Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
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For Your Every Summer RSVP, with Code: SUMMER15
Description
CSF 2020+ Audi C8 RS6/RS7 High-Performance Intercooler System (OEM PN 4K0 145 805 P / 4K0 145 806 B)Upgrade your 2020 and newer Audi C8 RS6 or RS7 with the CSF High Performance Intercooler System designed to optimize your forced induction setup. This intercooler system is engineered for excellence, providing superior cooling efficiency that enhances your engine's performance and reliability under demanding conditions. Crafted with premium materials, the CSF intercooler ensures durability while reducing intake air temperatures for more power and
Upgrade your 2020 and newer Audi C8 RS6 or RS7 with the CSF High-Performance Intercooler System designed to optimize your forced induction setup. This intercooler system is engineered for excellence, providing superior cooling efficiency that enhances your engine's performance and reliability under demanding conditions. Crafted with premium materials, the CSF intercooler ensures durability while reducing intake air temperatures for more power and improved throttle response.The design matches the OEM fit and finish precisely, making installation straightforward and hassle-free. It carries OEM part numbers 4K0 145 805 P and 4K0 145 806 B, ensuring compatibility and peace of mind for your vehicle upgrade. With CSF's commitment to quality, you get an aftermarket part that meets or exceeds OEM standards.
Whether you're building a street machine, track car, or a high-performance daily driver, this intercooler system supports your goals by delivering better cooling to help maintain consistent performance during spirited driving or motorsport activities. Trust CSF to provide a reliable cooling solution that complements your Audi's powerful engine.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 2494 reviews
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Product Reviews
★★★★★ 5
Cute and Comfy
Color: Multicolor B (5-pack), Size: Medium
These are cute and comfy with a great fit. True to size they are cool and comfortable for everyday wear. I was going to order more but the price went up so I'm just waiting for it to go back down to order again.
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Reviewed in the United States on May 18, 2026
★★★★★ 3
Not what I’d hoped
Color: Multicolor a (5-pack), Size: Small
The fabric is nice, soft without being overly bulky. The design was almost what I wanted. I’ve been trying to find underwear that won’t ride up and is comfortable to wear under leggings. The fabric has a LOT of stretch around the legs and deforms quickly. Then it rides up and wrinkles. Smaller leg openings might make the difference.
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Reviewed in the United States on April 1, 2026
★★★★★ 4
Great & Comfortable
Color: Multicolor B (5-pack), Size: X-Large, Color: Multicolor B (5-pack), Size: X-Large
I have bought 2 packs of this underwear. I love wearing them. They are very comfortable, and the size fits perfectly. I like most of the colors. The Bamboo Cool lettering on the front does come off after washing though. Otherwise the underwear has been great to wear.
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Reviewed in the United States on May 25, 2026
★★★★★ 5
Better than woxer imo
Color: Multicolor B (5-pack), Size: Large
I've been buying Woxers, but theyre super expensive for what youre getting. These are similar in feel and style so i switched over. Another nice thing is i dont have to deal with wedgies like i do with the woxers.
Theyre not perfect for wearing when its hot, youre still gunna sweat and these dont wick away sweat super well. But i havent seen many brands that do, and these are not the worst.
Im 5'7" and 145lbs and these are comfy and tight enough but not snug. They still leave a bit of indentation on the love handles. You CAN tell that youre wearing them under pant if they are tight.
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Reviewed in the United States on May 11, 2026
★★★★★ 5
Comfortable and cool. Does not ride up.
Color: 01-multicolour (4-pack), Size: Medium
Extremely comfortable. Stays cool. Ample coverage. Quality material. They do not creep up. I ordered a medium which I generally take a size small. I have reordered and will reorder again to add more colors to my collection.
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Reviewed in the United States on May 18, 2026
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