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Ships within 48 hours · Estimated delivery Aug 16 - Aug 21
For Your Every Summer RSVP, with Code: SUMMER15
Description
Fabspeed Sport Cat Downpipe - BMW F3X | 335i | 435iInject new life into your 335i or 435i with a high flow catted downpipe! Genuine 200 cell HJS catalyst instantly adds significant power, sound, and throttle response without triggering a check engine light! Features: Fits all BMW F30 F32 335i & 435i vehicles. We created two different flange styles to ensure proper fitment across all years Designed with a 200 cell HJS catalytic converter core for maximum performance and reliability; utilizes the same
Inject new life into your 335i or 435i with a high-flow catted downpipe! Genuine 200-cell HJS catalyst instantly adds significant power, sound, and throttle response without triggering a check engine light!
Features:
- Fits all BMW F30/F32 335i & 435i vehicles. We created two different flange styles to ensure proper fitment across all years
- Designed with a 200-cell HJS catalytic converter core for maximum performance and reliability; utilizes the same cat core from our Ferrari 458 Italia applications
- Direct bolt-on replacement; no cutting or welding required
- Does not trigger a check engine light
- 2lb weight reduction
- All Fabspeed performance products are backed by the Fabspeed Lifetime Limited Warranty
- IMPORTANT NOTE: There are two flange types for the 335i and 435i, depending on the wastegate style of the turbo. Pre 08/2013, a smaller flange is utilized. The build date of your car can be found on a sticker on the driver's side door jam. If you need assistance determining which version you have, please contact us before ordering.
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
4.9 ★★★★★
Based on 29 reviews
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Product Reviews
★★★★★ 5
Much much better than the standard sock
Size: X-Large, Color: (001) Black / Black / Castlerock
These socks are superb. Lots of padding in the right places, snug where it should be snug & loose where you don't want it to bind. They are marked with an 'L' for left foot, & 'R' for the right foot (it makes a difference in the fit being perfect. They stay up on your heel & don't slide down
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Reviewed in the United States on April 20, 2026
★★★★★ 4
4 lefts vs 2 rights
Size: Medium, Color: (001) Black / Black / Castlerock, Size: Medium, Color: (001) Black / Black / Castlerock
I ordered a set of three. I ended up with four left socks and two right socks lol. Granted it doesn’t matter unless you’re OCD. JEEZ.
Love the socks but not the attention to detail the sock company did on matching left/right marked socks.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
My favorite socks
Size: Medium, Color: (001) Black / Black / Castlerock
I love love, love the left and right socks one has an L one has an R and they fit so well and they’re so comfy for running jogging or walking. They are my favorite socks.
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Reviewed in the United States on January 8, 2026
★★★★★ 5
Hold up to tough wear - definitely recommend
Size: X-Large, Color: (001) Black / Black / Castlerock
These are my teens favorite socks. We've ordered multiple sets. Given that he tends to wear then as slippers I am really impressed with how they hold up. The extra large size is great for bigger feet. They wash well and I didn't notice any shrinkage, fading or pilling. This set is going to college with him.
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Reviewed in the United States on April 1, 2026
★★★★★ 5
Good quality
Size: Large, Color: (400) Royal / White / Mod Gray
To big! I am female size 9 and Amazon was recommending for me size L.
Yes, my socks is wearing my boyfriend. I need to buy smaller size
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Reviewed in the United States on October 13, 2025