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Kooks 04 Pontiac GTO Base 1-7/8" x 3" Header & Catted GTO Conn Kit

Marsoni M251S
Sale price$1297.92
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Get it in 3 business days with 1 day shipping. Friday, May 29
Kooks 04 Pontiac GTO Base 1-7/8" x 3" Header & Catted GTO Conn KitSKU: 2411H420 UPC: 842422178789 Kooks 1 7 8" x 3" Long Tube Headers & GREEN Catted Connection Kit for 2004 Pontiac GTO 5. 7L LS1 The Kooks 2411H420 1 7 8 inch long tube headers and GREEN catted connection kit delivers the complete bolt on exhaust upgrade for the 2004 Pontiac GTO with the 5. 7L LS1 V8, replacing factory manifolds to unlock dyno proven gains of 4560 rear wheel horsepower and 4055 lb ft of torque through equal length primaries, merged
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4.4 ★★★★★
Based on 497 reviews
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C
CGR
Chelsea, US
★★★★★ 5
perfect
I chose a size Large, which I normally wear in women's underwear. I am 5'4" and 158 lbs. The fit was perfect. They stayed put and didn't ride up. The material is soft. Machine wash and dry well. No complaints to speak of.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 20, 2024
N
Verified Purchase
NC Native
Carnegie, US
★★★★★ 1
Poor quality, easily rips at seams.
Size: Medium, Color: Organic Cotton 5 Black Pack
Fit is great but these things do not hold up. I have some Gap hipsters that are older and they are much higher quality. These rip and tear way too easily.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 15, 2025
A
Verified Purchase
Alanna Humphrey
Houston, US
★★★★★ 4
Runs small. Get a size up.
Size: Large, Color: Organic Cotton 5 Pack-bwg
Runs a bit small. Kind of tight. Size up.
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Reviewed in the United States on February 26, 2026
A
Verified Purchase
Amelia Bradley
Chelsea, US
★★★★★ 3
Elastic band is not great
Size: X-Large, Color: Organic Cotton 5 Black Pack
The cotton material is comfortable and seems like it will last some time because it isn't thin like most. However, I could really use a thicker, more durable elastic band.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 29, 2025
D
doctur44
Port Orchard, US
★★★★★ 5
Comfortable
Size: Large, Color: Organic Cotton 5 Black Pack
Comfortable and decent looking black underwear in a hipster, boy cut style. Material is soft and lightweight, kind of thin, but since they’re black they’re not see through at all. The elastic band at waist is also thin and not too tight so it’s very comfortable and doesn’t dig in at all. Five identical pairs in the order makes this a decent value, especially at this price and for Organic cotton material. The large size was perfect for me I sized up based on the recommendations). I’m pretty happy with this order.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 17, 2024

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