Exhaust help

ticopowell · #1 Mon, January 31st, 2011, 08:00 PM

What a mechanic once told me when I had him install true duals is that there was no need to go larger than 3". and an xpipe or something similar will help balance out the back pressure(at least that is how I understand it), so they are a good thing. I had a magnaflow muffler with an internal xpipe and it worked and sounded really good. not too loud at idle nor low speeds, but it sounded good on the highway too

hampsterzone · #2 Mon, January 31st, 2011, 09:06 PM

Here is my 3 cents worth. 3" is the way to go as far as pipe diameter. X pipe sounds to be a good thing. I love my Dynomax Bullet Race Mufflers from Summit Racing. My pipe is stock until after my cats then they are 3"'s. I have 4" intercooler echo tips. Make sure to have the exhaust welded where it crosses the transmission unless you don't mind annoying leaks. They leave it like that so you can drop the exhaust to remove your transmission. But I figure who cares about cutting a little exhaust pipe to remove a transmission? At that point I am not worried about my exhaust being cut. I had mine welded and now there is no leaks and it sounds awesome. I get lots of compliments. Oh, and I had Edlebrock short headers installed also.

***88Racing*** · #3 Mon, February 7th, 2011, 12:22 PM

Clogged cats on a 2005 5.4?

I'd be getting it to a dealer to see if your injectors are ok....there's a tsb on them 120k miles or 11 years whichever comes first......also there's an emissions warranty good up to 80k miles or 8 years.....

jmwilso2 · #4 Tue, February 15th, 2011, 06:47 PM

I really like the dynatech headers and borla mufflers Ive got on mine. I basically bought the headers and a borla cat back and made a deal with the exhaust shop for them to trade me the single in dual out muffler it came with for a single in single out and then bought a second one. They used the catback parts to avoid doing a bunch of custom bending over the rear axle so all they had to do way run a two pipes back there with an x pipe between them and weld everything up. Sounds great. You can hear it when you get on it but its nice and quiet at cruise. My brother has a magnaflow cat back on his dodge and mine is quieter at cruise even though ive got real duals and headers. I'm glad I spent the extra money on the borlas. I was worried I was just paying for the name but I think they actually live up to their reputation.

Joe