💥 Enhance Performance with MSD 6421 6AL-2 Ignition Control featuring a 2-Step Rev Limiter Review

love the output it puts out but no longer works Have 5 or 6 drives with it left me on the side of the road cost me more to haul home than goods have cost

Connected the box to the car, drove about 5 times maybe 2 hours total while the car was being set up and the box threw another msd box dead. Me installed them a lot, some work, some junk, I still have stuff 🤷‍♂️

It's been a few months now, noticeable spark performance is much better, at the same time I changed the spark plugs and wow. Also, the rev limiter works in turn every time, my car is shooting up flames now 😂 I recommend any msd product, but this 6al-2 is pretty cool, with its functionality I will definitely buy another one for my other car, the instructions were detailed , and show the schematics for many different settings. Happy with this product. Works every time you turn the key (knock…

MSD has been a technology leader for so long for one simple reason: They're the best. This system is fully customizable, displays real-time data and is compatible with many data collection clusters. Multi-spark technology has become even more advanced and you can take full advantage of your engine once installed. MSD technical support is excellent and quick to answer any questions you may have about your application. This standalone control box has many great features - an LED code system lets…

I love this box! I bought it for my 1994 Toyota MR2 2.0 NA along with an 8910EIS tachometer adapter and SS blaster coil. After installing it, my car immediately had a different feel - it (my car) started right away, started well and improved handling at all RPM ranges. At low revs it has more traction and is more responsive, and when I start it up (full throttle) it gets where it's going quicker. I've also noticed an improvement in fuel economy, even under extremely vigorous driving conditions.