SKULL SQs

Marsoni

M251S

$160.00

Get it in 3 business days with 1 day shipping. Friday, May 29

SKULL SQsWelcome to Signature Mods SKULL SQs Options 24mm Doors Mod Width Will Be 25mm IMPORTANT NOTE (This is a mechanical mod and should only be used by Experienced Vapers) Specs: Manual left hand Adjustment 510 with Allen key provided Designed and manufactured by Signature Tips UK Solid Silver Contact Points Fine shot blasted and Hard anodized. A range of coloured doors and bodies will be available very soon Manufactured from Solid Billet Aluminium

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Exchange/Return Notes

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Didn't really believe the hype. Did a little research and watched Project Farm and decided to try. Im not a snake oil guy....but I will say my 2013 common rail TDI is quieter and I get a tad more fuel mileage. Does it pay for itself? Well, it does get better mpg, but I feel the reduction in noise most likely relates to less wear and tear and thats good enough for me. Im only using 1oz per fill up (about 14 gallons) so it lasts a very long time. I get 40mpg and im not light footed.

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Reviewed in the United States on April 2, 2026

Verified Purchase

James Jay

Lexington, US

★★★★★ 5

It's a spark plug

What i needwd

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Reviewed in the United States on May 27, 2026

Verified Purchase

Draper, US