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WALKER® EXHAUST SYSTEMS: Abbreviations
A.I.R.
Air Injection Reactor
FED
Federal
O.H.V.
Overhead Valve
ALT
Altitude
F.I.
Fuel Injection
PASS.
Passenger
AMC
American Motors Corporation
FLNG.
Flange
PKG.
Package
A.T.
Automatic Transmission
F.W.D.
Front Wheel Drive
P.T.O.
Power Take Off
AUTO
Automatic
GMC
General Motors Corporation
REG.
Regular
AUX.
Auxillary
GSKT.
Gasket
REQ.
Required
A.W.D.
All Wheel Drive
G.V.W.
Gross Vehicle Weight
R.H.
Right Hand
B.B.C.
Bumper to Back Cab
H.D.
Heavy Duty
R.W.D
Rear Wheel Drive
BBL
Barrel
HI PERF.
High Performance
S.C.
Supercharged
BRKT.
Bracket
HNGR.
Hanger
S.B.C.
School Bus Chassis
CALIF.
California
H.O.
High Output
S.D.
Super Duty
CARB.
Carburetor
H.P.
Horse Power
SED.
Sedan
cc
Cubic Centimeters
HYD
Hydramatic
SER.
Serial
C.C.
Commercial Chassis
H5D
GM Heavy Duty Emissions
S.M.P.I.
Sequential Multipoint Fuel Inject.
C.F.I.
Central Fuel Injection
I.D.
Inside Diameter
SOHC
Single Overhead Camshaft
C.I.D.
Cubic Inch Displacement
INCL.
Including
SPEC.
Special
CLMP.
Clamp
INJ.
Injection
S.P.I.
Single Point Injection
CNG
Compressed Natural Gas
INSL.
Insulator
S.T.
Super Turbine
C.O.E.
Cab Over Engine
L.C.F.
Low Cab Forward
STA. WAG.
Station Wagon
COMM. CH.
Commercial Chassis
LIMO.
Limousine
STD.
Standard
CONV.
Converter
L.H.
Left Hand
STRP.
Strap
CPE.
Coupe
MAN.
Manual
SUB.
Suburban
CU. IN.
Cubic Inch
MAN. TRAN.
Manual Transmission
T.B.I.
Throttle Body Injection
CYL.
Cylinder
MFI
Multiport Fuel Injection
T.P.I.
Tuned Port Injection
DIA.
Diameter
M.H.C.
Motor Home Chassis
TRANS.
Transmission
DOHC
Dual Overhead Camshaft
M.T.
Manual Transmission
TURBO
Turbocharger
DR.
Door
N.A.
Not Available
w/
With
E.F.E.
Early Fuel Evaporation
N.F.
Not Furnished - Reuse Old Flange
w/o
Without
EFI
Electronic Fuel Injection
NO.
Number
WAG.
Wagon
E.G.R.
Exhaust Gas Recirculation
N.R.
Not Required
W.B.
Wheel Base
ENG.
Engine
N.R.A.
Noise Restricted Areas
W.D.
Wheel Drive
EXC.
Except
O.D.
Outside Diameter

EXH.
Exhaust
OE
Original Equipment