BigWhite

Flowmaster Super 10. Put a si/do on my 98 and love it. Loud enough to know your coming and sound aggressive but not annoying

the_rynomyte

You got a video or sound clip?

greenheadkiller98

my freinds dad put a super 10 on his 08 5.4 with cats and you can barely hear it. Its about the same as a stock pipe on that truck just a dofferent tone. Maybe its just with that truck though

chavita28

See I have had a flow master 40 si/so and loved it at first but realized it was so quiet. Then I hacked that off and did a side ext straight pipe infront if my right tire with all 4 cats and it was louder but to cracky and now I cut rear cats off and took it to a shop had them do an x pipe with true duals all they way out the back and I love it. At every rpm it's got a deep rumble and it's loud when your on it but not bad when your not and its by far the best I have ever had.







Just a few pics I snapped out of excitement

pfoley12

So are your true duals just straight pipes or 2 mufflers?

MPETE

iTrader: (1)

the deepest sounding muffler I have ever experienced is a spintech prostreet model.

pflan

So, let's say I love a nice, loud truck and I do NOT live somewhere that checks emissions. BUT, I absolutely HATE a poppy sounding truck. I don't mind some popping when I left off the gas, but I don't like that gurgly, choppy sound when I'm accelerating. I want it to sound smooth, but loud.

Should I straight pipe the truck and keep all four cats? OR should I straight pipe the truck and remove the two rear cats?

Also, does removing the rear cats cause a check engine light? (1999 XLT 4.6L)

mpbball2332

I got straight pipe and rear cats remove and I love it. It rumbles haha. Mine pops when the engine is cold but once it warms up it don't pop. Also I didn't get a code I heard its a hit or miss sorta thing

pflan

Do you get a nice, smooth (yet loud) sound while accelerating?

What size pipe did you use? 2.5" all the way back?

mpbball2332

I'd say its pretty smooth. And yea 2.5 all the way and 4 or 4.5 inch tips I don't remember might even be five lol