1997-2003 Pontiac Grand Prix Underhood Performance

Grand Prix Performance Parts including Cold Air Intakes, Supercharger Pulleys, Camshafts and more from K&N, Comp Cams and Pulley Boys.
Wet or Dry ZEX Nitrous Oxide System for 4 and 6 Cylinder Engines

Wet or Dry ZEX Nitrous Oxide System for 4 and 6 Cylinder Engines

$529.00

The Zex Nitrous System, also called nitrous oxide, NOS, and various other similar terms, contains patented technology and uses bottle pressu ...more >>

K&N FIPK Air Intake Kit for 3.8L V6 57-3045

K&N FIPK Air Intake Kit for 3.8L V6 57-3045

$308.99

K&N Generation II Filter Injection Performance Kits (FIPKs) are built for many different vehicles and represent a dramatic improvement o ...more >>

W-Body Cold Air Induction System

W-Body Cold Air Induction System

$246.95

Boost your performance with our true cold air intake by Cold Air Inductions. Our intake system surpasses our competitors with superior q ...more >>

Comp Cams Xtreme Energy Hydraulic Roller Camshaft

Comp Cams Xtreme Energy Hydraulic Roller Camshaft

$324.99

Designed to maximize torque, acceleration and throttle response while providing excellent high RPM horsepower, our Comp Cams Xtreme Energy H ...more >>

Comp Cams Pro Magnum Hydraulic Lifters

Comp Cams Pro Magnum Hydraulic Lifters

$159.00

COMP Cams Pro Magnum Hydraulic Lifters are specifically designed to perform at higher engine speeds. When engines are equipped with a hydrau ...more >>

Comp Cams Valve Springs Retainers and Pushrods

Comp Cams Valve Springs Retainers and Pushrods

$144.99

If you've installed our Comp Cams Xtreme Energy Hydraulic Roller Camshaft or if you've installed higher ratio rocker arms, it's recommende ...more >>

Qwikchange Supercharger Pulley System

Qwikchange Supercharger Pulley System

$149.99

Please note: These are no longer being manufactured in aluminum finish, but are black powdercoated instead. The photos above are no longer ...more >>

Pulley Boys Supercharger Pulley

Pulley Boys Supercharger Pulley

$90.00

The Pulley Boys Supercharger Pulley is the highest quality, best engineered aftermarket pulley available. Add more boost and horsepower wit ...more >>

Supercharger Pulley Removal and Installation Tool

Supercharger Pulley Removal and Installation Tool

$147.94

This Pulley Boys Pulley Puller is the highest quality, best engineered aftermarket pulley tool available. Don't be fooled or try to save a ...more >>

MSD Blaster Ignition Coils 8224

MSD Blaster Ignition Coils 8224

$149.99

When it comes to late model performance parts, nothing beats bolt-on and direct connection components. Especially when they improve performa ...more >>

MSD 8.5mm Super Conductor Spark Plug Wires 32789

MSD 8.5mm Super Conductor Spark Plug Wires 32789

$80.99

MSD's 8.5mm diameter Super Conductor Spark Plug wires (also called spark plug cables) are an extremely popular and well-made brand of wire. ...more >>

MSD 8.5mm Super Conductor Spark Plug Wires 32559

MSD 8.5mm Super Conductor Spark Plug Wires 32559

$74.95

MSD's 8.5mm diameter Super Conductor Spark Plug wires (also called spark plug cables) are an extremely popular and well-made brand of wire. ...more >>

Taylor 8mm Spark Plug Wires - 3.8L V6

Taylor 8mm Spark Plug Wires - 3.8L V6

$48.80

The Finest High Performance Street and Race Wire or cable Engineered to Work with Today's Sophisticated Ignitions. Taylor's Spiro-Pro outper ...more >>

Taylor Space Age Boot Protectors

Taylor Space Age Boot Protectors

$49.99

If you are no longer using factory spark plug cables and the factory heat shields, and you have a supercharged engine or other high-heat pro ...more >>

Caspers High Speed Fan Switch Kit

Caspers High Speed Fan Switch Kit

$114.79

Finally a solution to manually operate your cooling fans. Great for the track when you need to keep the engine cool while in the staging lan ...more >>

AirAid 200-584 Throttle Body Spacer for Grand Prix and Impala 3.8L V6

AirAid 200-584 Throttle Body Spacer for Grand Prix and Impala 3.8L V6

$136.95

This PowerAid Throttle Body Spacer from AIRAID is designed to improve the low-end torque and horsepower of your engine while helping to cont ...more >>

Throttle Position Sensor TPS Enhancer GM engines

Throttle Position Sensor TPS Enhancer GM engines

$99.99

The Throttle Position Sensor (TPS) Enhancer maintains maximum horsepower by optimizing the throttle signal sent to the PCM. At about 70% thr ...more >>

V Plus Voltage Booster for 3.8L Series II Engine

V Plus Voltage Booster for 3.8L Series II Engine

$89.95

The Caspers Electronics V-Plus (V+) Volt Booster is designed to increase your entire electrical system voltage by approximately 2.2 volts ab ...more >>

GM Transmission Filter and Gasket - 3800 Series II Engines

GM Transmission Filter and Gasket - 3800 Series II Engines

$91.79

Official GM Transmission Filter and Gasket Kit. Don't skip this step when you are changing your transmission fluid. This will ensure your tr ...more >>

Battery Tender PLUS!

