Buick GS 455 Parts & Accessories

Buick GS 455 Parts & Accessories

The Buick GS 455 is one of the most powerful muscle cars of the early 1970s, fitted with Buick's legendary 455 cubic inch big-block V8 producing up to 360 horsepower from the factory. Performance parts for the GS 455 cover exhaust systems, suspension upgrades, and intake components for real muscle car builds.

Popular Upgrades

Hooker Headers and Flowmaster cat-back exhaust systems are the top GS 455 performance upgrades, unlocking significant power from the torque-heavy 455 and adding an authoritative exhaust note. Stage 1 carburetor kits, cold air intake components, and Edelbrock intake manifolds are also popular power-adders.

What exhaust fits the Buick GS 455?

Performance headers from Hooker Headers and cat-back exhaust systems from Flowmaster are the definitive exhaust upgrades for the Buick GS 455, improving exhaust scavenging for the 455 big-block and delivering a deep, rumbling muscle car sound.

How do I improve handling on the Buick GS 455?

Lowering springs, performance shock absorbers, and heavy-duty front and rear sway bars are the most effective suspension upgrades for the GS 455, reducing body roll on the A-body chassis and improving corner-exit traction from the powerful 455 V8.

Explore related categories: Exhaust Systems, Suspension Upgrades, Cold Air Intakes.