About to get tuned - replace plugs or no?

[dx3]

Guys,

About to get my PCIII installed on my 02 and have it dyno'd.

Bike is an 02 with 9k miles and a full Yosh exhaust as the only performance mod. Should I replace plugs before the tune? What about filter? Anything else? If so, which plugs/filter?

I have not done the small airbox mod or pair valve mod. Should I do these?

Any input appreciated,
Jonny

 

[sixpack577]

New plugs and a clean air filter wouldn't hurt. Stock NGK plugs and there's alot of opinions on air filters, K&N, BMC, and Pipercross are the most common, all are reusable and for that alone they are worth having.
Pair mod can be done easily, and it just prevents air from being pumped into the exhaust for emmisions. The mod prevents popping from the exhaust on deceleration.
The small airbox mod is up to you, but before the dyno is deffinately the time if you're going to do it.

 

[BA BUSA]

Do it all...NGK plugs, BMC or Pipercross air filter...K+N is reusable, but does not flow as well as the stock air filter. Also do the "small air box mod" and remove the pair valve.
Posted via Mobile Device