Straight piped hemi rev and take off.

[rphilbrick819]

thumbs up to the JO, I live in OP, keep a look out for my blacked out '01 off-road edition

[AnuKnocky]

I used to drive my Ram like that and the engine blew. So I put another 4.7 in it and I am waiting for it to die. My 91 Ford runs better than my 02 Dodge. Your truck sounds good though, sorry I am venting.

[VetteKiller2002]

whew , guess he told you .. haha

[mikemclawhon]

This engine is just fine sir, 120k and not so much as a hiccup.

[MrMicas101]

ahah, people are so dumb i swear, straight piping trucks, this engine wont last long.

[911SHIZBO]

@MrMicas101 get lost...

[zeppelin67637]

@MrMicas101 Explain

[1fastscottsdale]

@MrMicas101 oh yeah its going to throw a rod through the block right? Or wait is it going to crack a head? Bend a valve? Burn a valve? As a matter of fact straight piping a truck gas and especially diesel is by far one of the best things you can do for the engines longevity. If you knew anything about back pressure and all the emissions BS plus beer keg sized mufflers and resonators that create backpressure you wouldnt make such an ignorant post.

[mikemclawhon]

@1fastscottsdale Well said sir.



[MrMicas101]

@1fastscottsdale i would suggest you stop talking, straight piping any car or truck is not good. your motors supposed to stay at a certain tempature, straight piping will let heat out the engine and valves will cool down and heat up and so on, ive seen two cars in my shop with cracked valves because of it. and your engine needs the right fuel to air ratio, straight piping will cause it to breathe wich is a good thing but your gonna be running way to lean.your are a complete dumbass.

[lawnmowerTim]

@MrMicas101 its called maf sensor. Cars will adjust themselves automatically to the changes

[1fastscottsdale]

@MrMicas101 really, guess being ford and ase certified makes me dumb. Wonder why my truck with 88k thats been straight piped since 12k hasnt had any issues... and i beat the hell out of it.

Engine temp is controlled via thermostat. The engine is not going to lose heat due to less restriction in the exhaust. UNLESS you are running open headers zoomie style, allowing cold air rushing in on a hot valve... stoichiometric meaning air fuel ratio is controlled by PCM via fuel trim values

[1fastscottsdale]

@MrMicas101 Fuel trim values sir, are calculated upon engine load, open or closed loop status, evap system performance and the only thing to cause the engine to run lean would be cracked intake gaskets or vacuum leak and short term fuel trims will be maxxed out, cracked exhaust manifolds allowing more air into the upstream 02 sensor. You better go read a book on how modern fuel injection systems work before i make you look worse.

[badassouthernboy]

@MrMicas101 its not so much the heat issue its a back pressure issue by running a pipe thats too big you loose all back pressure thus burning up valves HOWEVER with the stock exhaust manifolds and catalytic converters theyre is PLENTY of back pressure on the motor fuel injection adjusts to the changes so heat isnt a consern at all my ol gas burner was straight pipe no problems it actually increased power and mpg and all 3 of my diesels are too they dont have any issue at all...

[borntoberebel12]

@YZFMxMan22 the smaller the pipe you have the more rap and popping you have. the bigger the pipe the more tone and deep throaty sound you have

[pbmaniac51]

yes. friend has a 5.7 hemi straights and 6" tips. Loud as hell. No popping until around 3500 rpms.

[SupremeThunda23]

@YZFMxMan22 well i know the smaller the pipe the more its cracks or Rapps, i just threw some headers and took the muffler off and its cracks plenty for me

[mikemclawhon]

@YZFMxMan22 I have no idea if thats true but i just put true duels on this truck str8 and it raps like a sombitch.

[Daveh1219]

i was wondering what size pipe you used as well as if it is true duals or just a y-pipe after the cat. i have a 2003 dodge ram 2500 hemi 4x4 that i was planning on doing straights to just trying to decide if the y-pipe after the cat with no muffler would sound good. i want it to be loud but i have to keep the cat alone because i have emissions.

[mikemclawhon]

@Daveh1219 Y pipe after the cats, and 2.5inch pipe. And I dont think I would want it any louder. Especially when pulling a lode, cant hardly even talk with the window up.

[Daveh1219]

@mikemclawhon ok thank you for the quick reply. i plan on taking the truck in soon to have the exhaust redone. i was hoping it was just a y pipe. thank you once again for the advice, oh and i dont know about where you live but the cops arent too picky about the loudness of a truck, but would i get in trouble for it being too loud? like is it too loud?

[mikemclawhon]

@Daveh1219 Cops have never messed with me but neighbors always give me the stink eye...

[Daveh1219]

@mikemclawhon Alright sounds good. We live in the country so it shouldnt be too bad to deal with neighbors. Have you noticed any difference in performance of the truck since doing the y pipe ?

[mikemclawhon]

@Daveh1219 I got the pipes exact same time i got and cai and could say if its the exhaust or the intake

[Daveh1219]

@mikemclawhon have you had any problems with the truck since doing the exhaust? I have read on different sites that it may not be good to not have a muffler and just do a y pipe, so i figure its best to ask someone with experience

[mikemclawhon]

I think the echo tips would definitly give you a little different tone. I had them on my durango (4.7) and it made it sound a little deeper. Advice to you, get stainless not chrome.

[aaminjoshi91]

Damn you knew exactly where to stop! nice truck and i was thinkin bout gettn some echo tips, are they worth it? i got a 4.7 dodge, with a flowmaster super 44 series on. Would a echo tip help enough to notice?

[mikemclawhon]

I got these through my local muffler shop....look on ebay, i've seen them for around $60.... Tip, get stainless not chrome

[furywarrior08]

where did u get the echo tips i have looked everywhere online and i cant find them

[Renpopo]

still got the cat's on or is it from the cats back?

[mikemclawhon]

Just a simple cat back

[mikemclawhon]

I was planning on spinning around but a car was coming and didnt want my camera ran over. So I came at them head on in reverse.

[Godlyguitarman]

I am sorry but that was funny. It was a good take off but the reverse was just funny

[mikemclawhon]

Thumbs up!