Fabspeed 718 GT4 / GTS / Spyder 4.0liter engine to - GT4RS Conversion Package (2020+)

Fabspeed 718 GT4 / GTS / Spyder 4.0liter engine to - GT4RS Conversion Package (2020+)

Marsoni

M251S

$3297.97

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

Fabspeed 718 GT4 / GTS / Spyder 4.0liter engine to - GT4RS Conversion Package (2020+)SKU: POR. 718GT4. RSVLV Fabspeed 718 GT4 GTS Spyder 4. 0liter engine to GT4RS Conversion Package (2020+) Transform your 2020 2024 Porsche 718 Cayman GT4 GTS or Boxster Spyder GTS 4. 0L with the Fabspeed GT4RS Conversion Package a complete bolt on exhaust retrofit featuring MAXFLO GT4RS system. This upgrade delivers dyno proven gains of +30 HP and +22. 8 ft lbs TQ across the RPM band pushing over 400 WHP while retaining catalysts and stock ECU.

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Exchange/Return Notes

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5 STARS: These shoes are awesome. I keep coming back for more. I have major foot problems, have tried all kinds of shoes, orthotics, and inserts... but believe it or not, these shoes work better than any of that stuff. I wear them daily. I buy lots of them, for home, for church, and I'm getting my first pair of J&M boots today, for winters in Indiana... Brrrr

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Reviewed in the United States on December 18, 2025

Verified Purchase

Doc

Massapequa, US

★★★★★ 5

Great price great shoe

Size: 12, Color: Burgundy Polished Full Grain

Excellent shoe. Tried the Sebago penny loafer and the sizing was ridiculous. These J and M are sized perfectly. I’ve had them before and they wear like iron. Very comfortable right out of the box.

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Reviewed in the United States on May 23, 2026

Verified Purchase

roger mendes

Massapequa, US

★★★★★ 5

One of the best shoes

Size: 9.5, Color: Black Polished Full Grain

Outstanding. Fashionable, most comfortable and good construction. No sines of use after quite some time. Highly recommended.

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Reviewed in the United States on March 21, 2026