ridgetd

I currently have a 14 inch oval Magnaflow dumped before the axle with lt's and no cats and sounds good just want something new.I just picked up a Dynatech split flow in 4 inch size.I have read they are pretty much like the Borla xr-1.Figured I will go to 4 inch pipe at the y-pipe connection and use a 4 inch turndown.

Question is will this be louder than my current set up,and how does 4 inch compare to running dual 3" or dual 2.5" pipe.

ak2007r6

iTrader: (1)

4" seems pretty aggressive for your setup. Do you have plans of going FI?

ridgetd

4 inch is overkill,I am trying more for sound than anything else.Theres not much pipe in between my y-pipe and muffler now so it will basically only be 4" at the muffler.Truck is a rcsb.Just curious if it will be louder.

oakley6575

iTrader: (5)

Yes I think it will be louder. I'm running 3" from the headers to a dual inlet magnaflow with a single 4" outlet dumped over the axle. It's very throaty out of the 4" pipe. No cats by the way. It sounds good but too loud for my liking.

fix-it man

iTrader: (1)

Don't wanna jack your thread, but do you guys think 3.5" would be too much for a stock 5.3?

ak2007r6

iTrader: (1)

Bone stock motor.. yes that's a little bit of overkill.

fix-it man

iTrader: (1)

I understand velocity a little bit, but what exactly will I gain and lose with 3.5" pipe, I do like the sound it could provide with a big tip though

ak2007r6

iTrader: (1)

If all you are interested in is sound just dump it before the rear axle and don't run a muffler

Mikey 97Z M6

iTrader: (35)

I like the sound of the Dynatech mufflers.

Here's a sound clip of a 4" Dynatech on my Z28.

Custom DIY Fabbed 4" Exhaust w/ Dynatech Muffler - 242/250 Cam - YouTube

Mike

black4.8

iTrader: (1)

i think it will sound better w/ dual 2.5 split flows. 4" is way overkill. love my splitflows btw. i've tried about every muffler and these are my favorite.