NGK

1422 Spark Plugs Set of 4 (HKS M40XL Replacement)

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  • Regular price $95.00
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Always in stock

 

As good as HKS M40XL Spark Plugs IF NOT BETTER!

 

N75 Motorsports will NOT sell HKS M40XL due to this product being as good for less than half the cost, we do not feel it is fair for the customer to be "fooled" by brand names, we used to sell and stock M45XL as they are the cheapest available 9 heat range plug, however M40XL is 8 heat range, this is the same as these, we do not believe it is fair for a customer to spend over double for basically the exact same plug if not a worse one. NGK Plugs are the standard in the automotive industry for the last 25 years+, from ultra high performance exotic cars, to daily drivers, to fleet vehicles, you will find NGK from factory.

 

 

FREE GAPPING SERVICE! LET US KNOW WHAT GAP YOU WANT WHEN ORDERING IN COMMENTS AND WE WILL GAP THEM FOR YOU, IF NO SPEC IS ASKED FOR, .025 WILL BE GAPPED TO AS THIS GAP WE HAVE HAD NO ISSUES ON STOCK CARS OR STUFFED TURBO CARS.

 

PRICE IS FOR SET OF 4 

IN STOCK

 

Great OEM Replacement, some people run these plugs with tunes! They are very good replace plugs if not tuned. At N75 Motorsports we do not recommend these for a tune, however we see HKS M40XL as a waste of money, these are basically the same plug at less than half the cost!

 

 

  

NGK Laser Iridium Spark Plugs Are The Latest OE Spark Plug Design. They Feature a Laser Welded .8 mm Iridium Center Electrode Along w/ Laser Welded Platinum On The Ground Electrode Providing The Strongest Ignitability & The Longest Life Possible

  • NGK Laser Iridium Spark Plugs Are The Latest OE Spark Plug Design. They Feature a Laser Welded .8 mm Iridium Center Electrode Along w/ Laser Welded Platinum On The Ground Electrode Providing The Strongest Ignitability & The Longest Life Possible

Specifications

Spark Plug Hex Size 5/8 in.
Spark Plug Reach 26.5 mm
Spark Plug Seat Type Gasket
Spark Plug Thread Size 12 mm
UNSPSC 26101732

Customer Reviews

Based on 9 reviews
78%
(7)
11%
(1)
11%
(1)
0%
(0)
0%
(0)
C
Chris Billings
Mixed thoughts

Went in fine. Car is running hotter under normal freeway speeds by 15° and is only hitting 250 max TQ vs the previous 270-280

Thank you for bringing this to our attention. We apologize for any inconvenience you may have experienced. After reviewing the situation, it does not sound like the spark plugs are the issue. We suggest checking other components such as the thermostat or coolant levels to see if they may be causing the increase in temperature. Please feel free to contact us for further assistance. Thank you.

E
Emily Neider

10/10 plus they gave me free airheads🤭

Airheads are a must with your order!

J
Joseph

Alot cheaper than hks counterpart, and just as reliable.

D
David Mulvie
Great stuff!

As always, D has the best customer service. The heat range 9 were out of stock but he assured me these were fine for stage 1. I don't notice any difference from oem plugs but they seem to be working great!

J
Joseph

They work great. But not a 100,000 plug like most ngks.