Seems like the majority of folks are going with the 4 x 9 x 18" case, 24" overall, with 2.5" pipes. Went to Corey's page... It sounds pretty loud!

Has anyone tried the 5 x 11 x 22" case, 28" overall with 3" pipes? It may fit under a taco, how about a runner?

I know of one member that went with the 5 x 11 x 22" case, 28" overall with 2.5" mandrel bent pipes and mentioned that it sounds not much louder than stock.

I'm thinking of following this setup but with 3" crush bent pipes. 2.5" overall diameter in 3" crush bent pipes.

Thoughts?

 

you should get 4x9 14" case with no tail pipe just a turn down!

= D

 

i have the 4x9 on my 4runner and fits fine if you see how big the stock muffler is there should be no problem with a 5x11

 

3.0 pipes you'll lose a bit of power and acceleration. not gain much sound with the 3.0 pipe either...read up on thermal exhaust basics before deciding on pipe size, I would NOT go any larger than 2.5 on a N/A motor, and even that...you might want to stay smaller with 2.25 inch.
The reason 3.0 pipes are no good, is because with that much of a larger pipe, you are changing your exhaust pressure, therefore altering the flow and tug of your exhaust pulses, the bigger pipe gives the exhaust room to expand, which allows it to cool, and become heavy and lsoe pressure, therefore it is no particular hurry to move out of your tailpipe, as it is no longer as heated or pressurized, and that in turn makes it harder for the next ehaust pulse to puch its way down into the exhaust piping, meaning your engine is having to do closer to 100% of the pushing to get the exhaust out, where as due to thermal dynamics, with a smaller pipe, the engine pushes only about 50% of the work required to make exhaust exit, and due to its heated pressurized state it creates vacuum of sorts and pulls the next exhaust pulse along with it.
That being said...make your own decisions of course, just trying to help you make an intelligent decision.

 

not to be rude but in his sig he has a supercharger so 2.5'' pipes overall will work fine

 

Thanks for the responses gang.

Ended up ordering the 5x11x22 Magnaflow with 2.5" inlet/outlet. I was looking for something very close to stock in sound, but nice straight through design.

If you do a google search for mandrel bent stainless steel or galvanized piping, you will find that a lot of companies will sell you elbows at various angles for relatively cheap. Just gotta figure out the measurements of the stock cat-back now. Obtaining the piping shouldn't be an issue.

Next comes the "headers to cat" part of the equation, (how many pipes and at what angles). Ideally wouldn't you want to increase the diameter of that as well to 2.5"?

 

Old thread, I know, but I'm contemplating the 22" magnaflow mentioned above and was wondering if anyone was running one. Don't want loud (def not 14" loud!) but noticable. I've heard the sound clips on the 18" and it sounds like a tad too much. Anybody got one?

 

Ive got a 27" 2.5" in and out round three chamber magnaflow. Reminds me of the old ford mufflers.

 

i had a 18' glasspack and it had a nice rumble to it, when i got on it. might be an option?man, I just watched all those videos off that link.. seriously, I really don't think you can make a bad choice.