TRQ Ignition Kit Ignition Coil Spark Plugs Compatible with 2001-2005

In this review the TRQ Ignition Kit is judged as a budget-friendly, direct-replacement option for owners of 2001-2005 Mazda Miata who need a full ignition refresh. The kit includes two ignition coils and four iridium spark plugs, intended to restore a misfiring or tired ignition system without modifications. The single biggest reason to consider this kit is its complete fitment and ease of installation that matches stock specifications, making it a practical repair for DIYers and independent shops looking for a straightforward, like-for-like replacement.

Key Features

• Complete 6-piece kit: Includes two ignition coils and four iridium spark plugs so one purchase completes the entire ignition service for the 2001-05 Miata.
• Direct replacement coils: The ignition coils are designed as direct replacements that bolt in without modification, which simplifies installation and reduces shop time.
• Iridium spark plugs: The spark plugs use iridium tips for improved ignition stability and a nominally longer life compared with standard plugs.
• Fit and testing: TRQ states the kit is fit, lab, and road tested to match stock heat range and life cycle, helping restore engine performance to original behavior.
• Extensive reference coverage: The kit lists many reference numbers to help confirm compatibility and ease ordering for specific parts matching.
• Limited warranty: Backed by a 2-year / 24,000-mile warranty on the parts themselves, offering some buyer protection for product defects.

Who It's For

This kit is best for 2001-2005 Mazda Miata owners who want a complete ignition service in one box and prefer a direct-replacement part that fits without alteration. It is well suited to DIY mechanics comfortable changing coils and spark plugs and to independent shops seeking a lower-cost overhaul option that restores typical engine behavior.

Those who need guaranteed long-term lifespan or who are highly sensitive to precise plug-gap tolerances should compare OEM parts or higher-end branded ignition components; some users reported mixed mileage and occasional gap accuracy concerns, so buyers seeking maximum longevity or factory warranty coverage may want alternative options.

Pros & Cons

Pros

• Complete kit replaces all ignition components needed for the Miata in one purchase, saving time sourcing parts.
• Direct-replacement design and black coils make installation straightforward for experienced DIYers.
• Iridium plugs and lab-tested heat range aim to restore engine performance and ignition stability.
• 2-year parts warranty provides limited protection against defects.

Cons

• Mileage and long-term lifespan received mixed feedback from customers, so longevity may vary.
• Some buyers reported concerns around gap accuracy and immediate misfiring in isolated installs.

Specifications

Kit Contents	2 ignition coils, 4 iridium spark plugs (6 Piece)
Fitment	Compatible with 2001-2005 Mazda Miata
Ignition Coil Type	Direct Replacement
Spark Plug Type	Iridium
Ignition Coil Color	Black
Warranty	2-year / 24,000-mile (parts only)
Reference Numbers	Multiple TRQ and OEM reference numbers listed for cross-reference

Our Verdict

The TRQ Ignition Kit is a practical, cost-conscious choice for 2001-2005 Mazda Miata owners who need a complete ignition refresh and value ease of installation and fit. It offers good short-term value and a convenient all-in-one solution, though buyers seeking the longest possible lifespan or guaranteed factory tolerances may prefer OEM or premium branded parts.

Frequently Asked Questions

Does this kit include everything to service all cylinders?
Yes, the kit contains two ignition coils and four iridium spark plugs, sufficient for a full ignition service on the 4-cylinder Miata.

Will these parts bolt in without modification?
Yes, the coils are direct-replacement units designed to install without modifications and to match stock heat range specifications.

What does the warranty cover?
The included 2-year / 24,000-mile warranty covers defects in the products themselves but does not cover labor, installation costs, or consequential damage.