ok so heres the deal, my dad has a 15:1 compression 85mm ls vtec with itbs. he made 260whp on his last tune, but that was done one a small tube tri-y header. he has upgraded to the big tube tri-y header since then. the tuner who tuned us really doesnt do all motor cars, just boosted. we are trying to see if adding a megaphone at the end of the header would help it out. and also any advice on a all motor tuner not to far from virginia
? we were tuned on neptune then, now it will be on hondata s300.please any help on this would be greatly appreciated

 

as far as the megaphone i dont know

look into innovative motorworks in carlisle pa.

ps - your dad is awesome.

 

megaphones do make power and make the motor sound really good
look into burns stainless they make merge collectors megaphones and header materials
just a note tho if you do decide to put the megaphone on it needs to be attached to the merge collector not at the end of the header
i have a burns megaphone on my bisi header peaked power and sounds sweet!!!
btw congrads on the 260 goo B series power

 

x2

john tuned my allmotor car an will be tuning my new motor. john would do a good job if willing to drive there

and burns merg collectors 4to1 are not cheap i bought one it was around 430 bucks there are a work of art