If I recall correctly the v6 comes with BR3 brakes, the RT with BR5, and the Cop Cars with BR9s. You could look into them

 

Ok that's a start, appreciate the info!

 

And with a search for 'Magnum BR5 upgrade' it looks like I have my answer (long as it's correct 😅)

I'll wait to see if anyone has any counter to this info before I order parts just in case.

Thanks for the tip man! New to this new car world heh

 

If you want to do the BR9 brake swap you need to drill out the mounting holes in the caliper brackets a bit. Not hard, but it's not obvious. They are the largest brakes you can fit into 18 inch wheels - the front calipers are only about the thickness of a bussiness card away from the inside of the wheel. If you have smaller than 18 inch wheels, the BR9 brakes won't fit. The rears are pretty large too; IIRC, the BR9 rear rotors are slightly larger than the SRT rear brakes, but the SRT fronts are much larger, too larger to fit inside of an 18 inch wheel.

I did the BR9 swap on my '05 Magnum and I like it, but I am looking into a master cylinder swap to improve the pedal feel a bit. My understanding is that the 2008 and up MC's had a slightly larger bore to move more fluid; the pedal feel in my '23 Challenger is much better than the Magnum ever was. I haven't done much research yet other than a cursory search and look over the catalog at RockAuto - it's still on the ever present list of projects to get to...

I have a list of part #'s for my BR9 swap around somewhere that I keep meaning to post as a guide. When I researched my BR9 swap I ended up referring to about 5 different posts to sort it all out. It was all thre, but a bit of a pain to find.

 

If you find that part number list for the rear that'd be great!

I did hear you have to largen the holes a bit. I'll have to see if there are pics or a video on this.

I have 20" Challenger wheels so should be OK there.

 

'05-'10 cars are plentiful in the u-pull-it yards near me.
For the money I'd go with the R/T, 300C front brakes.
Aluminum calipers, so much lighter than the cast iron BR9 stuff !
If you've got the solid rear discs, you can swap calipers, brackets, and rotors.
I believe the pads are the same ones you have now
Many yards have sales prices around holidays and prices are much lower!

 

Is that the BR6?

 

Found my old notes...

Here are the sales codes for the various brake packages:

• BR3 = Standard brakes
• BR4 = Brembo Brakes
• BR5 = Performance Brakes (RT)
• BR6 = Heavy Duty STP Brakes
• BR7 = Brembo Brakes – 6 piston calipers
• BR9 = Police Pursuit Brakes

Here are all of the part numbers I have for the BR9 brake swap onto my '05 Magnum RT:

Notes:

• As with any swap or customization like this, "caveat emptor" (buyer beware). Use common sense and be safe. If your brakes don't work, it's a life safety issue, and I want both you and your ride to be safe and stay around for a long time.
• All of my research was targeted at my '05 Magnum RT. This should apply as-is to any of the early LX cars, and much of it will apply to later cars, but check and be sure.
• If you are swapping from non-RT brakes, I think this is right, but have not confirmed the details.
• I included more part numbers than are strictly needed depending on what you buy. For example, I got calipers with caliper brackets, so didn't need the caliper brackets, but I listed the part numbers for the caliper brackets for future reference. This is why the Quantity field is 0 for a bunch of parts - the notes field should make this clear. Adjust as needed for what you opt to acquire or have on hand.
• I typically prefer OEM parts where possible, so most of the part numbers are for OEM, with aftermarket in a few places.
• If you look up parts in an OEM parts catalog, they will often list the sales code a part applies to. This is where the BR# codes are important to look for and confirm. Unfortunately, not all of the OEM parts websites will list this clearly, and a bunch used to and mno longer seem to do so, so compare around to see what you find. A dealer can often see more information in their version of the catalog, if you have a friendly local dealer parts counter person to talk to.
• I needed to drill out my '05 RT front caliper mounting bracket holes in the spindle to 14mm (9/16") to match BR9 caliper mounting bracket bolts. I'm not sure which year this changed, but it should be obvious if you poke at the parts catalogs a bit and look at your caliper bracket mounting bolts.
• In my case I was using a rear axle assembly out of a '20 Scat Pack and had to "swap down" to the non-SRT knuckles to get matching front and rear BR9 brakes, plus verify if the 2015 and up hubs would work correctly. If you already have non-SRT brakes and knuckles, you shouldn't need to do this.
• I have not included the master cylinder swap information as I haven't done it yet. If I do that swap, I'll post info about that.
• Picking the BR9's for me was not a case of "better or worse than" the Brembo's, it's a preference. I prefer more thermal mass in the brakes for street use vs reduced weight for ultimate performance/track use. If you've ever overheated your brakes and had them fade away on a long mountain pass, resulting in a pucker moment, you'll know why. Early 80's Datsun 200SX disc brakes are not vented and not sufficient for hard/prolonged use. Just FYI.
• Similar to the previous, I prefer reliability vs ultimate stopping power. I've seen too many stories of the Brembo's being fussy and needing attention, which led me to lean away from using them. I prefer to jump in and drive once a car project is done and on the road. We'll see how the Brembo's on my '23 Scat Pack hold up over time - they are both gorgeous and enormous, but I suspect my future brake jobs on that car are not going to be cheap.
• I wanted to stay with 18 inch wheels for a "sleeper" look, so the BR9 brakes were the largest I could get. i walso wanted to not have a "flashy" caliper, the understated BR9 calipers are perfect for what I wanted. If you have 20 inch (or larger) wheels, the SRT brakes are an option for you.

