do i need new wires for these? like new connectors? or can i use the old ones?

I used the old wires mine were in good shape I put new plugs and coils in everything is running great

Did anyone see a noticeable increase in Mpg's after replacing these?.(compared do when you didn't have a misfire)

We did not check the miles per gallon when the 1 cylinder was not firing, we wanted t fix it. The dead cylinder will still have gas injected or drawn in, this gas will not add to the engine power, the 3 working cylinders will not move the car as well as 4. Since the gas is going through the engine without burning, it is not adding power, it is wasted., therefore the mpg is always lower with dead cylinders. There are 8 cylinder trucks designed to run on 6 or 4 cyl's when power demand is low, they are designed to shut of the fuel injectors at the specific cylinders.

Will this fit a 2008 Mercury mariner with a 2.3 Engine?

No they will not. Try these insteadMotorKingIC117 DG507 DG541 4M5G12A366BC 04-12

is this for one or all 4

All 4 heck of a deal these are 60 a piece at Autozone saved almost 200

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ENA Set of 4 Ignition Coil Pack Compatible with Ford Mazda Mercury Escape Focus Tribute Mariner Transit Connect Fusion Ranger MKZ 2.0L 2.3L 2.5L DOHC Replaces FD505 DG501 DG504 DG541 DG507 - Black

ENA Set of 4 Ignition Coil Pack Compatible with Ford Mazda Mercury Escape Focus Tribute Mariner Transit Connect Fusion Ranger MKZ 2.0L 2.3L 2.5L DOHC Replaces FD505 DG501 DG504 DG541 DG507 - Black

Product ID: 24509325

Details

Brand
ENA
Connector Gender
male
Installation Type
Bolt-On
Item Weight
16 ounces
Vehicle Service Type
Car

⚡Consistent spark output

🔧Plug-and-play bolt-on install

🚗Fits 20+ Ford, Mazda, Mercury models

10009 kr

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Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Ignite your drive with precision power and seamless fit!

DURABLE BUILD QUALITY - Premium materials ensure long-lasting performance backed by a 12-month warranty—drive worry-free.
COST EFFECTIVE UPGRADE - Affordable replacement coils that outperform OEM prices without compromising quality—save now, drive better.
EFFORTLESS INSTALLATION - Plug-and-play design means zero downtime—get back on the road faster.
WIDE VEHICLE COMPATIBILITY - Tailored for 2.0L, 2.3L, and 2.5L engines across Ford, Mazda, Mercury, and Lincoln models—one pack fits many rides.
RELIABLE IGNITION PERFORMANCE - Engineered for consistent spark output to boost fuel efficiency and smooth engine operation.

The ENA Set of 4 Ignition Coil Packs offers a direct bolt-on replacement compatible with a broad range of Ford, Mazda, Mercury, and Lincoln vehicles featuring 2.0L to 2.5L DOHC engines. Designed for reliable ignition and consistent spark delivery, these coils improve engine performance and fuel efficiency. Featuring a plug-and-play design, they ensure quick installation and come with a 12-month warranty, making them a smart, cost-effective upgrade for professional drivers seeking dependable vehicle maintenance.

Specifications

ASIN	B00NHFWGBQ
Automotive Fit Type	Vehicle Specific Fit
Best Sellers Rank	#53,343 in Automotive ( See Top 100 in Automotive ) #146 in Automotive Replacement Ignition Coil Packs
Brand Name	ENA
Compatible with Vehicle Type	Car
Connector Gender	male
Customer Reviews	4.4 4.4 out of 5 stars (1,307)
Installation Type	Bolt-On
Item Weight	16 ounces
Manufacturer	ENA
Manufacturer Part Number	ENAIC1115504
Model Number	C1453, DG507, DG541, C1658
OEM Equivalent Part Number	C1453 DG507 DG541 4M5G-12A366-BC 4M5Z-12029-BC FD505 FD-505
Part Interchange Info	C1453 DG507 DG541 4M5G-12A366-BC 4M5Z-12029-BC FD505 FD-505
UPC	021515616159
Unit Count	4 Count

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10009 kr

Duties & taxes included

In stock

Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Iceland.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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