Ok I now have silverline's 4" turbo back duals. I just have the muffler. It sounds good but I want the turbo sound out the pipe and the down spool. I had MBRP 5" straight pipe before and it had great turbo sound; just a little too loud for me. My question is, if I straight pipe this exhaust being 4" duals, will I get any turbo sound out the back? And will straight piping my exhaust be very loud? I don't want the loud drone which is why I got rid of the 5".

 

I hate to tell you this but you should have kept the 5" and put a 51" Donladson muffler on there. That's what I did to mine and the drone is gone but I can still here my turbo even at idle. A 4" straight pipe is going to be raspy compared to the throaty of the 5". You could try it though as it won't cost you anything to just test it.

 

I straight piped my 06 and the drone was unbearable....the Mega even has a resonator which I left on....

No load not too bad, but hauling a trailer was horrible....it even rattled the mirrors under load....Muffler back on now.....(I have no cat as well, this might make a difference).

 

I just removed everything from the downpipe to the tailpipe then added back in with 4" pipe to a 4" straight through muffler for semi and attached the tailpipe piece to that. The sound is hearable but fairly quiet, in other words it sounds like a semi truck.

 

ur realy not going to be able to hear the turbo , 4 inch is so rashby like already stated wat i found sounded best on my 06 i had was 5 inch strait with 7 inch tip 90ing straight out the side not to loud but very deep and could hear the turbo wine

oh i miss that sound

 

My old truck I took the muffler and resignator out and replaced it with a piece of 6" exhaust pipe reduced down on both ends to fit and sewed it up it sounded great!!!!!! plenty of noise going up and coming down!

probaably going to do it to the '07 sooooooooooon!

 

I took my stock exause off the first day i had it, picked up the supplies on the way from the dealer home and changed it out when i got home.