does anyone else have a problem with the valva box?????
my motors on 17s superchipped k&n and scorpion pipe + de catted giving about 145 bhp.
its recently making some awful rumbling noises and vibrations through the peddels when driving and a constant whirring noise. Have been told needs a new cog box.
Has this been the case for everyone else ????
help appreciated
ps does anyone know a reasonable price to pay for a recon box and fitting been getting quotes for about £400.