GRAIL Valved Exhaust System | ECE | suitable for Mercedes-Benz G500 4x4² W463

GRAIL Valve Exhaust System
suitable for Mercedes-Benz G 500 4×4² (W463)

If you drive the G 500 4×4², you already enjoy extraordinary off-road performance and distinctive engineering – but when it comes to sound, there's room for so much more. The GRAIL Valve Exhaust System uses the factory Sidepipe layout and replaces key components with flow-optimized parts made from 304L stainless steel, featuring precisely tuned valve integration. The result: a noticeably more powerful, deep V8 sound, fully ECE-compliant and seamlessly integrated into the Mercedes control system – for drivers who want to acoustically underline the special presence of their 4×4², without compromising everyday usability or registration.

Highlights

• ? Deep, full-bodied V8 sound that acoustically amplifies the off-road presence of the 4×4²
• ? Precise fitment to the factory Sidepipe system – optimized exhaust flow for consistent sound development
• ? ECE type-approved* – no registration required in all participating ECE countries
• ? Developed by German engineers – for the highest levels of precision and quality
• ? Premium 304L stainless steel
• ? CNC-machined components – maximum durability and performance
• ? Vehicle-specific installation - precisely fitted and thoughtfully engineered
• ? Model-dependent Valve integration: OEM Valve solution utilised, always optimally tuned and legally compliant

TÜV / ABE available upon request

We currently ship within Europe only.

If a part is not available, we will contact you with an estimated wait time.

If you wish to return a product after receiving it, we offer a 14-day returns policy. Custom-made products are not eligible for return, and return shipping is at the customer's expense. Full delivery and returns terms are on the “Delivery Information” page — the link is at the bottom of the page.

Products come with a warranty, detailed in a certificate included in the box.

To make a valid claim, you must prove the damage was not caused by you and that the warranty certificate is valid.

Full terms are on the “Terms & Conditions” page — the link is at the bottom of the page.