BTR LS3 Shaft Mount Rocker Arm Kit

Marsoni

M251S

$245.00

Get it in 3 business days with 1 day shipping. Friday, May 29

BTR LS3 Shaft Mount Rocker Arm KitBTR LS3 SHAFT ROCKER KIT Before purchase, please check fitment with your cylinder head, this kit is ONLY for square port LS3 heads. Please check fitment with all aftermarket cylinder heads. Pre assembled for ease of installation, ICT Billet includes BTR branded ARP Style 12 Point Rocker Arm Trunnion Bolts. A true drop in Shaft Mount Rocker System. LS3 versions include the offset intake valve rocker arms. Performance minded engine builders know there

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I really adore these! The material is soft but good quality and not thin. They’re perfectly cut to flatter any body, and the stretchy waistband is thick but not to the point where it digs in your skin. I normally wear a size L and I sized up to an XL and I’m so happy with the fit. The brief style is so adorable and I give these a 10/10 for being the most comfortable underwear I own

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Reviewed in the United States on March 6, 2025

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Janell

Grantham, US

★★★★★ 4

Comfortable

Size: XX-Large, Color: Dark Colors

They are stretchy and comfortable the colors are nice. Wish they had more variety.

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Reviewed in the United States on February 16, 2026

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CPW

Massapequa, US

★★★★★ 5

Waited to review...

Size: Small, Color: Dark Colors

SO so hard to buy underwear online. I liked Hanes cotton boxer briefs. but they changed the fabric a few years ago. While I preferred the cotton feel of the old ones, I eventually had to move along and try something else. These wash very nicely--and I dry mine in the dryer with no shrinkage. They don't ride up which is awesome. I have had mine for months so I can fully recommend them now.

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Reviewed in the United States on August 19, 2025

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Daniele Coverdale

Carnegie, US

★★★★★ 5

Cute and comfortable

Size: Medium, Color: Dark Colors

Super cute and comfortable.

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Reviewed in the United States on March 10, 2026