What vehicle does this exhaust diagram cover?

The 1989–92 Chevrolet Caprice Police Car (Full Size) with the 350 C.I.D. (5.7L) 8-cylinder engine.

What muffler part numbers are listed for this Caprice Police Car?

Muffler 22393◆, with alternatives Direct Fit 18339, Super Turbo 17734, Glasspack 24069 (requires 35003 bracket & 41206 spout on outlet), Universal 18175, and Ultra-Flo SS 17288.

Which tailpipes fit which years?

Tailpipe 21992◆ fits 1989 (Direct Fit 18352) and 22545◆ fits 1990–92 (Direct Fit 18380). Resonator substitute pipes are 42822 (1989) and 43072 (90-92).

What do the diamond (◆) symbols mean on part numbers?

◆ means if it is a welded assembly, replace all required parts.

What are the intermediate pipe options by year?

15735 for 89-90 with Air Tap, 15688 for 1991 without Air Tap, and 15622 for 1992; front pipes are 40273 (1989), 40299 (90-91), and 40315 (1992).

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1989-92 Chevy Caprice Police 5.7L 350 Exhaust System Diagram & Part Numbers

Parts catalog exhaust diagram for a 1989-92 Chevrolet Caprice police car with numbered components

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Parts catalog exhaust system breakdown for a 1989-92 Chevrolet Caprice with part numbers, flanges, hangers and gaskets.

AI caption September 2005 · Photo 61 of 63

This document is page 268 of an exhaust parts catalog (DynoMax/Walker style) covering the 1989–92 Chevrolet Caprice Police Car with the 350 C.I.D. (5.7L) 8-cylinder engine. It presents an exploded diagram of the full exhaust system, from the front exhaust pipes through the converter/intermediate pipes, muffler, tailpipe, and resonator substitute pipe. Each component is labeled with a part number, applicable model years, and pipe diameter where relevant (3", 2½", 2¼"). Key part numbers include front pipes 40273/40299/40315, intermediate pipes 15735/15688/15622, muffler 22393 with alternatives (Direct Fit 18339, Super Turbo 17734, Glasspack 24069, Universal 18175, Ultra-Flo SS 17288), tailpipes 21992/22545 with Direct Fit replacements 18352/18380, and various gaskets, flanges, hangers, and brackets (31550, 31865, 31942, 35244, 35270, 35662, 35865, 35941). A hardware table at the bottom illustrates the gasket, flanges, hangers, and bracket. Footnotes explain welded assembly replacement, additional installation parts (page 875), resonator substitute pipes, and requirements such as the 35003 bracket and 41206 spout for the glasspack option. A reader can identify every exhaust component and its year-specific application for this police-package Caprice.

This document covers 1989-92, which may differ from this 1990 Ford LTD Crown Victoria.

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Frequently asked questions

What vehicle does this exhaust diagram cover?: The 1989–92 Chevrolet Caprice Police Car (Full Size) with the 350 C.I.D. (5.7L) 8-cylinder engine.
What muffler part numbers are listed for this Caprice Police Car?: Muffler 22393◆, with alternatives Direct Fit 18339, Super Turbo 17734, Glasspack 24069 (requires 35003 bracket & 41206 spout on outlet), Universal 18175, and Ultra-Flo SS 17288.
Which tailpipes fit which years?: Tailpipe 21992◆ fits 1989 (Direct Fit 18352) and 22545◆ fits 1990–92 (Direct Fit 18380). Resonator substitute pipes are 42822 (1989) and 43072 (90-92).
What do the diamond (◆) symbols mean on part numbers?: ◆ means if it is a welded assembly, replace all required parts.
What are the intermediate pipe options by year?: 15735 for 89-90 with Air Tap, 15688 for 1991 without Air Tap, and 15622 for 1992; front pipes are 40273 (1989), 40299 (90-91), and 40315 (1992).