but I have a misconception of what people think of Hondas. Personally I have never owned one, will I? More than likely not due to seeing what my car did to a Nissan Altima at 15mph. Their engines are great, but I just personally always hear "Oh sh*t, watch out here comes a ricer" when in fact the guy is more than likely running a large 6266 Turbo and laying down some power. I strictly just did my straight pipe just for the fact of actually being able to hear the car. With that I'll leave my douchy comment quote "Loud pipes save lives" Tell your friend nice Austin Cooper. I was looking at the kits last night. Id love to color match a Austin to my MINI.
Different strokes for different folks. I was just saying that my comment about the sound of your car wasn't an insult haha. Sorry for misunderstanding. And yeah, Fast and Furious definitely ruined the Honda street cred.
By the way, how loud was your car when you just deleted the resonator? I want my car to sound a little louder, but I don't want it to be obnoxious...and I don't wanna blow the sound if I ever go back to Laguna Seca again.
Just think about the smell...modern cars STINK with no cat. What are you trying to get out of it? It already sounds nice.
No, the drone on the cabin was really bad. People and techs liked the sound but my head couldn't.
Video was taken before installing the Vibrant UQ resonator, after that, my life inside the cabin was peaceful again.
Why trying to delete the cat?
Less back pressure and better performance to the engine?
What's the function of the cat no related with emissions?
Deleting the catalytic converter is just going to turn your car into a gross polluter with a loud exhaust, and everyone who ever gets stuck behind you at a stoplight will hate you because your car will stink. Seriously, it's about 10x the pollution when you remove the cat.
The ECU has a target for how much air is going through the engine based on rpm, throttle position, etc. and adjusts fuel for the measured air mass flowing. Deleting the cat to reduce back pressure isn't going to do anything to add HP because the ECU isn't going to exceed the targets for air going in. Get a book on ECU tuning, really very enlightening.
Obviously you'll flunk any tailpipe emissions test and if you get busted for removing the cat you're subject to big fines. Though maybe with your location that isn't a concern.
If you want big HP, you bought the wrong car. Put your $ and effort into improving what makes the Mini so much fun to drive: the handling.
Deleting the catalytic converter is just going to turn your car into a gross polluter with a loud exhaust, and everyone who ever gets stuck behind you at a stoplight will hate you because your car will stink. Seriously, it's about 10x the pollution when you remove the cat.
The ECU has a target for how much air is going through the engine based on rpm, throttle position, etc. and adjusts fuel for the measured air mass flowing. Deleting the cat to reduce back pressure isn't going to do anything to add HP because the ECU isn't going to exceed the targets for air going in. Get a book on ECU tuning, really very enlightening.
Obviously you'll flunk any tailpipe emissions test and if you get busted for removing the cat you're subject to big fines. Though maybe with your location that isn't a concern.
If you want big HP, you bought the wrong car. Put your $ and effort into improving what makes the Mini so much fun to drive: the handling.
I'm not trying to get a "better" sound. I like the current car sound.
Not trying to get "big HP" either.
Forget for 5 minutes the emission test.
EDIT: The question is again: what's the PROS by deleting the cat?
Tell your friend nice Austin Cooper. I was looking at the kits last night. Id love to color match a Austin to my MINI. 
