I looked around for a while to find a clear write-up on installing the Evo 8/9 Brembos on a 240 and couldn't find one that I thought was very straight forward so I figured I'd make my own when I did mine
Here is a comparison of Evo 8/9 vs 300zx calipers.
First off, I got a set of Brembos off a Evo 9. Came with the calipers, pads and rotors. Rotors are in eh shape so I'm either going to be buying new ones or having my buddy resurface them. Pads have some life on em so I'll keep em for now and the calipers are in decent shape until I want to powdercoat them.
First step is to jack the car up and remove your lug nuts and wheel.
Next step is to remove the 12mm nut on the back of the stock caliper that holds the brake line to the caliper. Watch out because there will be brake fluid in it and will run out of the line. I just threw a cup underneath to catch all of it. Next step after that is to remove the (2) 19mm bolts holding the caliper to the nuckle of the suspension. Once those are both off, the caliper will come off the rotor and the rotor will come off the hub. Here is a picture of where the bolts are on the back of the caliper.
The next thing I did was cut the dust shield for clearance of the new rotor. I started by cutting the 90 degree bend off...after that I cut the corners off so that I had even more clearnace and didnt need to worry about anything rubbing at all. Heres a picture of once I cut it all off and hit it was some sandpaper.
Heres also a picture of side to side comparison of size.
I than dropped off the rotors to the machine shop for a quick resurface and started to strip the calipers. I took some sandpaper to them to get them scuffed up and took off all the rough spots in them. I than hit them with a nice coat of filler primer. I let that flash over night and than applied some paint the next day. Finishing them off with brand new Brembo stickers off eBay! (I know their missing the "B" in the middle of the circle for some reason...) Here's some pictures.
I went with the Version 1 Evo 240sx Brembo brackets off of MadParts.net. They ran me $100 shipped. The installation was very easy from this point on. The bracket attached to the caliper with 2 bolts which I put some Lock-Tite on and torqued down. Than I slide the rotor on, put a lug nut on to hold it in place and set the caliper in place. 2 more bolts with some Lock-Tite slide through the OEM knuckle and thread into the adapter bracket. Then torque them down, bleed the calipers and your all set to go ! Here's a picture of the completed product!