Think I read somewhere any modification ends the lams status... but if its sold new with the extras it might be like the ltd edition yoshi suzukis, a loud pipe that is fitted as 'standard' equipment at first wof.
Bit like trucks, roof mounted spotlights are legit if fitted at first COF when new but you get pinged if you fit the same lights later.
As said above by others, 99% of those who buy one like that in ad won't end up getting pinged unless being silly.
The pipe lets the engine breath better but probably makes little measureable power gain on dyno by itself alone.
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