COMP Cams GM LS OEM Rocker Arm Upgrade Kit & Installation Tool

COMP Cams GM LS OEM Rocker Arm Upgrade Kit & Installation Tool

Marsoni

M251S

$105.97

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

COMP Cams GM LS OEM Rocker Arm Upgrade Kit & Installation ToolOur trunnion upgrade kit converts a stock LS series rocker arm into a captured trunnion for increased stability and stiffness. Compatible with stock geometry, our trunnion kit can be performed in 30 minutes with included 54702 TL tool. This Part Fits: Year Make Model Submodel 2001 2004 Avanti II Base 2008 2009 Buick LaCrosse Super 2004 2007 Buick Rainier CXL 2004 2005 Buick Rainier CXL Plus 2009 2015 Cadillac CTS V 2002 2005,2007 2014 Cadillac

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Overall this is a pretty decent phone mount. I have used it with both the windshield and vent mounts. The only problem I have is the design of the ball swivel. The socket contains a rubber piece to help increase the grip, but over time heat from the sun or the air vent makes the ball glue itself to this rubber piece. When you try to make an adjustment, the ball will not move in the socket and ends up breaking the socket. This is happened to me twice.

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Reviewed in the United States on November 13, 2025

Verified Purchase

Javier Garcia

Lake Worth, US

★★★★★ 5

Great Phone Holder

Style: Holder+Dash+Vent+Windshield

I bought the version with the suction cup mount and I’m very happy with it. It holds my phone securely in place and doesn’t move around while driving. It’s also very easy to place the phone in the holder and remove it when needed. The suction cup sticks well to the dashboard, and you can position it so the phone stays in a safe, easy-to-see spot while driving. Overall, a great and reliable phone mount. Highly recommend!

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Reviewed in the United States on March 12, 2026

Verified Purchase

diane gammons

Birmingham, US

★★★★★ 5

Almost perfect

Style: Screen+Charger

Solid mount. I’ve tried other ones but they don’t sit as nicely as this one. It also has a lot of adjustments to allow for using it any way you need it to so it is very versatile. The magnet strength is really good and holds my phone really well. Sometimes it feels too strong which I guess is a good thing. The charging works well but I wish the cable was a little longer

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Reviewed in the United States on April 21, 2026

Verified Purchase

Jin

Cuba, US

★★★★★ 5

Great Phone Mount

Style: Screen+Charger

Works great! It’s been a fantastic upgrade for my car. The installation was quick and seamless, and it fits perfectly with the Tesla interior. The wireless charging stays fast and stable. I highly recommend it.

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Reviewed in the United States on May 13, 2026

Verified Purchase

Todd Wahl

Massapequa, US

★★★★★ 4

Almost Perfect But With Workaround it Rocks

Style: Dash+Screen+Qi2 Charger, Style: Dash+Screen+Qi2 Charger

This works almost perfectly in my Tesla, with one small tweak for hot summer conditions. It holds my phone very well overall—I position it slightly off-center at about the 10 o’clock position. However, with a larger phone like the Galaxy S25 Ultra, the combination of weight and summer heat can cause the mount to slowly rotate as the suction cup loses some grip. I found a simple fix that works extremely well: applying a small amount of rosin (the same kind used for violin bows) to the friction point where the rotating arm meets the suction base. That added grip completely solved the issue. Now the mount stays exactly where I position it, even in the heat. Solid product, and with that minor adjustment, it performs exactly how I need it to.

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Reviewed in the United States on May 3, 2026