2005 Dodge Magnum RT BR9 Brake Swap
Qty	Part #	Vendor	Description	Notes
Front Brakes
0	68245117AA	Mopar	Front Caliper Brackets	Included w/ Raybestos calipers
0	68245116AA	Mopar	Front Caliper Slide Pins	Included w/ Raybestos calipers
0	6510302AA	Mopar	Splash Shield to Knuckle Bolts, 3 per side	Should be able to reuse 05 Magnum RT bolts
1	68217407AA	Mopar	Left Front Splash Shield	Different than non-BR9 brakes!
1	68217406AA	Mopar	Right Front Splash Shield	Different than non-BR9 brakes!
1	68245095AA	Mopar	Left Front Caliper	Raybestos FRC13028N includes bracket & pins
1	68245094AA	Mopar	Front Right Caliper	Raybestos FRC13027N includes bracket & pins
4	6510853AA	Mopar	Caliper Bracket to Knuckle Bolt (M14x1.50x45.00), 2 per side	05 Magnum RT part is 6505832AA (M12x1.75x45.00)
1	68245089AA	Mopar	Front Pads and Spring Clips	Power Stop Z26-1767 (Street Performance Carbon Fiber Ceramic Pads)
2	68184337AB	Mopar	Front Rotors - 370mm (14.56") diameter	Raybestos 781774PER (R-300 with wiggle slots)
1	68232484AA	Mopar	Front Left Brake Hose	Different than non-BR9 brakes!
1	68257661AA	Mopar	Front Right Brake Hose	Different than non-BR9 brakes!
Rear Brakes
0	68245123AB	Mopar	Rear Caliper Brackets	2 if needed - included w/ Cardone calipers
0	68245288AA	Mopar	Rear Caliper Slide Pins	2 if needed - included w/ Cardone calipers
0	4779451AH -> 04779451AJ	Mopar	Left Rear Brake Hose	1 if needed - should fit all 2005-current LX
0	4779450AF -> 04779450AH	Mopar	Right Rear Brake Hose	1 if needed - should fit all 2005-current LX
1	68089313AD	Mopar	Right Rear Knuckle	Fits BR3, BR5, or BR9 brakes. Only needed when swapping from BR4 or BR7 Brembo brakes. Uses same hub as Brembo brakes. Fits 2011-2022.
1	68089312AD	Mopar	Left Rear Knuckle
0	5181925AC	Mopar	Bearing and Hub	Fits all brakes and models, left or right. Fits 2015-2022. Only needed because of the 2020 rear axle.
1	5137619AA	Mopar	Left Parking Brake Backing Plate	Fits BR3, BR5, or BR9 brakes. Only needed when swapping from BR4 or BR7 Brembo brakes. Uses same hub as Brembo brakes. Fits 2005-2022 - same as Magnum part!
1	5137620AA	Mopar	Right Parking Brake Backing Plate
1	68245291AA	Mopar	Left Rear Caliper	Cardone 18B5510 includes bracket & pins (reman)
1	68245290AA	Mopar	Right Rear Caliper	Cardone 18B5511 includes bracket & pins (reman)
1	68245118AB	Mopar	Rear Pads and Clips	Power Stop Z26-1766 (Street Performance Carbon Fiber Ceramic Pads)
2	4779438AF	Mopar	Rear Rotors - 350mm (13.78") diameter	Raybestos 780395PER (R-300 with wiggle slots)
2	H14355	Raybestos	Low Frequency Noise Damper	Optional

 

Wow, thanks so much for that post!! So having an 05 with stock BR3 brakes I can delete a few things here. I think I know what I need now! Thanks again!

Quick question, why the two part # for the rear brake lines? Revised numbers so either will work?

 

Glad to help. I enjoy researching stuff like this for my rides.

Often older part numbers have been superseded with a new part with a new number. Sometimes the new part covers more models, sometimes it subtly changed, sometimes I think someone just wanted to mess around with the part number database for fun. I've seen some parts with four or more superseded part numbers, sometimes they update the last letter (A -> b, etc.) sometimes its a complete new number. Sometimes the catalog would list the old part number for my Magnum with a note about it being superseded, but a newer Charger would list the newer part number, allowing me to see the superseded part worked on newer cars. Or one site would list the old one and the other would note it was superseded. A parts catalog the size of "everything Mopar has produced in the last 40 years" can be a bit weird sometimes. Whatever the reason the part number got superseded, I found it handy to note this so I could search for the different part numbers when looking for parts.

There are a surprising number of new and good used OEM parts on eBay, for example, but what part number they list it with can be a crapshoot, especially if it's used and they list it with the part number on a sticker on the part. I'd search for whatever part numbers I found and see what came up. This matters more for electrical parts and such that will have clearly legible stickers on them for years vs. brake and suspension parts that will not typically have any stickers or tags on them. It also matters sometimes for new-old-stock some place was putting up for sale that had a sticker or tag on it because its never been installed and has been sitting on a shelf for years.