🚗 Shift into a smoother future!
Hapco Products' Slick Shift is a 16 oz. transmission additive designed to restore smooth shifting and acceleration by removing gum and varnish buildup. It acts as a lubrication agent to prevent future issues and is safe for all types of transmissions, compatible with any transmission fluid.
B**O
If you shift slips, this can help!
I bought a 928 that had slippage in the shifting. We took Some of the old transmission Fluid out and added the slick shift. Drove it around the block and now it doesn’t slip. Amazing! Most transmission shops didn’t want to touch my car. This product made a difference! Thank you.
I**L
Saves a Lot compared to mechanic doing the work
Not perfect- BUT Good
H**.
Does just like it saids happy customer.
This product works so great my transmission shift really great since I used this.
M**L
Helped fixed my shifting issue
Easy to install and seems to fix my slipping issue when shifting
R**B
I had my Doubts
I had my doubt this would workAfter I put it in, it was a matter of a few miles that I noticed how the transmission not only shifted better but was much quieterHope it lasts
Trustpilot
3 weeks ago
1 day ago
