hey guys im looking into a new exhaust setup for my truck and was wondering whats the best setup for power, sound, and no mpg loss maybe a little gain if possible? i was thinking straight pipes but i heard you lose power and mpg and the check engine light will come on?

 

2.25" true duals full mandrel bent, X piped, and straight through mufflers.

You wont lose power without mufflers, nearly the same as a straight through muffler which performs best, and no engine light because the last part of the exhaust system after the manifolds that is monitored by the PCM are the catalytic converters.

 

Plus hi-flow cats!

 

Greetings!

The scoop on straight pipes: ==>https://www.f150online.com/forums/1269826-post2.html


MGD v4.0

 

thanks guys thats what my local muffler shop said too i just didnt want to lose any torque or horsepower from stright pipes because of velocity? i would like to gain would magnaflow gain me any?

 

agreed.

 

what about the link that MGDfan posted? is that not true?

 

Ok i have been doing alot of research and there is a few i have in mind... magnaflow 14in muffler shortest i could find? or maybe a cherry bomb extreme? or the straight pipe? i just dont want to lose low end power or mpg!

 

11" oval's are the shortest, but 14"x4" round bodies (Magnapacks) are louder, and IMO sound better. If you don't want to gain torque, a 3" SISO with a Maggie Y-pipe would be best.

What the hell happened to my man AV?!

 

ok thanks man!

 

I saw that he was suspended this morning and was wondering what was going on.

 

Since Mike Troyer is the guy who posted everything in that link, it is accuratly researched information, however I will argue the straight pipe thing though. Magnaflow's mufflers, are straight pipe. They are straight through designs with preforated tubes to allow volume waves, not exhaust gases, to absorb into the muffler. So true dual straights would perform exactly as straight through muffler duals. All that a Magnaflow SI/DO kit is, is a 3" pipe added to the Y pipe to a Y pipe with packing wrapped around it in a steel casing making it into a muffler, with tailpipes.

 

ok thanks man

 

Hello.

Sorry Darren - that's not correct - Maggie's do show a slight pressure delta versus straight pipe - and it's entirely due to those perforations. Since exhaust gas is, well, just gas, and those perforations exist - that where the gas will go. Simple physics - it's called entropy.

Phil (OCP) isn't the only one who owns a Magehelic - I have one too. (And, BTW, that's how I know that healthy stock cats only drop 2-2.5 psi, which is a mere pittance, in the overall scheme of things, so removing them for perceived restriction is wrong-minded, and as MT has already stated, takes valuable heat out of the exhaust equation, to the detriment of scavenging.

Believe this or not - makes no difference - the planet will still revolve around the Sun, unheeding and unmindful of yer ignorance, lol.

You don't need to believe me, but you should believe Mike - he has had more time, resources & experience, and industry involvement/contacts, perserverance, R&D, and raw talent, than anyone else in the F150 perf bidness you'd care to name.

Call him & yack - the same courtesy I extended to Mr. P I will gladly also extend to you; I'll pay yer long-distance charges if you are not satisfied he's given you some additional education.

Consider it - there are still gaps in yer knowledge. Not a bash, just an observation and something I'm more than willing to do something about.

I do not offer such things lightly nor on a whim - I do it because I CARE.

To the OP - if you also wanted to corroborate/confirm/dispute the above, I'd also suggest you call TP. On yer dime, though. But well worth the quarters you feed the phone - that I promise you!


Playing Ostrich does you all a disservice ....

***EDIT*** OMG! I just saw AV is suspended as well - what the crap did he do now???? Darren! Mr. P! What'd you make the youngin' DO? lol


MGD v4.1

 

What? I dont get a more enthusiastic "Hello! How are you!?" I always grin when I read you starting off with that in a thread.

Anyways, thanks for the information. I will not challenge you or Mike about it. It makes sense to be a bit. I do not own such a device as a magehelic so I can't claim any power gains on the straight through vs straight pipe issue. I just find it questionable as both systems are near exact, the preforation part makes sense. Thanks.

btw, v4.1already?