6Boost Turbo Exhaust Manifold / RB20/25 T4 Twin-Scroll / Single wastegate

6Boost Turbo Exhaust Manifold / RB20/25 T4 Twin-Scroll / Single wastegate

Marsoni

M251S

$838.35

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

6Boost Turbo Exhaust Manifold / RB20/25 T4 Twin-Scroll / Single wastegate6Boost Turbo Exhaust Manifold RB20 25 T4 Twin Scroll Single wastegateSKU: RB2X T4DE S50SThis manifold will suit RB25DET and RB20DET enginesThis manifold is manufactured by 6Boost to the following specifications:* T4 Dual Entry Turbine Inlet Flange* Wastegate provision for a Turbosmart or similar 45mm 50mm or 60mm External Wastegate (no flange welded on)Features:* Steampipe Construction, with Lifetime Warranty against cracking* Ideal Wastegate Port

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I installed this K&N Lifetime Cabin Air Filter in my 2016 F-150 and noticed the difference right away. The airflow is stronger, and the cabin smells fresher even when driving through dusty or humid areas. What I really like is that it’s washable and reusable—so I won’t have to keep buying filters every year. Fitment was perfect and install took under 10 minutes. Just pop out the old one, slide this one in, and you’re good to go. It feels solid and well made, not like those cheap paper ones. It’s definitely worth the investment, especially if you drive a lot or have allergies. Highly recommend for anyone with a Ford or Lincoln vehicle—it pays for itself quickly!

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Reviewed in the United States on July 3, 2025

Verified Purchase

Bill

Whiting, US

★★★★★ 5

Fit 2024 F250 Platinum

Size: 1.9" x 9.9" x 11.4"

Good quality, perfect fit.

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Reviewed in the United States on April 16, 2026

Verified Purchase

JAMES ERIK FOREHAND

Houston, US

★★★★★ 5

Great

Size: 1.9" x 9.9" x 11.4"

Great value for the money and easy to install.

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Reviewed in the United States on May 10, 2026

Verified Purchase

Mark Liszkiewicz

Dallas, US

★★★★★ 5

nice quality

Size: 1.9" x 9.9" x 11.4"

I happen to be a fan of K&N air filters. Fit perfect in my vehicle. Seems like a much nicer quality filter than the cheapo filters from the parts store.

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Reviewed in the United States on March 7, 2026