BMW M5 F90 / M8 F92 | Valvetronic Catback Stainless Steel Exhaust System

BMW M5 F90 / M8 F92 Valvetronic Catback Stainless Steel Exhaust System

Engineered for BMW M5 F90 and M8 F92 Coupé owners, this Valvetronic Catback Stainless Steel Exhaust System ships with its own electronic control box and wireless remote. Valve management is integrated during exhaust installation and afterward operated via the included remote. Imported from leading manufacturers around the world and quality-controlled by BYC Performance, this system bolts directly to the F90/F92 mid-pipe v-band.

The F90 M5 + F92 M8 share the same S63B44T4 4.4L V8 biturbo (600-625 hp) and identical catback geometry. The Valvetronic catback replaces the OEM muffler; with the valve closed it delivers a daily-friendly OEM+ sound, and with the valve open it produces a tonal V8 biturbo track tone. T304 stainless steel construction ensures lifetime durability.

Key Features

• Included Electronic Control Box and Remote: System ships with its own valve control box and wireless remote.
• T304 Stainless Steel: Corrosion-resistant, lifetime rust-resistance.
• Dual-Mode Sound Character: Valve closed → daily-friendly OEM+, valve open → tonal V8 biturbo track note.
• CNC-Bent Piping: Smooth internal surface, flow-optimized geometry.
• OEM Tip Compatible: Fits factory F90 M5 / F92 M8 tip geometry.
• Mid-Pipe V-Band: Direct bolt-on after downpipe.
• OEM Hanger Compatible: Direct bolt-on fit to factory exhaust hangers.

Valvetronic vs. Straight Catback: Which?

This is the Valvetronic (remote-controlled) version:

• Valvetronic Catback (this product): Dual-mode, valve closed OEM+ daily, valve open tonal track. Control box + remote included.
• Straight Catback: Valveless full flow, constant aggressive motorsport tone, lower price.
• For daily-friendly modulation: Valvetronic preferred
• For constant aggressive tone: straight preferred

Stainless vs. Titanium: This Is Stainless

• T304 Stainless Steel (this product): Deeper tone, value pricing, lifetime rust-resistance
• Titanium: Noticeably lighter, sharper metallic note, heat-tint finish, higher cost

Installation Notes

1. Lift the vehicle, loosen rear bumper underbody screws.
2. Release the stock Valvetronic catback mid-pipe v-band clamp.
3. Disconnect the OEM Valvetronic actuator electrical connector.
4. Replace OEM exhaust hangers if worn.
5. Mount the included electronic control box, connect valve actuator wiring.
6. Hang the new catback, torque v-band (12 Nm).
7. Pair the remote and test valve operation.

Care & Maintenance

T304 stainless is corrosion-resistant. Wipe tips with a soft cloth. Re-check bolt torque after first 500 km.

FAQ

How is the exhaust valve controlled?
Via the included electronic control box and wireless remote.

How does it sound?
Calm and daily-friendly with the valve closed, noticeably fuller and more aggressive with the valve open. Tonal V8 biturbo character.

How does it differ from the straight catback?
This Valvetronic version is remote-controlled dual-mode. The straight catback has no valve and produces constant aggressive sound.

Does it fit the F10/F06?
No.

Does it fit the E60?
No.

Does it fit the M8 F93 / F91?
Same S63B44T4; catback geometry likely compatible. Verify before ordering.

Shipping time?
In-stock items ship within 1-3 business days via partner couriers. Parts sourced to order are delivered within 30 days of the order date at the latest.

Warranty?
Manufacturing defects are covered by a 24-month BYC warranty, in addition to your legal rights.

Why BYC Performance?

BYC Performance is a Turkey-based performance tuning specialist sourcing premium exhaust parts from leading manufacturers around the world. Our catalog includes BMW M5 F90 catback, BMW M8 F92 valvetronic exhaust, BMW M stainless catback, and more.