S65 Modular Carbon Plenum

🏎️ Product Description – S65 Modular Carbon Plenum

Elevate airflow and performance for your BMW S65 engine. The Infinity Design Modular Carbon Plenum is engineered to maximize intake efficiency, delivering sharper throttle response and enhanced high‑RPM power. Crafted from 100% pre‑preg carbon fiber, this plenum combines lightweight strength with a premium motorsport aesthetic.

Unlike standard plenums, the modular design allows for future expansion and customization, making it ideal for both street and track applications. Precision CNC‑machined components ensure OEM‑style fitment, while the enlarged internal volume improves airflow consistency across all cylinders.

🔧 Key Features

• Construction: 100% pre‑preg carbon fiber, available in gloss or matte finish

• Modular Design: Expandable system for future upgrades and tuning flexibility

• Performance Gains: Improved throttle response and high‑RPM airflow efficiency

• Fitment: Direct OEM replacement, no permanent modifications required

• Precision Engineering: CNC‑machined flanges and connections for leak‑free installation

• Aesthetics: Premium carbon finish enhances engine bay appearance

Infinity Design’s S65 Modular Carbon Plenum is the ultimate intake upgrade — combining race‑proven engineering, dyno‑tested performance, and premium carbon craftsmanship.

If your item is in stock and the order is placed before 3 PM, it will ship the same day. Products that include ceramic coating are shipped the following business day. If the product or color you’re looking for is out of stock, you can join the waitlist by clicking the “Email When Available” button. We’ll notify you as soon as it’s back and provide an estimated restock time.

Custom Orders
For custom requests, please email us directly. We’ll review your order and provide an estimated delivery time based on the required manufacturing process.

Damaged, Incorrect, or Missing Items
If your order arrives damaged, incorrect, or missing parts, simply email us a photo along with your order number. We’ll arrange a refund or exchange right away. Contact us at info@ttmengineering.se and we’ll make it right.

Returns & Satisfaction
Unused and uninstalled products are eligible for a refund, exchange, or store credit. Unfortunately, once a product has been used or installed, we cannot accept returns or offer refunds. If you decide you don’t like a product after installation, it will not qualify for return.

Restocking Fee
A restocking fee of 20% of the original purchase price may apply to returned products. This fee covers the costs of processing and restocking. Please refer to our Policies Page for full details on exchanges and returns.