_zebra

iTrader: (5)

32 Valve Cylinder Heads LSX Blocks 32VLSX Rocker Arms Pushrods
a little pricey, though

2doorfury

iTrader: (12)

i was thinking 3'' exhaust pipe. thats about as big as a muffler shop around my arear carrys. but it should be plenty..i got a mods list to get done. but for a cam, headers, and 100 shot..would 3'' be too much?

TimDave217

iTrader: (4)

There's a sticky over that can help you in this situation espicially with the size of piping you want to use. But I have a custom X-pipe on mine with a magnaflow muffler that also has a x-pipe design in it and it sounds amazingggg. but not anymore since I'm going to be F/I in the future its for sallleeee!!!! lol

mhotrodscooter

iTrader: (13)

I run 3" duals & dual Manual cutouts with a magnaflow muffler with X-pipe built in. I hate the sound & drone.

BlackGMC

iTrader: (31)

I went with a 3.0 to 3.5 ypipe and a full 3.5 catback with a magnaflow straight through muffler. I noticed a decent gain with that change. Btw 3.5 single has more volume than a dual 2.5 setup plus it is cheaper.

budhayes3

iTrader: (19)

If you're talking dual 3" on a cam only 5.3, I feel that 3" would be overkill, just my opinion. Guys with mild 5.3's have reported a loss down low just by installing Pacesetters with the 3" collectors and y-pipe, into a 3" single back. My guess is that the dual 3" in the y-pipe has an effect on the exhaust velocity and evacuation from the cylinders.

A single 3" cat-back would be just right for a mild 5.3 IMO, but may not be optimal if you're planning more cubes in your future. FWIW, when I installed my StainlessWorks LT's, a didn't notice any loss down low, but my headers and y-pipe have smaller 2.5" collectors and y-pipe, into a 3" cat-back (1 3/4" primaries). Now, if I ever get the dough to put my LQ9 together, I feel that the smaller collectors will definitely hold me back...maybe not so much the y-pipe, but definitely the collectors. Optimally, for a N/A 6.0, I like Corey's set-up, with a 3.5" single cat-back. If boosted, or with a nasty cam and headwork, 4" could be justified and work well. IIRC, Roger (AKlowriderZ71) is currently running a 4" cat-back with his 5.3, but he's boosted and cammed which has a definite affect on the equation

swift700

iTrader: (3)

I'm going to switch to a system like Roger's as well. I think the single sytem sounds cleanest and is such a sleeper setup. The 4" moves tons of air. I don't like the sound of true duals and really think the two pipes straight out the back look awful. One out each side isn't so bad but why bother when a single system is all that you need?

oldred95

I've heard good things about the flowmaster scavenger y and I actually have one but I have yet to install it. Going with a single 4 inch on the 95 with a MBRP muffler. We'll see.