I've got 2 sets of 4age velocity stacks (trumpet) to let go,
no brand, locally made, can install in air surge tank replacing old stacks,see attachment.
RM120 each set-SOLD OUT!!
Stumbled in online classified site that some are selling the electric jack & wrench. Looks good as if always DIY, then don't have to sweat to jack up and somemore can use the wrench to unscrew some tough bolt...