Muffler swap...should I do it?

[clubhead]

Originally Posted by Adam

.....but not too loud. What do you think? Also, did you say you got 238whp with just the cats and headers?

I hardly notice a difference in the decibels with the Dansk headers & cats My mechanic did tell me there was a slight increase in sound though.

I'm looking through my dyno report now. I may've made a slight mistake in my report I got my baseline dyno with the headers printed in bhp but the subsequent one with the addon cats in PS! I just need to go back to the dyno shop and have them re-print a bhp one for me.

Anyway, the max PS with the cats/headers is 239.6ps.

PS increase only happens from about 4,800rpm. There was torque loss < 4,800rpm. But both PS and torque increased after 4,800rpm.

I know this contradicts my initial report claiming there was torque/bhp increase throughout the rpm range..... I'm still trying to figure out what happened. I will amend my original post and attached a graph.