Exhaust› Exhaust Pipes, Systems and Components

QuickSilver

Titanium & Stainless Steel Sport Exhaust System

$5,994.00

SKU: RS378S

In Stock
In Stock
Ships by Jul 30
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The QuickSilver RS378S is a performance sport exhaust system designed for the Rolls-Royce Cullinan. This titanium and stainless steel hybrid exhaust features Sound Architect active valves, allowing for two distinct sound modes controlled by a dedicated remote fob.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandQuickSilver
Part NumberRS378S
CategoryExhaust

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy