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Ships within 48 hours · Estimated delivery Aug 14 - Aug 19
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Description
Ferrea Competition Plus Exhaust Valve Kit 31.5mm +1mm - BMW / M50 / M51 / M52 / M54 / S50Actual part may differ from image above. M50 M54 & S50 engines contain 24 valves 12 intake and 12 exhaust this Set contains 12 +1mm oversized exhaust valves. Ferrea Competition Plus Valves have built a reputation as the industry's most reliable extreme duty valve. To manufacture the valves we use special aerospace quality alloys, including the EV8 Z18, which provides high tensile strength. An exclusive two step slow forging process ensures proper
Actual part may differ from image above.M50-M54 & S50 engines contain 24 valves - 12 intake and 12 exhaust this Set contains 12 +1mm oversized exhaust valves.
Ferrea Competition Plus Valves have built a reputation as the industry's most reliable extreme duty valve. To manufacture the valves we use special aerospace quality alloys, including the EV8-Z18, which provides high tensile strength. An exclusive two-step slow forging process ensures proper grain flow and virtually eliminates any damage to the material structure. The valves are then heat-treated and stress-relieved over a 48-hour period, which is the crucial base of our molecular integrity. These valves feature avionics-quality hard chrome along with a specially applied hard tip.
- Valve Tip Length 3.7mm
- Stem Diameter 5.96mm
- Valve Length 106mm
- Valve Head Size 0.040" / 1mm
- Valve Head Diameter 31.5mm
- Valve Type Exhaust
- Valve Stem Diameter 5.96mm
- Valve Material Stainless Steel, Super Alloy
- Valve Face Dish
Replaces OEM Part # 11-34-1-739-823 / 11 34 1 739 823 / 11341739823
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.9 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
It’s nice! Love b.tan products
Color: Ultra Dark Bronze
Works well, I had a nice glow after one sit in a tanning bed using it. Nice smell, watery base. Make note that it’s an accelerant as well as a TINT, my hands and feet had some splotching after because I didn’t know that.
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Reviewed in the United States on May 19, 2026
★★★★★ 5
Great Tanning Oil
Color: Medium Glow
This tanning oil works really great! It’s not too oily and doesn’t clog when you spray! The scent is so good!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2026
★★★★★ 5
Works great!
Color: Ultra Dark Bronze
This stuff is magical. Goes on dry, not greasy but be careful, no spf so you may burn but what a tan! Also smells of tanning bed spray. Used it at the beach! Incredible!
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Reviewed in the United States on April 13, 2026
★★★★★ 4
Great Natural Tan, Just A Little Tacky
Color: Ultra Dark Bronze
This tanning spray definitely helps give a nice natural-looking tan without looking orange or streaky.
I’ve used it outside in the sun, in the tanning bed, and while floating in the pool, and it worked well in all three situations.
The only downside for me is that it feels very tacky on the skin after applying.
Because of that, I definitely prefer using it while relaxing in the pool since it feels less noticeable there.
Overall, the tan results are really pretty and natural, so I’ll keep using it despite the sticky feeling.
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Reviewed in the United States on May 19, 2026
★★★★★ 5
I’m Tan AF
Color: Ultra Dark Bronze
Couldn’t ask for a better tanning oil. The oil itself and lightweight and more hydrating feeling than greasy. I get a really good color after one use and my skin feels nourished. Smells great too!
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Reviewed in the United States on May 18, 2026
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