"EXTERNAL-WASTEGATE & SCREAMER-PIPE"
 

...i would like some advice regarding the above from you guys... what are the pros and cons of the above (is it legal / will it pass MOT?) - do the advantages outweigh the disadvantages or is it the otherway round! what is the sole purpose/use and benefit of the above and are there any alternatives... finally who could sort it out in terms of supplying and fitting it to the vehicle and what sort of price am i looking at!

all the above just for that 'sound'... put simply is it worth it?

projucer
51 reg classic wagon (NOT jdm)