Which Different Cat-Cams

[joker83]

Which is the differents of this profile 421-428??

 

[fil_b]

i think

the 428 cams can be run off the standard ecu

 

[joker83]

i think

the 428 cams can be run off the standard ecu

With no remap???

 

[mark123]

Yes, but you need a remap to get the full benefit.

 

[fil_b]

henk can do custom map to suit

 

[joker83]

428 and 421 have problem with original pistons?

 

[maupineda]

^As above, what if head has been skimmed? How much skimming can you do with 428's or 421's?