wah

is bigger always better? i am looking at exhaust systems and i wanted some suggestions 4 inch or 5 inch, duals or single, cat back or turbo back and also who should i go with mbrp magnaflow or silverline or any others that i failed to list. i am only doing and in this order, exhaust afe stage 2 and then a programmer (havent chosen yet) to my truck performance wise so what system should i go with any help would be great thanks guys.

cquestad

Just swap out the muffler and kill the kitty till you get well above 500 hp or you are wasting your money...

soulezoo

Looks like he already has the 5" on the way...

t-boe

If you aren't going over 550hp 4 inch is fine. Your stock exhaust is 4 inch so either replace the muffler or get a delete pipe and save some $$$. If your going over 550hp (or plan on it in the future) you should go with 5 inch. The Magnaflow 5 inch isn't a true 5 inch. It necks down to 4 inch when it goes through the muffler. Other than that the brand you go with is just preference as far as looks and sound. Most, if not all, brands are mandrel bent and pretty free flowing.

soulezoo

For the record... no, bigger is not always better. For low end performance, you lose a little torque with big exhaust. That is why you wait until you are over a certain HP. MBRP even makes the "torque tube" for 4" exhaust to address this issue... I would have true 4" throughout myself except the HT3B has a 5" outlet...

soulezoo

FWIW-- 5" MBRP is true 5" throughout and sounds good, no drone and not too loud. Silverline is also a quality product. I like turbo back for egt reasons-- you may have a concern about removing the kitty where you live and removing federally mandated emissions stuff yada, yada, yada...

t-boe

I think it's Magnaflow's duals that neck down to 4 inch in the muffler.

WUnderwood

true, there is no true 5" dual exhaust

my 5" flo pro is 1 5" into the muffler, then 2 4" exhaust pipes

morkable

I run alot over 500 hp, on 4 " exhaust,,,, remember that it is only 4" coming out of the turbo

Kevin

wah

thanks for all the advice im gonna head down to the exhaust shop and figure out what i need thanks again