I'm considering long tube headers and a X-pipe. I have the SLP axelbacks and like the quality etc... The SLP site claims an additional 30rwhp with their set-up. I don't know much about the MAC stuff.[/align][/align]Any opinions/thoughts on quality and power gain differences?[/align]

 

Stick with SLP long tubes...better configuration than Mac. Are you running Loudmouths or Powerflos?

 

I'm running the loudmouths. AWESOME sound!!!

 

I would go with the SLP...But it will CRAZY loud with the LM..u might want to change those once you put on the LT

 

+1 Crazy Loud, Might need to get a CattedX or H Pipe but that still will be too loud, Ticket Loud.

 

I was affraid it would be too loud. I am planning on getting the catted one. [/align][/align]We'll see how loud she screams after that!![/align]

 

I have the Kooks LTs, Kooks catted X and SLP LMs and its dam loud...very loud But I love it...although people will hear you from a 1/2 mile away

 

Yeah I figured it would be loud. I guess I don't think the LM are that loud by themselves. I also ride Harleys and I don't think they're loud either.

 

The common mis-conception here it that some people think the SLP LM are some kind of exhaust muffler, they are not. All they are is a Muffler Delete kit, that look good. for all intensive purposes they are straight pipes plain and simple.

I have heard of some people adding glass packsbefore the axle / after the X/H pipe and this tames the loud exhaust

 

i have the magnaflow magnapacks with the kooks lts and x pipe it sounds great very loud ive heard macs with the kooks set up like i have and it sounds good just not as loud its on brenspeeds website

go with slps