Bosch 4C Coils are the bees knees!

[fierostetz]

This is a clone of a reply I posted on the FT forum, but figured it might be helpful here.

I received my coils and immediately installed them (last night). Since I'm running an RRM intake at the moment I had no airbox so installing all four took about 20 minutes. I took the opportunity to reset the ECU while I was at it. First-start, it fired right up and purred smoothly - no unsteady burbling (I kinda miss it, but it sounds SMOOTH). Took it around town gradually increasing the amount of throttle used. After about 10 miles of farting around I gave it some throttle... Since I bought the car it's kinda fallen on its face with a stumble around 5300-5500rpm - no more! I can still feel power drop somewhere in there, but it's not like hitting a wall. I've got a 2016, GFB DV+, RRM Tallini 2.0 intake, and now, 4C coils. Another thing I noticed is that everything feels "lighter" when blipping the throttle to rev match downshifts. Before I'd had to adjust my driving style because it took almost twice as long for the revs to come up as it did in my previous car - now it revs right up, even tossing in a pop or crackle now and again. I'm back to popping more, and there's constant push while accelerating rather than feeling like acceleration comes in "stages". It's been a nice improvement in drive-ability. 10/10, would purchase again.

Sidebar - once installed, you'd never know just from looking that they weren't stock, which I like. I'd mark 'em though, so they don't disappear at a dealership when in for service. lil' paint dot or something.

Once my hand is out of it's brace and I can do some more involved work, I need to hunt down boost leaks. I was able to do the coils one handed but after looking at what's involved with tightening the intercooler clamps, etc. I don't think I can hack it without both hands :P

FWIW, my habit of looping dental floss through parts/bits while doing installs really paid off, my 10mm socket leapt off my ratchet, the standoffs for my intake tried to jump to freedom, etc. All of them safely tethered to the hood latch with minty fresh dental floss

[DeSoulo]

Sounds like a Great upgrade, do you have a part number?

[fierostetz]

I found them at these three vendors:

Madness ($349), fiattech ($249), and Eurocompulsion ($299) all have them. I went with FT, it was a bit cheaper that way - I try to spread my money across all the vendors. I'm at work so I don't have the exact bosch part number in front of me. If you order from a dealership they were charging ~80-110/each

[TheGodfather]

Thanks for the review. I was wondering about this coil pack upgrade compared to the much more expensive Okada versions. I might give these 4C coils a shot.

[fierostetz]

Yeah - I was on the fence, but I kept getting a total drop of all power at 5300-5500, even when I was bone stock. I just figured it was part of the car, as was a little gurgling and popping at idle. New coils - it's all gone. Cold start isn't nearly as mean, but backing out of my really long driveway at low speed is a lot smoother, so it's a net improvement. I'd like to eventually get a piggyback, so I figured I'd lay the groundwork now. I was pleasantly surprised by the driveability improvements.

[TheGodfather]

I just ordered a set.

[Michael T]

Does Madness jack up their prices on everything?

[Trunkout]

Does Madness jack up their prices on everything?

Possibly... but their customer service is flawless. Good trade off. I always use them FIRST.

[MADNESSJoseph]

Does Madness jack up their prices on everything?

Hello Michael, In regards to your question I wanted to address this directly if I may.

Specifically for the product that has been discussed on this thread (Coil Packs by Bosch) we actually used to pay a higher price on them due to the supplier we were using. At times we honestly have no control over what we get charged. After several months of trying to source other options we were eventually able to source them from another supplier outside of California and were able to reduce pricing substantially which is now reflected on our site.

Our price is now only $289.99 which is the lowest in the U.S. Keep in mind that on this specific product we also include FREE SHIPPING to anywhere in the continental U.S!!!!

Our goal is to always offer the lowest price guarantee on everything we provide so if you ever see the same item for less somewhere else simply reach out to us and we'll always do our very best to match or beat that price shown whenever possible!

If you ever have any questions or need assistance with pricing etc feel free to reach out to me personally jreyes@madnessautoworks.com and I'll be more than happy to assist you.

***Didn't mean to hijack this thread, I just wanted to address a question that was being asked about our company***

Thank you,

Joseph
Sales Manager
MADNESS Autoworks

Possibly... but their customer service is flawless. Good trade off. I always use them FIRST.

Really appreciate the kind words my friend and I hope life is good on your side!

[fierostetz]

Sweet! I can't edit my old post where I had the prices to update them :|