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- USA
- CAN
Ships within 48 hours · Estimated delivery Aug 19 - Aug 24
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For Your Every Summer RSVP, with Code: SUMMER15
Description
1959-1964 Chevrolet Biscayne Performance Muffler Flowmaster StainlessOverview: Flowmaster has taken the laminar core of our classic HP 2 muffler and wrapped it in a new compact square case. The new Super HP 2 Series muffler offers the same great performance benefits and moderate tone that you would expect from our laminar flow mufflers, now in a new sleek styling. These mufflers are available in either a 409S stainless steel case or a polishable 304S stainless steel case and in sizes ranging from 2. 00 in., 2. 25 in.
Overview:
Flowmaster has taken the laminar core of our classic HP-2 muffler and wrapped it in a new compact square case. The new Super HP-2 Series muffler offers the same great performance benefits and moderate tone that you would expect from our laminar flow mufflers, now in a new sleek styling. These mufflers are available in either a 409S stainless steel case or a polishable 304S stainless steel case and in sizes ranging from 2.00 in., 2.25 in. and 2.50 in. These mufflers are covered by Flowmaster's Lifetime Limited Warranty.
Features:
Specs:
Applications:
- 1959-1964 Chevrolet Biscayne 283 CID
- 1959-1961 Chevrolet Biscayne 348 CID
- 1961-1964 Chevrolet Biscayne 409 CID
- 1962-1964 Chevrolet Biscayne 327 CID
- 1963-1963 Chevrolet Biscayne 427 CID
- 1959-1964 Chevrolet Bel Air 283 CID
- 1961-1961 Chevrolet Bel Air 348 CID
- 1962-1962 Chevrolet Bel Air 327 CID
- 1959-1964 Chevrolet Impala 283 CID
- 1959-1961 Chevrolet Impala 348 CID
- 1961-1964 Chevrolet Impala 409 CID
- 1962-1964 Chevrolet Impala 327 CID
- 1963-1963 Chevrolet Impala 427 CID
Emissions:
- This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
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
4.4 ★★★★★
Based on 23 reviews
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Product Reviews
★★★★★ 5
Cool, Comfortable, and Worth Every Penny!
Color: Light Gray, Size: Standard
I’m honestly impressed with these pillowcases! From the first night, I could feel the difference—they stay noticeably cool, which is perfect if you tend to sleep hot like I do. The fabric feels silky smooth against the skin without being slippery, and it’s really gentle on both my hair and face.
I’ve also noticed I wake up less sweaty and more comfortable overall. They fit my pillows well and don’t slip off during the night, which is a big plus. After washing, they held up great—no fading, shrinking, or loss of softness.
If you’re looking for pillowcases that actually help keep you cool and comfortable through the night, these are definitely worth it. I’ll be buying more!
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Reviewed in the United States on April 7, 2026
★★★★★ 5
Extremely cold, silky, gentle on hair
Color: White, Size: Queen
This was so cold when I removed it from the package that at first I thought it would be too cold. It was as if it had been in a freezer. I really like how silky it is on my face. (I can't stand a rough feeling pillowcase.) It is also gentle on my curly hair. The pillowcase can warm up from being slept on, but a shift of just a few inches gets back to wonderful cold. I highly recommend this as an extremely cool, silky smooth fabric. These are much colder than my very expensive miracle sheets.
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Reviewed in the United States on April 22, 2026
★★★★★ 5
Freaking Amazing 🤩
I never write reviews but these pillow cases absolutely deserve one!!! These are absolutely amazing! So soft and cool! I sweat so bad every night!! I wake up and my hair, shirt and pillow are drenched!!! I slipped these bad boys on as soon as they came in, and let me tell you! They were cold to the touch, I woke up this morning and I wasn’t sweating! I thought $20 something dollars was a little expensive for 2 pillow cases but was totally worth it! We love love love them!🩷🩷🩷Hubby approved😉
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Reviewed in the United States on May 18, 2026
★★★★★ 5
Stretchy Material and Cooling Fabric
Color: Light Gray, Size: Standard, Color: Light Gray, Size: Standard
Material: is very stretchy and cools well. It has a zipper which is good because the fabric is very soft and slippery and if it didn’t have a zipper the pillow would not stay in the case.
Durability: zipper works great and material is easy to clean.
Color: I have the gray and my daughter has the pink. Both colors as advertised.
Value: Good value and I got what I expected.
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Reviewed in the United States on May 14, 2026
★★★★★ 4
Very soft and cool.
Color: Dark Gray, Size: Queen
Very comfortable and cooling. But after a couple of washes the stitching starts to unravel.
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Reviewed in the United States on May 3, 2026
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