M3 G80 / G81

Exhausts, intakes and carbon fiber parts for the BMW M3 G80 / G81

For your M3 G80 there are Valvetronic catback exhausts, downpipes and cold air intakes that fit the S58 engine. You can add a strut brace and an oil cooler guard to the engine bay, and prepreg dry carbon fiber parts such as the CSL hood, front grilles and diffusers to the body. Most are shared with the M4 G82, the exhausts also fit the M2 G87, and BYC Performance imports all of them from leading manufacturers around the world.

BMW M3 G80 exhaust: mid-pipe, material and diameter

A catback replaces the line back to the tips without touching the downpipes. The Valvetronic catbacks come with their own electronic control box and wireless remote for opening and closing the valves. The mid-pipe design affects the sound:

• Single mid-pipe: a cleaner, more tonal note that suits daily driving.
• Double mid-pipe: a more aggressive, fuller note.
• Equal-length mid-pipe: a more even note at high revs.

Besides stainless steel there are single mid-pipe and equal-length mid-pipe titanium systems. Titanium is lighter; you choose gold, blue, purple or original titanium color and a pipe diameter of 2.75 in (70 mm), 3 in (76 mm) or 3.5 in (90 mm). You can choose the tips in matte carbon fiber, gloss carbon fiber, gloss black or stainless steel.

Downpipe options

The downpipe is the pipe between the turbo outlet and the catback.

• 200-cell catted: heat-shielded stainless steel, in standard and equal-length designs.
• Catless: the stainless steel downpipe with "De-Cat" in its name.
• No catalyst information in the name: the heat-shielded stainless models and the titanium downpipe; ask on WhatsApp about these before you order.

Because the de-cat downpipe has no catalyst, check the emission rules where the car will be driven before you buy it. Ask on WhatsApp whether a downpipe will need a software update.

Cold air intakes

The S58 intakes differ in material and in where they draw air from. There are carbon fiber, titanium and silicone versions, and the behind-grille ones take air from right behind the front grille. On the titanium versions you choose a 3 in (76 mm) or 3.5 in (90 mm) pipe diameter and gold, blue, purple or original titanium color. The air filter can be grey, red, blue, black or green.

Engine bay

The carbon fiber 3-point and 4-point strut braces and the aluminum or carbon fiber oil cooler guards are shared with the M2 G87 and M4 G82. The 3-point brace mounts to the front panel at one point, the 4-point at two. The M3 G80 and M4 G82 also get an aluminum strut brace in grey or black, a carbon fiber engine cover, a carbon fiber engine bay cover and strut brace set, and a titanium engine bolt kit.

Carbon fiber body parts

Front grilles come in CSL, ST and V designs; if your car has Active Cruise Control (ACC), choose the ACC version of the CSL grille. The hood options are a carbon hood and CSL, CSL vented and GTS vented hoods. Besides front lips, canards, fenders and side skirts, there are rear diffusers, spoilers and the CSL trunk lid. The CSL trunk lid and the slim spoiler have a ducktail shape; you can choose the slim spoiler in CS, MP or PSM style and the MP spoiler in forged carbon or prepreg dry carbon fiber. Every carbon body part comes in gloss or matte finish, and you decide which on the product page.

Frequently asked questions

Do the parts also fit the M4 G82?

Parts with "M3 G80 / M4 G82" in the name fit both models. The CSL trunk lid, though, is for the M3 G80 only. For M4 parts, see the M4 G82 / G83 category.

Do they fit the M3 Touring (G81)?

No product name mentions the G81; ask about Touring fitment before you order. The trunk lid and trunk-mounted spoilers do not fit the Touring.

When do the parts ship?

Lead time for sourced-to-order parts is confirmed on WhatsApp right after your order. Parts ship via partner couriers and carry a 24-month BYC warranty against manufacturing defects.