Magnaflow exhaust manifold and convertor assembly
#1
Magnaflow exhaust manifold and convertor assembly
Hello everyone. I wanted to share something I just did. My 2008 Cooper N12 has 186000 miles on it and my oil filter adapter started leaking. I was going to replace it until I removed the upper exhaust manifold cover and discovered the manifold was cracked between the runners. I started looking at options and decided the OEM replacement from Magnaflow was a win at $660. I bought it and removed the old one only to discover something shocking. Our original manifolds are so restrictive in several ways. The first is that you could not fit a golf ball down into the cat. It is so small, it is crazy. Add to that 1 inch runners that are crushed down to 1/2 inch as it enters into the cat. Now to the Magnaflow unit. 1 1/2 inch runners that enter a giant collector like a header as full circles. The size of the collector portion is bigger than a tennis ball. I got everything back together and the improvements are incredible. First the idle has smoothed out to the point you do not feel the engine. Next the exhaust tone is much deeper. Lastly the car has more power and torque everywhere in the power range. It is incredibly stronger. I am now going to see if fuel mileage improves from its normal range. If you are looking for a power adder that all of us look for but never find, here is one for you. You will not be disappointed!
#2
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Ive's Mini- My catalytic converter has failed at 116000 miles and having read your post, I ordered the Magnaflow unit. My Mini is almost undriveable now but my Magnaflow still hasn't shipped two weeks after ordering... Did you have this kind of problem? Maybe due to it being a Canadian shipment? I will call their service line, but wondered how long yours took to arrive.
Do you still love it?
Do you still love it?
#3
Ive's Mini- My catalytic converter has failed at 116000 miles and having read your post, I ordered the Magnaflow unit. My Mini is almost undriveable now but my Magnaflow still hasn't shipped two weeks after ordering... Did you have this kind of problem? Maybe due to it being a Canadian shipment? I will call their service line, but wondered how long yours took to arrive.
Do you still love it?
Do you still love it?
Last edited by Ive's Mini; 06-19-2018 at 05:57 AM.
#6
The unit found in this link should be the correct part number for the gen 2 Non-s. https://www.hottexhaust.com/Magnaflow_553028 This is the california emission version which is the one I installed.
#7
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sanddan
All other MINI parts and items for Sale (archive)
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11-16-2006 07:41 AM