WenmarOpen by Wenmar Pro

Service bulletin No. 15-17

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10203096
Published by NHTSA2021-11-05
Manufacturer's numberNo. 15-17
Manufacturer's date2021-10-25
NHTSA componentEQUIPMENT; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE

NHTSA's summary

Installation and conversion instructions for retrofitting the sports tailpipe

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine, Equipment and accessories, Exhaust and emissions, Exhaust manifold, pipes and muffler

Vehicles listed
PORSCHE PANAMERA2017, 2018, 2019, 2020
PORSCHE PANAMERA 42017, 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE PANAMERA 4 E-HYBRID2017, 2018, 2019, 2020 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE PANAMERA 4 EXECUTIVE2018 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE PANAMERA 4 HYBRID2018 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE PANAMERA 4 HYBRID EXECUTI2018 (the catalog's model; the bulletin names a series or trim of it)
PORSCHE PANAMERA 4 SPORT TURISMO2018 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.