Guyatone GST-C04 Ultrem Optical Tremolo

Marsoni

M251S

$299.50

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

Guyatone GST-C04 Ultrem Optical TremoloThe Guyatone Ultrem Optical Tremolo pedal is a versatile and comprehensive tremolo unit that seamlessly blends vintage charm with modern technology to stretch the humble tremolo to its limits; from subtle valve amp wobbles to intense, choppy jet engine sounds. Key features include a tap tempo function for on the fly speed adjustments, an auto function that activates tremolo with incoming signals, and compatibility with the optional expression pedal

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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]
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Reviewed in the United States on November 8, 2025

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Marlana Lupo

Lexington, US

★★★★★ 5

Awesome!!

Had a check engine light come on for cam shaft position. Did some research online about the specific code and found that I could be due to sludge in the engine. Added this and ran for about 30 minutes and then had the oil changed. The light never came back on and the engine is running smooth and quiet. Will definitely use again.

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Reviewed in the United States on April 5, 2026

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Discovery

Belleville, US

★★★★★ 5

Great product

This brand is great. The car is running great

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Reviewed in the United States on March 4, 2026

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