Performance Pack

Performance Packs

See what people are saying about Sonnax Performance Packs:

Sonnax really nailed it with this kit."

P. Barrett
Owner of Level 10 Transmissions, after ordering his 20th Sonnax 4L60E Performance Pack.
Hardyston, N.J.

The Performance Pack works like a dream."

Speed Rated Motorsports
Fort Pierce, Fla.

The best working performance units we have done, and that's not from me, but my customers."

B. Bastedo
Advanced Transmission Care
Mooresville, N.C.

In a nutshell, I love it. It shifts exactly like I think it should. Not too hard, not too soft. Harder acceleration and the shifts firm up nicely."

K. Lindsay
Lindsay Transmission Service
Warrensburg, MO

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