SKU: 87173967804

USP Marine Tuning High-Flow Air Intake Pipe for Mercury Verado L6 350-400

Sale price$92.67 Regular price$102.97
Save 10%

Pay in installments of $25.74 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 25 - Aug 30

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

USP Marine Tuning High-Flow Air Intake Pipe for Mercury Verado L6 350-400The factory plastic resonator pipe on the Verado L6 350 400 is restrictive, crack prone, and the number one source of the boost leaks that rob these engines of power. The USP Marine High Flow Air Intake Pipe replaces it with 4 ply wire reinforced silicone piping, CNC machined aluminum adapters, and 316 stainless clamps throughout the same spec used in our 1000HP turbo builds at USP Motorsports. The result is +30% CFM over stock, sharper throttle

The factory plastic resonator pipe on the Verado L6 350-400 is restrictive, crack-prone, and the number one source of the boost leaks that rob these engines of power. The USP Marine High-Flow Air Intake Pipe replaces it with 4-ply wire-reinforced silicone piping, CNC-machined aluminum adapters, and 316 stainless clamps throughout — the same spec used in our 1000HP turbo builds at USP Motorsports. The result is +30% CFM over stock, sharper throttle response, lower intake air temps at WOT, and that unmistakable supercharged induction sound.

Replaces factory part #s: 885354T01, 8M6003032, 815504256, 888988016

Features

  • +30% CFM improvement over factory
  • 4-ply wire-reinforced silicone piping
  • CNC aluminum adapters for smooth airflow transitions
  • 316 stainless clamps throughout
  • Eliminates the crack-prone factory plastic resonator
  • Enhanced supercharged induction sound at WOT

Fitment

  • Mercury Verado L6 350
  • Mercury Verado L6 400M
  • Mercury Verado L6 400R
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 87173967804

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.8 ★★★★★
Based on 18 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
S
Verified Purchase
Scraps
New York, US
★★★★★ 4
Good at price
Size: 9 Wide, Color: Sand
Fit a little small at my big toe but otherwise fit well. Heel rubbed slightly first 5 hour wear but no blister.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
L
Verified Purchase
Lynn
San Leandro, US
★★★★★ 5
Lightweight comfortable at a good price!
Size: 10.5, Color: Navy
These shoes are perfect. The color matches my navy outfits as well as my denim. They are comfortable and they look great. They are easy to pack lightweight and a great value. I am extremely satisfied and highly recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026
P
Verified Purchase
PHOEBES
Charlottesville, US
★★★★★ 3
REALLY CUTE SHOE BUT CUT WAY TOO SMALL!
Size: 8, Color: Black Patent
I received the black patent leather shoes today and they are so cute! Sadly I need to return them because they are cut way too small. I normally wear a 7.5 or 8 on dress shoes so I ordered the 8. They are so tight across the top that it's uncomfortable as soon as I put them on. They are smaller than a normal size 8 dress shoe. The big toe area is extremely uncomfortable because it doesn't allow any room for it at all, so my big toe just presses against the side and end of the shoe without even walking in them. I have very narrow feet and these still are too small for me. So I am returning them and I already ordered a 8.5 W and hope that will fit much better. The patent leather is very cute and adds just enough dressy that I can wear them with slacks or my Capri jeans. I like the slip on and the cushion foot bed because it feels soft.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
A
Verified Purchase
Amazon Customer
Los Angeles, US
★★★★★ 5
Love these flats!
Size: 9 Wide, Color: Black White Faux Snake Skin, Size: 9 Wide, Color: Black White Faux Snake Skin
One of my favorite pair of flats! I’ve had these for several years and they are still comfortable, in good shape and really add a little spice to my outfits. I can wear these all day and not have any foot pain or discomfort as a result. The quality is good, fit is perfect and I tend to have difficulty with shoes due to bunions. Love these!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
L
Verified Purchase
lunaposas
Grantham, US
★★★★★ 5
LOVE LOVE.
Size: 7.5 Wide, Color: Beige
I love these shoes so much I had to write a review. So comfortable. Cushioned. Fits perfectly especially if you are more on the wide side. They are soft. Flexible. Easy slip ons you can walk around in all day. I want to try more colors.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026

recommand products