Best in 7 days
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- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jun 17 - Jun 22
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Massive Underdrive Light Pulley SystemsInstalls in place of your factory crank pulley. Free's up some nice HP. Zetec motors are INTERNALLY ZERO balanced, meaning the factory pulley IS NOT a harmonic dampener of any kind. This means swapping the crank pulley will have NO adverse effects on engine longevity, Massives staff has logged literally over 500,000 collective miles with these pullies installed and have seen NO unsatisfactory qualities. Weight differences between this and competitors
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.2 ★★★★★
Based on 611 reviews
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Product Reviews
★★★★★ 5
Great Quality Vest
Great quality vest versatile for all occasions. I personally felt it ran a bit tight (I ordered a large and felt like I was sucking in a bit the whole time) but I think an XL would have been too big. Overall impressed and happy with purchase.
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Reviewed in the United States on January 2, 2025
★★★★★ 3
BUTTONS LIKE A SMALLER SIZE. GOOD QUALITY.
DESIGN IS EXCELLENT. QUALITY IS FINE. I WEAR A LARGE, BUT THIS VEST, IN A LARGE, DID NOT ALLOW ME TO BUTTON ... AS IF IT IS A MEDIUM FIT. WILL RETURN, BUT IT IS A VERY GOOD VEST OTHERWISE.
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Reviewed in the United States on September 23, 2025
★★★★★ 5
Well made and looks great.
This vest fits well and is well made. It feels tailored. I feel great and look good wearing it.
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Reviewed in the United States on December 3, 2025
★★★★★ 5
Looks great feels great fits great incredible price
Looks great feels great fits great incredible price
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Reviewed in the United States on December 2, 2025
★★★★★ 5
Loved the fit
Looked great with my outfit
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Reviewed in the United States on April 17, 2026
