Upgraded intake and exhaust make a difference?
 

While thinking about upgrading 2 of the 3 things you can on a non-s engine :lol: my engineering brain kicked in and is making me question too much:
With these engines controlled by the computer so much, would adding a high flow intake and exhaust really make a difference? Wouldn't the computer automatically adjust the flow to original specs?

Neither an intake or header will make you more power, on a Cooper doing a header will actually make the car slower until you get to high revs.

An exhaust will free up some power, but the gains will be minimal.

Intake will make noise, but not much else... love mine :-)

Actually on the Non S the intake does make power. We did the dyno testing right after DDM came out with their non S intake and it showed an 8 ft lb torque gain at the front wheels. Ask other non S owners and they will tell you it does and makes a really cool sound.
http://www.waymotorworks.com/ddmwork...5-r56-r57.html

If it was a Cooper S I would tell you not to bother.

Can we see the dyno sheets?

There is also the K&N Typhoon system: Its a little louder / feedback then the closed box system. Estimated Horsepower Gain: 4.1 HP @ 5300 RPM from K&N. People have reported slight / marginal gain in gas mileage, but nothing major. : 692005TTK

https://www.ecstuning.com/Mini-2007-Cooper-R56-Base-Coupe-L4_1.6L_N12B16A/Engine/Intake/


https://cimg6.ibsrv.net/gimg/www.nor...03ee829f1c.jpg


https://cimg0.ibsrv.net/gimg/www.nor...a2a6e02c5d.jpg


https://cimg3.ibsrv.net/gimg/www.nor...db2efea234.jpg


Dyno sheet: http://www.knfilters.com/dynocharts/69-2005_dyno.pdf

Not a whole lot of gains on the Cooper.

The user Fatmatt had posted them as it was his car we did the testing on. I don't have a hard copy as he got it since he was the owner. But I was there and know for a fact it's true. He sold the car a year ago so I don't know if they exist anywhere else now.

We also offer it with a dry filter so no oil in the sensors.

I have the DDM, and by my seat-of-the-pants dyno it doesn't feel any quicker. Whether or not there's any real power gain doesn't matter to me, but the slight improvement in throttle response is nice. The stock engine noise wasn't loud enough for my taste, so the extra volume/better tone are worth installing the intake for me.

without tuning the ecu to take advantage of mods you're only going to get sound changes, making the intake or exhaust louder. Plus on a naturally aspirated vehicle an exhaust and intake won't do anything for power really unless you mess with internals to use the extra air and flow from mods. So go for it if you're looking to make your car stand out against all the normal minis, but don't expect a difference on the butt dyne because unless you're making a 10% difference in power you're not gonna feel it.

Do you have the dyno sheets. 8ft lbs is a lot per cent wise. I'm curious where that extra power comes in. I've seen dyno sheets where only only makes a difference in the last 500 rpm which, for me, isn't really worth it. If the gains are in the low and middle range, that's great for street driving.

I use to have it on the website but lost it when we changed servers. I hope I have it somewhere. But it is a lot of low end mid range. Most costumers report back that the throttle response improvement is the best part.