Haha why would you not get the Bosch ones?

 

Because OEM is the same price? Why not get OEM if they're the same price? You should look at the post above yours for proof that they're the same price. Now if Bosch were cheaper than Denso by like $40 or $50 then I would consider switching. Even at a difference of $20 it isn't worth going aftermarket over OEM especially on plugs that should last more than 100k miles.

From the Infiniti G35 2007-2008 FSM manual:

 

I'm just wondering what you think will happen if he gets Bosch spark plugs vs stock? Bosch has been making spark plugs for 60yrs longer than ngk or Denso. Not that there's anything wrong with them, but there's no reason to steer him away from Bosch either.

Either way, OEM means nothing to me when it comes to parts. When a company like Bosch or say magnaflow or SPC makes an aftermarket part they literally focus all their time, money, effort and research to make one (respective) thing very very well. That's why we buy aftermarket parts. Bosch pretty much only makes spark plugs. If Bosch made tires I wouldn't buy them, but I would absolutely buy their plugs after using them for many applications and knowing their reputation.

 

If that's what you want, you can defend your decision. Bosch can be totally fine in our cars, but Infiniti designed the engine using spark plugs with specific gap lengths from specific OEM's.

You can always go aftermarket but there's a reason why they're almost always cheaper than OEM. They either cut corners in manufacturing or they don't have to put as much money into research and development or their parts are compatible with multiple vehicles. They may be fine for our cars, but that's not the point I was making. We are NOT talking about aftermarket performance upgrades, but rather aftermarket OEM replacements here. There's a big difference between the two. Your magnaflow and SPC parts are aftermarket performance upgrade parts, which is an entirely different conversation. A better comparison would be things like OEM headlights vs. aftermarket headlights, or OEM body panels vs. aftermarket body panels, OEM windshield vs. aftermarket windshield, etc.

Bosch doesn't just make spark plugs. They make batteries, wipers, oil filters and other automotive parts. Most of the time, people do go aftermarket because it is cheaper. Given a choice between OEM and aftermarket with the same price, people would usually pick the OEM part.

The only things I would consider not going OEM in terms of maintenance are the tires and motor oil changes in this car even if they are given the same price as non-OEM. However, with maintenance, I would almost always choose OEM over aftermarket if they are indeed the same price.

My point is that generally speaking, cheap parts = cheap performance and not as long lasting. If your Bosch's are fully priced at $50, and Denso's are $72 but discounted to $50, which one is a better and more logical deal? Dealers would even charge more than twice this for the same part. Plus the car has been tested way past 100k miles using Denso OEM plugs, so you can be sure I would be more likely to choose them.

 

I know they make those other products to remain competitive in the market and to use their established brand to capitalize in the maintenance world as completely as possible, but that doesn't change the fact that they've been making spark plugs for over 100 years. Yes, I would rather get good year wipers because all their research goes into making great and innovative products from rubbers. They invented rubber. Boschs reputation speaks for itself. It's not as if I would tell anyone to buy autolite plugs...or a Hyundai car. Haha

But you're missing one aspect of price as well. There is a huge weight put on marketing and supply and demand. Bosch is not huge in the import world so there is low demand. They must be competitive if they want to thrive. I feel like a lot of people get into d!ck swinging contests over brands because of something someone told them or because one has a better logo or one is for imports and ones for domestics or whatever. All I'm saying is that Bosch is a very established company who has been around for a long time and spent a lot of money on research and development for spark plugs. They can't continue that legacy by selling shitty parts. No one should have any qualms over buying their spark plugs rather than OEM.

 

That's why I said Bosch may be fine for our cars, but if OEM costs the same price, why not go with OEM?

Our cars have lasted well past 100k miles on these plugs, and if they cost the same as aftermarket, why not?

To be honest, I've tried Bosch Icon wipers on my car. They don't last nearly as long as OEM, and they start streaking much quicker. On my Lexus, I've tried Rain-X Latitude wipers, which would never wipe away at the curved edges of my windshield. In the end, OEM wipers, in my case, are the best ones for the cars I have driven in my experience.

 

Could be something as simple as ease of obtaining as far as I'm concerned. If there's an AutoZone around the corner and my closest advanced is 30 mins away, I'm goin to AutoZone.

I live in San Diego, so I can't really speak for wiper blades. But if I want rubber products, Goodyear would most likely be a good choice.

 

Is there a walk through on how to change the plugs?

 

YouTube

 

Look in the Infiniti FSM. You can search for it online easily.