Battery Tender PLUS!

$69.99

The Battery Tender PLUS is a 1.25 amp battery charger designed to fully charge a battery and maintain it at proper storage voltage without t ...more >>

K&N Cone Filters

K&N Cone Filters

$48.99

Constructed with ultra-strong molded pliable rubber flanges that absorb vibration and allow for a secure attachment, the K&N Cone ...more >>

Fuel Pump Resistor - Supercharged 3800

Fuel Pump Resistor - Supercharged 3800

$63.71

The official GM fuel pump resistor kit is here. Don't replace your fuel pump if you don't need to. Carry this spare with you and never worry ...more >>

Engine Oil Breather Filter for 3800 LS1 LS3 LS6

Engine Oil Breather Filter for 3800 LS1 LS3 LS6

$49.99

A nice finishing touch appearance part that is used on bayonet-type mounts found on the LS1 and 3800 GM engines. Made of billet aluminum, co ...more >>

1999 Coolant Tank for 1997-2003 Grand Prix

1999 Coolant Tank for 1997-2003 Grand Prix

$53.99

Replace the coolant overflow tank in your 1997 or 1998 Pontiac Grand Prix 3.8L engine with our 1999-2003 style coolant bottle that relocates ...more >>

L67 Engine Cover Decals - W-body

L67 Engine Cover Decals - W-body

$40.00

High quality vinyl, computer cut to fit perfectly over the raised stripes, letters and numbers embossed on the supercharged engine cover. ...more >>

L36 Engine Cover Decals 3.8L non supercharged

L36 Engine Cover Decals 3.8L non supercharged

$30.00

High quality vinyl, computer cut to fit perfectly over the raised letters and numbers embossed on the non-supercharged engine cover. Th ...more >>

Intake Air Temp Extension (IAT) Harness

Intake Air Temp Extension (IAT) Harness

$24.99

If you have changed your intake system to a K&N cone filter or even a cold air box such as the SLP or K&N, you'll definitely want to ...more >>

GM Performance Supercharger Oil

GM Performance Supercharger Oil

$26.99

Two 4 ounce bottles of GM Supercharger Oil to complete your supercharger oil change. GM recommends you check your supercharger oil every 30 ...more >>

GM Replacement Fuel Filter

GM Replacement Fuel Filter

$20.51

Often overlooked during scheduled maintenance, you should replace your fuel filter according to your owner's manual. The older your vehicle ...more >>

Air-Fuel Gauge Installation Pigtail

Air-Fuel Gauge Installation Pigtail

$19.99

Quickly and easily install your new Air/Fuel (A/F) gauge using this handy pigtail that makes installation literally a plug and play "snap!" ...more >>

GTP Engine Cover Decals for 1997-2003 Grand Prix

GTP Engine Cover Decals for 1997-2003 Grand Prix

$15.00

Our engine decals are custom cut to fit in the logos on your engine's beauty or valve cover. Available in many colors including carbon fiber ...more >>

NGK V-Power and Iridium Spark Plugs

NGK V-Power and Iridium Spark Plugs

$19.99

About the V-Power. Modern lean-burning, fuel efficient engines create a new set of requirements for spark plugs. NGK Spark Plugs answered ...more >>

Hypertech PowerStat Thermostats - 3.8L V6 Engines

Hypertech PowerStat Thermostats - 3.8L V6 Engines

$14.49

From the laws of physics, cooler air is denser than warmer air. Since horsepower increases as the amount of air and fuel burned increases, c ...more >>

K&N Air Filter Recharging Kit 99-5050

K&N Air Filter Recharging Kit 99-5050

$11.49

K&N offers a six-step maintenance system that's designed to recharge any K&N Filtercharger Air Filter. The kit includes Filtercharge ...more >>

K&N Oil Filters for V6 Engines

K&N Oil Filters for V6 Engines

$11.23

K&N Performance Gold Oil Filters for automotive applications have been constructed from the ground up to satisfy the high performance ...more >>

HP Tuners VCM Suite Tuning and Scanning Tool

HP Tuners VCM Suite Tuning and Scanning Tool

$499.00

What is VCM Suite? VCM Suite is not your traditional handheld device or programmer - it is much more powerful. It is a comprehensive tu ...more >>

K&N Drop In Replacement Air Filter 33-2063-1

K&N Drop In Replacement Air Filter 33-2063-1

$49.99

APPLICATION LIST 1994-1996 BUICK REGAL 3.1L V6 F/I - All 1994-1998 BUICK REGAL 3.8L V6 F/I - All 1994-2001 CHEVROLET LUMINA 3.1 ...more >>

K&N Drop In Replacement Air Filter 33-2141-1

K&N Drop In Replacement Air Filter 33-2141-1

$47.99

APPLICATION LIST 1999 BUICK CENTURY 3.1L V6 F/I - All 1999-2004 BUICK REGAL 3.8L V6 F/I - All 1999-2003 PONTIAC GRAND PRIX 3.1L ...more >>

SCT 7416 X4 Power Flash GM OBDII Plug and Play Power Programmer

SCT 7416 X4 Power Flash GM OBDII Plug and Play Power Programmer

$399.00

The X4 Power Flash arrives pre-loaded with DYNO Proven tune files that INCREASE HORSEPOWER and TORQUE! Programming your vehicle with one of ...more >>