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Ships within 48 hours · Estimated delivery Aug 3 - Aug 8
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Description
Mishimoto Silicone Reducer Coupler 45 Degree 3.5in to 4in - BlackThe expansive line of silicone couplers from Mishimoto continues to expand! We now offer a broad range of 45 degree transition couplers applicable for use in both coolant and air passage systems. Finding the ideal coupler for your project can be challenging, but we make it easy with a massive selection of various bends, sizes, and colors to achieve your goals. Our couplers feature four layers of silicone, each divided by a layer of heat resistant
The expansive line of silicone couplers from Mishimoto continues to expand! We now offer a broad range of 45-degree transition couplers applicable for use in both coolant and air passage systems. Finding the ideal coupler for your project can be challenging, but we make it easy with a massive selection of various bends, sizes, and colors to achieve your goals. Our couplers feature four layers of silicone, each divided by a layer of heat-resistant embedded fibers. This combination results in maximum durability in extremely harsh environments. Our silicone couplers rated for temperatures up to 330°F and can withstand substantial boost pressures. These couplers are available in black, blue, and red, and as with all our products, they include our signature Mishimoto Lifetime Warranty.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
4.3 ★★★★★
Based on 26 reviews
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Product Reviews
★★★★★ 5
Nice fit!
Color: Saxony Blue Melange, Size: X-Large
Great fit. Very comfy. Not too heavy. (Think late spring, early fall weather.) Material and stitching seems high quality. Slightly stretchy fabric. We’ll see how it holds up to wear and washing, but so far so good. I’ve already purchased another in a different color.
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Reviewed in the United States on November 1, 2025
★★★★★ 5
Fits true to size and good quality
Color: Black Grey Heather, Size: Large
I gave this 5 stars because I was pleasantly surprised by the fit and quality. The zipper is nice, it zips firm, it's not flimsy like a cheap zipper. For reference I am 5'7", athletic build, and 198 pounds. I ordered a size large and it fits perfect. I will buy more for sure.
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Reviewed in the United States on November 9, 2025
★★★★★ 5
Great fit, excellent material. Will buy more!
Color: Cobalt Heather, Size: Small
Great quarter zip comparable to the high end designer brands. Buttery material, well fitted. Runs a bit big so I sized down and it’s a perfect trim cut fit. Will buy other colors. Would like to see some patterns in addition to the solid colors. I’m 5’10” 165lbs and small size fits perfectly.
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Reviewed in the United States on September 20, 2025
★★★★★ 5
Perfect for the gym!
Color: Cobalt Heather, Size: XX-Large
I bought 2 (black and blue) and wear them to the gym weekly. They wash & dry very well! They are nice enough for casual wear too. I’ll probably buy a 3rd color soon!
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Reviewed in the United States on April 23, 2026
★★★★★ 5
Good quality
Size: XX-Large, Color: Dark Green Melange
I love these quarter-zip pullovers. I bought this one as a gift, but I personally own two others myself, which should say a lot. They’re comfortable, lightweight, and extremely versatile. I wear mine for golf, casual office days, and layered when it’s cooler out—they pair well with just about anything.
For the price point, they really can’t be beat. The look and feel are comparable to options that cost significantly more. Great value, great performance, and a sharp, clean style. I’ll likely keep buying more.
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Reviewed in the United States on March 3, 2026
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