Just wanted some advice it's for my mk 4 astra 1.6, 16v sxi
what sparks plugs are good for performance and is it worth getting spark plug leads as well if yes which ones
Are cams/chips recomended and which ones
Also are power boost valve's worth getting.
(Price's and performance gain to all above would be most appriciated)
Any other mods anybody can advise me on would be a great help cheers