Download the cylinder head spec sheet< The Mast Motorsports cylinder head product line is completely manufactured from a raw casting to a finished cylinder head in the USA located in Nacogdoches Texas. Mast refuses to compromise on materials and methods that may jeopardize longevity, performance, and quality. When buying Mast Cylinder heads, you are getting the highest level of quality and performance on the market. Full Send, no compromises, no"> Download the cylinder head spec sheet< The Mast Motorsports cylinder head product line is completely manufactured from a raw casting to a finished cylinder head in the USA located in Nacogdoches Texas. Mast refuses to compromise on materials and methods that may jeopardize longevity, performance, and quality. When buying Mast Cylinder heads, you are getting the highest level of quality and performance on the market. Full Send, no compromises, no"> Download the cylinder head spec sheet< The Mast Motorsports cylinder head product line is completely manufactured from a raw casting to a finished cylinder head in the USA located in Nacogdoches Texas. Mast refuses to compromise on materials and methods that may jeopardize longevity, performance, and quality. When buying Mast Cylinder heads, you are getting the highest level of quality and performance on the market. Full Send, no compromises, no"> LS7 305cc 4.125" (+) Bore - Pair Black Label CNC Cylinder Head-be Skip to content

LS7 305cc 4.125" (+) Bore - Pair Black Label CNC Cylinder Head

Marsoni M251S
Sale price$1526.00
Pay 4 payments of $381.50 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
LS7 305cc 4.125" (+) Bore - Pair Black Label CNC Cylinder Head>Download the cylinder head spec sheet< The Mast Motorsports cylinder head product line is completely manufactured from a raw casting to a finished cylinder head in the USA located in Nacogdoches Texas. Mast refuses to compromise on materials and methods that may jeopardize longevity, performance, and quality. When buying Mast Cylinder heads, you are getting the highest level of quality and performance on the market. Full Send, no compromises, no
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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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4.3 ★★★★★
Based on 1598 reviews
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J
Verified Purchase
James C Hobson
San Leandro, US
★★★★★ 1
GARBAGE. Don’t waste your money
Absolute trash. The low pressure o-ring (orange) broke and split and broke in half after less than two hours of installation. Don’t waste your time and money on these cheap Chinese o-rings. The OEM Honda o-rings are literally cheaper and light years ahead of these in quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 8, 2026
M
Verified Purchase
My own opinion
Louisville, US
★★★★★ 5
Works great!!
Works great. Just dip them in the power steering fluid before putting them on.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2025
M
Verified Purchase
Mi
Port Orchard, US
★★★★★ 5
Reliable, Eco-Friendly, and Great Value Air Filter
Size: 64115a1bdb6&13718691835, Size: 64115a1bdb6&13718691835
Very satisfied with this air filter! It fits perfectly and was easy to install without any hassle. The filtration performance is impressive—helping to keep the air inside the car fresh and clean. The simple packaging is eco-friendly, which I appreciate. Reliable quality and reasonable price make this a great choice for regular replacement. Highly recommended!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 19, 2026
A
Verified Purchase
APM707916
Houston, US
★★★★★ 5
Perfect replacements 👍🏼
Size: CF11182&CA12051, Size: CF11182&CA12051
Perfect fit at an affordable price. Engine air filter is good quality, but the cabin air filter is way better than the stock one. They even include instructions.
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Reviewed in the United States on May 7, 2026
D
Verified Purchase
Diana
Bozeman, US
★★★★★ 5
Worth every penny!
Size: CF11182&CA12051
I have a 2020 Honda Civic Sport, and these filters fit perfectly. I was hesitant in purchasing because it said that its a frequent returned due to compability. Installation was a breeze after watching a quick YouTube tutorial, although it does come with instructions/manual. They look solid and durable. They came individually wrapped. I’m hoping they help with the odor and fogging issues caused by the old filters. Honda service wanted to charge me $63 for the cabin filter alone, so this was definitely a much better deal. I would purchase again in the future. The item ID that I purchase is CF11182&CA12051.
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Reviewed in the United States on May 29, 2026

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