Commonly Used Acronyms

! – using this before an acronym means removal of that item from the vehicle (example: !EGR)
1/4 – Quarter Mile (drag racing)
1LE – Suspension Handling Package Option
2WD – Two Wheel Drive
4L60E – actual part name for the Automatic 4-speed transmission
4L65E – medium duty 4-speed automatic transmission found in some trucks
4L80E – heavy duty 4-speed automatic transmission found in some trucks
4WD – Four Wheel Drive
700R4 – older generation 4-speed GM automatic transmission
A3 – 3-speed automatic transmission
A4 – 4-speed automatic transmission
A/F – Air Fuel Ratio
AIR – Air Injection Recirculation (part of emissions system.)
APHR – Adjustable Panhard Rod (Suspension)
AFR – Air Flow Research (Vendor)
ASP – Automotive Specialties Performance (Vendor)
ASR – Camaro version of traction control
ATF – Automatic Transmission Fluid
ATI – Supercharger Company (Vendor)
AWD – All Wheel Drive
B4C – Police Package Option
BBC – Big Block Chevy engine
BBDC – Before Bottom Dead Center
BDC – Bottom Dead Center
BHP – Brake Horsepower
BOV – Blow Off Valve (turbo related)
B/O – Bolt-On Modifications
BSM – Body Side Moulding – door ding guards on your doors.
BTDC – Before Top Dead Center
BTW – By The Way
C5 – Fifth Generation Corvette (1997-2004)
CAGS – Computer Assisted Gear Selection (the “skip-shift” on MN6 cars.)
CATS – Catalytic Converters (emissions/exhaust system)
CAI – Cold Air Induction
CCLB – Crew Cab Long Bed Truck
CETA – Collector Edition Trans Am (yellow 2002 model)
CI – Cubic Inches (engine displacement)
CKP – Crankshaft Position (sensor)
CME – Center Mount Exhaust (SLP brand system)
CMP – Camshaft Position (sensor)
CONV – Convertible
CR – Compression Ratio
DEG – Degrees (timing or temperature)
DRL – Daytime Running Lights
DR’s – Drag Radial Tires
DSL – Driveshaft Safety Loop
DTC – Diagnostic Trouble Code
ECM – Engine Control Module
ECSB – Extended Cab Short Bed
ECL – Exhaust Lobe Center Line (camshaft)
ECT – Engine Coolant Temperature (sensor)
EGR – Exhaust Gas Recirculation (emissions system)
EGT – Exhaust Gas Temperature
E/T – Elapsed Time (drag racing time measurement)
FAST – Fuel Air Spark Technology (Vendor)
FBODY – GM chassis designation for Camaro/Firebird
FI – Forced Induction (turbos, superchargers)
FIPK – Fuel Injection Performance Kit (See K&N)
FMIC – Front Mounted Intercooler (turbo)
FMS – Futral Motorsports (Vendor)
FMU – Fuel Management Unit
FPR – Fuel Pressure Regulator
FPSS – Fuel Pressure Safety Switch
FRA – “Free Ram Air” modification
FRC – Fuel Rail Covers OR Fixed Roof Corvette (hardtop Vette)
FLP – Finish Line Performance (Vendor)
FTRA – Fast Toys Ram Air (product)
FWD – Front Wheel Drive
FWIW – For What Its Worth
GMMG – Vendor known for producing modified GM backed F-bodies H/C – Heads and Camshaft
HO2S – Heated Oxygen Sensor
HP – Horsepower
HPE – Horsepower Engineering (Vendor)
HPP3 – Hypertech Power Programmer 3 (product)
IAC – Idle Air Control (solenoid)
IAT – Intake Air Temperature (sensor)
IC – Ignition Control Circuit
ICL – Intake Lobe Center Line (camshaft)
IGN – Ignition
IMHO – In My Humble Opinion
IRS – Independent Rear Suspension
K&N – Brand name of air filter
KR – Knock Retard (tuning)
LCA – Lower Control Arm (suspension)
LGM – Lou Gigliotti Motorsports (Vendor)
LM – Loud Mouth (exhaust system by SLP)
LMAO – Laughing My Ass Off
LOL – Laughing Out Loud
LPE – Lingenfelter Performance Engineering (Vendor)
LQ4 – iron block, LS1-based 6.0L truck engine
LS1 – Generation 3 GM smallblock V8 engine (introduced 1997)
LS2 – Generation 4 GM smallblock V8 engine (introduced 2005)
LS6 – Generation 3 GM smallblock V8 found in Corvette Z06 (introduced 2001)
LSA – Lobe Seperation Angle (camshaft)
LSS – Lou’s Short Stick (shifter handle)
LT – Long Tube Headers
LTFT – Long Term Fuel Trim (tuning)
LTRIM – Long Term Fuel Trim (tuning)
M6 – 6-speed transmission
MAF – Mass Air Flow sensor (measures amount of air entering intake)
MAP – Manifold Absolute Pressure (sensor)
MAFT – Mass Air Flow Translator (product)
MN6 – Option code for factory 6-speed transimission.
