2006 MITSUBISHI COLT exhaust

GROUP 15
INTAKE AND EXHAUST
CONTENTS
AIR INTAKE SYSTEM . . . . . . . . . . . .15-2
AIR DUCT AND AIR CLEANER . . . . . . . . . 15-2
INTERCOOLER <4G1> . . . . . . . . . . . . . . . 15-3
INLET MANIFOLD <4A9> . . . . . . . . . . . . . . 15-4
INLET MANIFOLD <4G1> . . . . . . . . . . . . . 15-4
EXHAUST SYSTEM . . . . . . . . . . . . . .15-5
EXHAUST MANIFOLD <4A9> . . . . . . . . . . 15-5
TURBOCHARGER <4G1> . . . . . . . . . . . . . 15-6
EXHAUST PIPE AND MUFFLER <4A9> . . 15-7
EXHAUST PIPE AND MUFFLER <4G1> . . 15-8

AIR INTAKE SYSTEM
INTAKE AND EXHAUST15-2
AIR INTAKE SYSTEM
AIR DUCT AND AIR CLEANER M2150004000504
CONSTRUCTION DIAGRAM
AC601193AB
Engine
air intake hose
Air cleaner assembly
Air cleaner intake duct
<4A9>
Engine
air intake hose

Air cleaner resonator
AC402138
Engine air intake hose
Air cleaner assembly
Air cleaner intake duct
AB
<4G1>
AC402138
•An air cleaner reson a tor ha s bee n adop ted to
improve eng
ine p e rformance and re duce air
in
t a ke no ise <4A9>.
•A front air int a ke system that actively su cks co ol-
ing air from th e front throug h the to p of th e radia-
tor ha s b een ad opted in ord e r to improve en gine
perf
o rman ce a nd redu ce air int a ke noise.
•For the air clea ner int a ke duct, a ve ntur i d u ct with
a diaphra
g m on it s p a th has been adopte d to su p
-
press rise in air resist ance and reduce air int a ke
noise.
•In considerat ion of ind u strial waste red u ction an d
global environment, re
cyc led mate rials made
from eating ut
ensils and th e scrap s ha ve be en
ado
pted for t he air clean er body and cover of t he
air cleaner a
sse mbly .

AIR INTAKE SYSTEM
INTAKE AND EXHAUST15-3
INTERCOOLER <4G1>
M2150007000246
An air cooled intercooler has been adopted to lower
the intake air temperature drastically and improve
engine performance.
CONSTRUCTION DIAGRAM
AC600080AB
Intercooler inlet air ductAir by-pass valve
Intercooler assembly

AIR INTAKE SYSTEM
INTAKE AND EXHAUST15-4
INLET MANIFOLD <4A9>
M2150010000105
AK305379
Inlet port
AB
The inlet manifold is made o f resin. Th e inlet por t s
are cu
rled f o r size a nd weig ht redu ctio n.
INLET MANIFOLD <4G1>
M215001 00001 1 6
AK403235
The port sha pe is ch anged to be o p timum f o r the
vehicle
with th e turbo c harg e r .

EXHAUST SYSTEM
INTAKE AND EXHAUST15-5
EXHAUST SYSTEM
EXHAUST MANIFOLD <4A9>M2150006000317
AK402037
Pipes
AD
The exhaust manifold co nsist s of st ain l ess st eel
pipes, with
all the po rt s bein g equa l in leng th, to
achieve
robust mid-range torque and weight red u c
-
tion.

EXHAUST SYSTEM
INTAKE AND EXHAUST15-6
TURBOCHARGER <4G1>
M2150009000123
AK402141
Cons id ering the ba lance among t he eng ine o u tput,
the response and
the amount of the exha ust g a ses,
the opt
imized size is used .

EXHAUST SYSTEM
INTAKE AND EXHAUST15-7
EXHAUST PIPE AND MUFFLER <4A9>
M2150003000642
CONSTRUCTION DIAGRAM
AC601362AB
Centre exhaust pipeExhaust main muffler
Front exhaust pipeAnnular joint
Under floor catalytic converter

Exhaust pre-muffler
Insertion joint
AC601363AB
Centre exhaust pipeExhaust main muffler
Front exhaust pipeAnnular joint
Under floor catalytic converter

Exhaust pre-muffler
Insertion joint
Exhaust pipe consisting of th ree sep a ratio n system:
front exhaust pipe,
centre e x hau st pip e , and exhaust
main muf
f ler , has the fo llowing fea t ures:
•An exhaust pre-muff ler ha s be en in st alled to th e
ce
ntre exhaust pipe in order t o reduce exhaust
noise.
•An insertion joint has b een a dopted for the con-
nection between the centre exha ust p i pe and the
exhaust ma
in muf f ler to save the weight of the
exhaust system.
•The under floor cat a lytic con v erter has been
moved
clo s er to the e ngine side to impro v e
exhaust gas perfo
rmance.
•An annula r joint has been adopt ed for th e co n-
nection between the exhau st manifo ld an d the
fron
t exh aust pipe to redu ce th e exhaust pipe 's
vibration from the
engine side.

EXHAUST SYSTEM
INTAKE AND EXHAUST15-8
EXHAUST PIPE AND MUFFLER <4G1>
M2150003000653
CONSTRUCTION DIAGRAM
AC601366AB
Centre exhaust pipeExhaust main muffler
Front exhaust pipe
Under floor
catalytic converter
Exhaust pre-muffler
Front
catalytic
converter
Insertion joint
Annular joint
Exhaust pipe co
nsisting of th ree sep a ratio n system:
front exhaust pipe,
centre e x hau st pip e , and exhaust
main muf
f ler , has the fo llowing fea t ures:
•An exhaust pre-muff ler ha s be en in st alled to th e
ce
ntre exhaust pipe in order t o reduce exhaust
noise.
•An insertion joint has b een a dopted for the con-
nection between the centre exha ust p i pe and the
exhaust ma
in muf f ler to save the weight of the
exhaust system.
•An annula r joint has been adopt ed for th e co n-
nection between the fro n t exhaust pip e and the
fron
t cat a lytic co nvert e r has been adopt ed to
redu
ce vibra t ion from th e eng ine side .
•A front cat a lytic co nvert e r and an und er floo r cat-
alytic conver ter have bee n adop ted to imp r ove
exhaust gas perfo
rmance.