Tow hitch mounting questions

[Coyote_ar]

Put the aux cooler before the radiator not after so it doesn't over cool the fluid.

I recently bought a 100% aluminium radiator, that doesnt have the heat exchanger. A while ago, a friend's 540i had a leak on the heat exchanger, and ruined his trans. I never liked that heat exchanger there, so i was planning on getting a big oil cooler and a thermostat. But so far i havent decided which one to get, and more importantly where to put it. I like those mounted parallel to the ground, with a fan to assist when slow on traffic. I guess doing all that stuff before hauling a trailer would be a nice idea.

This is the radiator i got, i never liked those plastic tanks on the OEM radiator. Seen to many fail on where you connect the hoses (mine is already half broken there).

Mine had threads, IIRC. But it has been years, will have to take a look and let you know. I had to source fasteners though, am pretty sure they were M8 or M10 and I remember buying high tensile ones. I doubt they were necessary. Once added, the rear-end drops about 6mm (and the front rises). I added a 10mm Delrin spacer) to the spring perch, but a stiffer spring is fine too.

Nice, i will check with those bolts once i clean the threads. My rear springs are already quite a bit taller and stiffer than regular suspension, since i installed a CNG tank in the back (plus i wanted a nice stance and a sportier ride).

This is the current stance, the rear springs are QUITE stiff, even with 2 people in the back, the suspension hardly drops.

PS: please ignore my broken rear bumper
i bumped it on a uneven street corner and it broke in half