MTI – Motorsport Technologies, Inc. (Vendor)
N/A – Naturally Aspirated (all-motor)
N20 – Nitrous Oxide
NBM – Navy Blue Metallic (color)
NOS – Nitrous Oxide Systems (brand name)
NWS – Not Work Safe (do not click link if you are at work, unsuitable material inside)
O2 – Oxygen Sensor
ORY – Off Road Y-pipe
ORP – Off Road Pipe
PCM – Powertrain Control Module (your vehicles engine/tranny computer)
PCV – Positive Crankcase Ventilation (emissions system)
PE – Power Enrichment (tuning)
PHR – Panhard Rod (suspension)
PITA – Pain In The Ass
POS – Piece Of Shit
P/P – Ported And Polished
QTEC – Quick Time Electric Cutout (product)
QTP – Quick Time Performance (Vendor)
RCSB – Regular Cab Short Bed Truck
RCLB – Regular Cab Long Bed Truck
ROFLMAO – Rolling On Floor Laughing My Ass Off
RPM – Revolutions Per Minute (engine speed)
RWD – Rear Wheel Drive
RWHP – Rear Wheel Horsepower
RWTQ – Rear Wheel Torque
SAE – Society of Automotive Engineers
SBC – Small Block Chevy engine
SC – Super Charger
SES – Service Engine Soon lamp (on dash)
SFC – Subframe Connectors
SLP – Street Legal Performance (Vendor)
SOM – Sunset Orange Metallic (color)
SOTP – Seat Of The Pants
SS – Super Sport
SSLE – Super Sport Limited Edition (2002 Anniversary package)
SSRA – Super Sucker Ram Air
STB – Strut Tower Brace
STFT – Short Term Fuel Trim (tuning)
STRIM – Short Term Fuel Trim (tuning)
T56 – actual part name for the M6 transmission
TA – Trans Am
TB – Throttle Body
TBODY – Throttle Body
TBRAKE – Transmission Brake
TEA – Total Engine Airflow (Vendor)
TC – Torque Converter
TCS – Firebird version of traction control
TDC – Top Dead Center
TFP – Transmission Fluid Pressure (switch/valve)
TH350 – Turbo Hydromatic 3-speed automatic transmission
TH400 – Heavy Duty Turbo Hydromatic 3-speed automatic transmission
TNT – Texas Nitrous Technologies (Vendor)
TP – Throttle Position
TPiS – Tuned Port Induction Specialties (Vendor)
TPS – Throttle Postion Sensor
TQ – Torque
TR – Thunder Racing (Vendor)
TSP – Texas Speed & Performance (Vendor)
TT – Twin Turbo
TT2 – Torque Thrust 2 (type of wheels by American Racing)
TTOP – T-Top roof
TTT – “To The Top”
UCA – Upper Control Arm (front suspension)
VATS – Vehicle Anti-Theft System (the coded chip in your ignition key)
VERT – Convertible
VSS – Vehicle Speed Sensor
WB O2 – Wide Band Oxygen Sensor
WOT – Wide Open Throttle
WS6 – Firebird Performance “Ram Air” Package (RPO code)
WTB – Want To Buy
WTF – What The F-ck?
WTT – Want To Trade
WU8 – Camaro Performance SS Package (RPO code)
Y2Y – Exhaust Upgrade Option Code for SS Camaro (Dual-Dual system)
YBODY – GM chassis designation for Corvette
Z06 – Corvette Performance Package, based on hardtop body (RPO code)
Z28 – Camaro equipped with V8 engine (RPO code)
ZL1 – Camaro Modified by GMMG and equipped with LS6 or 427ci engine