TrXL Performance
Software | Hardware | Styling
GRAIL Valved Exhaust System for the Audi R8 V10 (4S) OPF—motorsport-inspired, precision-crafted from stainless steel, and acoustically tuned to befit a high-performance sports car. ECE-approved and requiring no registration.
Audi R8 V10 (4S) OPF GRAIL Valved Exhaust System
The Audi R8 V10 (4S) OPF is both an icon and a masterpiece of engineering—featuring a free-revving ten-cylinder engine that radiates pure fascination. Our GRAIL valved exhaust system captures this character and amplifies it: precision-engineered, motorsport-inspired, and acoustically orchestrated in a manner befitting a high-performance sports car.
Highlights:
Unmistakable 5.2-liter V10 – made even more distinctive and motorsport-inspired with GRAIL. Intense driving experience – immediate acoustic dynamics that emotionally underscore every acceleration. ECE Type-Approved – no registration required* in all ECE-recognizing countries. Crafted from high-quality L304 stainless steel. CNC-milled precision components – maximum durability and perfect dimensional accuracy. Flow-optimized piping – optimal exhaust flow and thermal stability. Developed by German engineers – the highest precision in design and manufacturing.
Technically sophisticated – perfectly integrated.
The exhaust valves operate with vehicle-specific tuning and meet all legal requirements.
Our team is available to provide advice in advance regarding individual inquiries.
*Applies to vehicles with EU registration. For imported vehicles, please consult our support team in advance.

















Jordan Barnes (verified owner) –
Everything fit perfectly and worked exactly as described.
Katherine Wallace (verified owner) –
Installation was smooth and hassle-free.
Emily Hamilton (verified owner) –
Installation was smooth and hassle-free.
Russell Flores (verified owner) –
Everything aligned perfectly during setup.
Arthur Ward (verified owner) –
Installation was smooth and hassle-free.
Carl Bailey (verified owner) –
The materials feel premium and well-made.
Eugene Perry (verified owner) –
The finish is clean and professional.
Alexander Roberts (verified owner) –
Highly recommend this product.
Gerald Cox (verified owner) –
Exceeded my expectations in terms of quality.
Timothy Sanchez (verified owner) –
The build quality feels solid and durable.
Nicholas Young (verified owner) –
Very impressed with the overall performance.
Roger Richardson (verified owner) –
The craftsmanship is excellent.
Carl Bailey (verified owner) –
Very reliable company with excellent communication and outstanding products. Everything arrived safely and exactly as ordered.
Gabriel Hughes (verified owner) –
Dylan Coleman (verified owner) –
Looks even better in person than in photos.
Adam Morris (verified owner) –
The performance is smooth and dependable.
Jacob Robinson (verified owner) –
Andrew Moore (verified owner) –
Everything functions exactly as it should.
Jessica Simmons (verified owner) –
Everything functions exactly as it should.
Jessica Simmons (verified owner) –
Exceeded my expectations in terms of quality.
Eugene Perry (verified owner) –
Ronald Harris (verified owner) –
I couldn’t have asked for a better experience. The product matched the description perfectly and has exceeded my expectations in every way.
Ronald Harris (verified owner) –
Very happy with how it turned out.
Michael Johnson (verified owner) –
Definitely worth the investment.
Michael Johnson (verified owner) –
Great quality and exceeded my expectations in every way.
Walter Morgan (verified owner) –
Everything functions exactly as it should.
Steven Thomas (verified owner) –
The product was exactly as described and worked perfectly after installation. Great quality, excellent communication, and fast shipping made this a fantastic experience.
Hannah Jordan (verified owner) –
Very impressed with the overall quality. Everything fit perfectly, worked immediately, and the entire process from ordering to delivery was seamless.