Stackable shims index spark plugs at 30 intervals up to 360 properly positioning ground strap in cylinder head for increased power and clearance between spark plug and piston. Shims are intended for use with 14mm flat seat spark plugs only. Package of 24 shims contains 12 silver 60, 12 black 90, detailed instructions and dial chart.
Allstar Performance ALL96506 Spark Plug Index Shim
Was:
$98.66
Now:
$49.33
- SKU:
- TBQ241291
- UPC:
- 848238058086
- Condition:
- New
- Availability:
- Free Shipping from the USA. Estimated 2-4 days delivery.
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Allstar Performance ALL96505 Spark Plug Index Shim, 14mm
Was:
$117.86
Now:
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Now:
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