This is what ive done to my engine, the latest is the 2.5" sports cat and milltek system that was fitted on sat.
Benny fitted the 4-1 manifold and lightened pulley when the cam chain was being changed.
Dbilas air intake scoop
K&N panel filter
De-restricted airbox
58mm ported throttle body
Dbilas inlet manifold
Regal 4-1 exhaust manifold
Pre-cat removed
2.5" Hoffman 200 cell sports cat
Milltek resonated catback system
Courtenay Lightened crank pulley
I'm hoping to take it to a rolling road this weekend to see what differance it has made.
Future plans are:
68mm throttle body.....onto the dbilas will be a pain in the ar$e to fit!
piper cams
courtenay lightened fly wheel
remap