[H4r0ld]

Hi all,

I daily drive a relatively stock 2019 2SS and maintenance calls for a spark plug and wires replacement. I've done as much research as I reasonably can and settled on:

Holley MSD 33829 Spark Plug Wires:
https://www.holley.com/products/igni...ts/parts/33829

And

NGK Iridium LTR5IX-114344 Spark Plugs:
https://www.amazon.com/NGK-LTR5IX-11.../dp/B001MU28F2






My question is, will there be any noticeable difference in upgrading to performance wires/plugs compared to OEM?

(I realize this is kind of a silly question but I'm not much of a car guy. More like a computer nerd trying to learn cars. )

[H4r0ld]

Also, is it advised to buy a gap checker and set a specific gap in the plugs or is out of the box gap okay?

[Jb54]

I think anytime you uprade components in the ignition system it's a ++ all the way around! When it comes to plug wires it's all about ohms(resistance). You chose wisely. MSG and NGK aretop brands. Just make sure the plugs are gapped to spec correctly before installing. I think you made some great selections. The combination will make a strong spark.

[chevybill]

To the OP,
How many miles have you accumulated that it's time for plugs and wires?

Amazon is calling that particular plug, a motorcycle plug.

[Spaceme1117]

Originally Posted by chevybill

To the OP,
How many miles have you accumulated that it's time for plugs and wires?

Amazon is calling that particular plug, a motorcycle plug.

That is the correct plug. I checked the parts finder on NGK's website.

Plug gap is supposed to be 0.040 for non-supercharged. And you should check the gap as it may not be correct out of the box.

NGK it top shelf.

[H4r0ld]

Yea, I saw that and verified on NGK's website. It doesn't let you link directly to the part though so I used Amazon's link:

https://ngksparkplugs.com/en/part-finder



I'm currently at 37,809 miles.

I just assumed it was about time but @chevybill, after your comment I checked the manual and it doesn't call for plugs and wires until 97,500 miles.

I'm really just doing maintenance for fun anyways.

It's currently sitting on jack stands with the wheels off. I'm doing some compounding & polishing getting ready to slap some ceramic coat on the body and wheels. It's at 20% oil life so I figure why not do the spark plugs and wires while I'm in there?

This is just a fun toy to mess with. I can't afford to buy all the racecar parts right away so I shoot for flawless show condition as much as possible in the meantime.

[Rock-It Man]

Originally Posted by chevybill

To the OP,
How many miles have you accumulated that it's time for plugs and wires?

Amazon is calling that particular plug, a motorcycle plug.

This.

You don't need new plugs and wires unless your car is ancient.

[H4r0ld]

Yea, I just assumed it was time. Cars used to require it around 30-40K miles but I guess the technology has improved.

[s346k]

Originally Posted by H4r0ld

Yea, I just assumed it was time. Cars used to require it around 30-40K miles but I guess the technology has improved.

cars have been on the 100k mile plug/wire interval for the last 20+ years.

there will be no noticeable difference in anything vs new stock parts. to each his own.

[Zaqwert6]

Plugs and wires? Get out of the time machine and enjoy your modern car.

For the record I put NGK and everything I own, nothing comes close.

[FarmerFran]

Originally Posted by H4r0ld

Also, is it advised to buy a gap checker and set a specific gap in the plugs or is out of the box gap okay?

Check the gap and get a decent one. I like the blades not the round thing.

[Petrol Head]

Cars ALL have AT MINIMUM 100,000 mile spark plug intervals today. Really for the last 25 years. In fact I’m certain the 4th Gen F-bodies had 105,000 spark plug intervals when they switched to the LS1 and 3800 in 1998.

Unless you’re driving 50,000 miles/year, you do not need new spark plugs now.

40k tuneups went out with carburetors

[He11bent]

I'd wait to 100k miles to change them, but if your going to do it anyway...



If you not a car guy, a few helpful recommendations from someone that has done his fair share of plugs\wires: use a hi temp anti seize compound on the threads prior to installing. You'll be happy you did when it's time for the next change and you'll never have to worry about a plug seizing or breaking off. Takeout one plug out at a time and dont let anything fall in that hole. If the plugs come with a crush washer put it on, then start threading it in with fingers (never with a ratchet or tool) to keep from cross threading. Then use a hand ratchet to finish it, never air or battery tools. Keep threading until it just bottoms out, then 1\2 turn and stop. If no crush washer. Use a torque wrench and tighten to spec.


For the wires, always change one wire at a time. Never take them all off at once.


Hope this helps.

[Camaro fanboy]

Originally Posted by s346k

cars have been on the 100k mile plug/wire interval for the last 20+ years.

there will be no noticeable difference in anything vs new stock parts. to each his own.

yep
spark plugs every 97 000 miles.