MSD8239 Ignition Coil, Red, Individual

This coil replaced my OEM coil at 88k miles. This coil is originally a drop in replacement for Dodge Neon's however, due to the Chrysler based Tritec Motor in the R50 and R53 MINI cooper's, this coil will also fit.Note, the bolt holes for this coil DO NOT fit the MINI's factory coil's bolts. No big deal, this is much publicized around the net and I was aware of this problem before purchasing. There are 2 ways around this issue.#1 Replace the bolts. I did not choose this route as the stock bolts have a metal cylinder sleeve with rubber bushings at the top and bottom of the coil to reduce vibration and increase longevity of the coil. These also help to prevent the coil's bolts from being overtorqued. Others that simply replace the bolts with standard bolts lose this sleeve and bushings and therefore have to worry about stripping out the valve cover threads, cracking the valve cover due to overtorquing, or having issues from the bolts being inserted too deep into the valve cover's threaded studs.I chose option #2, drill out the holes of the MSD coil to enlarge them to factory size. This was quite simple actually. The pressed in sleeves on the MSD coil I believe are aluminum, at least it seemed that way because they cut quite easily with standard drill bits. I simply removed the OEM coil and figured out what size drill bit was required (I don't remember now). Then put the MSD coil on the drill press and gradually increased the drill bit sizes incrementally until the bolt holes were large enough to accept the factory bolts. This is honestly an easy route to go and then you get to reuse the factory bolts and know that the factory torque spec will work for properly securing the coil without damaging the valve cover.My main reason for replacing the coil was due to high mileage with a slight 'miss' on idle. The number 3 terminal of the OEM coil corrodes and this rust and corrosion will build up on the coil and the spark plug wire connector as well. I could've replaced with another coil but why when the MSD is both cheaper and an improvement. True both produce the same output voltage, however MSD has brass terminals which will not corrode and rust like the OEM coil. Because of this I chose the MSD. The red color also accents the Engine bay and dresses it up quite nicely.

The media could not be loaded. I ordered 3 things for my Mini 05 R53 tune up...this msd coil box, new NGK wires n platinum plugs. They came at different times but I was so excited to see if they stop the lag I was getting in second gear...Received the coil box 1st placed it on per instructions..took a test drive...lag was gone..later that day the wires and plugs came..put them on and another test drive was unbelievable...for the posters stating there was no difference..something else must be wrong because these 3 components have my 05 Mini S R53 riding like it's off the line with 129k miles on her!

you have to drill out the metal sleeves to use the stock Mini Cooper bolts. Not a big deal, if you have the good size drill bit and 5 minutes to spare! Definitely worth the money, my non-S 2006 runs smoother at the low end and has better power in the mid-range. I had already upgraded the cables and plugs, so I can tell this coil made a difference.

I read a bunch of reviews about these not working. False. It does. People don't do their research and just though this on. You HAVE to upgrade the grounding / mounting bolts with stainless. The stock bolts can impede grounding if it has a zinc coating or grease on them. Tap out the hole to clean them and make sure you torque them to spec too. Also I would suggest upgrading the wires to 8mm-10mm wire so it works more efficiently.

Replacing the old coil with this MSD coil on my Neon was definitely worth it. I have noticed a smoother idle and a little better gas mileage. And it wasnt hard to do either, it just takes a little bit to take out the bolts. I also noticed my car starts right up every time too. I also have MSD wires and NGK spark plugs, which make having the coil so much more worth it. It was well worth the $80 and I look forward to keep buying parts from MSD.

Great replacement for the Mini Cooper S.My OEM coil pack began to create residue on the 3rd terminal. This MSD replacement was actually better.My car idles, starts, and accelerates smoother and better.BEWARE: I DID NOT PASS SMOG IN CALIFORNIA ( VISUAL INSPECTION WAS FAILED). Just used my OEM pack to pass and then replaced it back to the MSD.When buying this product, you CAN NOT use the oem bolts, you must order aftermarket ones.

I replaced these components at 125K miles. The increased throttle response made me drive like a maniac, then POP -- engine light and car went into limp mode. I was too lazy to go buy a $1.50 pack of dielectric grease. Don't make the same mistake.To Non-believers: sparks are created by arc(s) between the +/- electrodes. Let's ignore the copper vs platinum vs iridium spark plugs and the number of electrodes. The strength of an arc is dependent on the voltage supplied by the coil, and the conductivity of the ignition and sparkplugs which deteriorate over time. Keeping everything constant, the strength of an arc is dependent on the Kv supplied by the ignition coil (Kv of OEM vs Kv of aftermarket). The bigger the arc, the faster and more complete the A/F mixture burns (more power and faster throttle response), the better fuel economy (complete combustion & less carbon build up). Most people will not notice the difference with a coil upgrade. Try replacing all the ignition components and tell me how it feels. Just don't forget the dielectric grease. LOL.

Was having some issues with my 2005 Dodge Neon SXT - misfires, rough idle, hard starts. So, decided to do a little tune up to possibly fix it. Got the MSD 8239 ignition coil, MSD 32729 spark plug wires, and some Bosch (4501) FGR8DQI platinum IR fusion spark plugs. And sure enough my idle has significantly decreased (use to shake my entire car), stars one the first or second crank, and no more misfire codes.