First off, I posted this here on the 4.0 page instead of the general page because I want opinions of 4.0 trucks, not four bangers.

Anyway.....at first I liked the sound of the Hillbank Thunderbolt Exhuast. The muffler is high flow and everything looks great, good quality stuff. I have put on 3K and have been hoping it would "break in" alittle and make some more sound. So far it's OK.

I keep thinking back to my '97 with split dauls after the cats with no muffler. I loved it. Quiet when you had to be....loud and proud when you could be. I know I will loose some low end power, you don't need to tell me. I will gain upper rpm power though. It would not take much to replace my muffler with a splitter pipe for the daul outlets.

So, I guess my question is are there any 4.0 SOHC running around without any kind of muffler? How does it sound and should I try it while I still can get it apart? Thanks.

P.S. Like my new derby combine? 1st place baby! The general lives!

 

yea the magnaflow is really quiet that they use for the kit...personaly i like the melow sound...

 

I am running no muffler and I like it and dont. I love the sound. When you get on it you can hear it good. I did notice some loss in low rpms. Thats why I have decided to go with a 40 series here real soon. I have heard that the 40 series sound great and are LOUD and give you a little power.

I am the kind of guy that would rather have his truck get off the line fast rather then have it be fast later down the road.

 

cant you burn the valves by running no muffler?

 

I REALLY hope not!!!

 

With no back pressure yes....but dont hold me to a ranger....

My 1st car i had a gutted cat and a fart pipe and went through 3 motors (burning oil)

Rocky

 

So I should put a muffler on soon?

 

There are losts of trucks out there running with no muffler, just cats. Most of them have V-8's and sound good, better then a V-6.

Anyone else have a thought here?

 

i wasnt speaking for all cars.. cuz my dads vette has no cats or mufflers..
but i could have sworn that we had this disscussion before and i remember someone bringin up that it may burn the valves..

i could be wrong tho

 

*bangs head off desk* im not gunna repeat anything right now.

if u want a loud magnaflow u need a small case, and thats true for any muffler. i have no idea what the size is of the thunderbolt kit but i assume its fairly hefty.

 

thunderbolt is a beefy exhaust. Sounds really good to me. PEople hear it when i want em too haha. No V8 though.

Aaron

 

Enough on the exhaust...were did you do the combine derby at? Was it in Bloomington Wis?

 

combine derby is in my home town tonight. its a good time.

 

Amen to that!



This coming from A guy that owns a Rusted out hulk of a charger that I am hoping to make a General out of in the next ten years money willing. You got a full size pic of that combine?

~HJ

 

I run duals out the side on mine with no muffler, the loss of power was not really noticeable, I'm sure there was a little but it's got a lot of cats. It sounds good too me, it's mot too load at cruising speeds.It gets load around 4000 rpm.

 

The combine derby was in Osage, IA. This is the third year I have been in it. So far I have got 1st, 3rd, and a 1st this year.

This year no one cared about what happended to there machine or what place they finished. We were all giving it all our machines could dish out. My machine won....but it was in about the worst shape.

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I should have made the pics smaller...my bad.

 

No matter how hard you try...Your not going to get a 4.0, or any V6 for that matter to sound like a V8, you want loud, without damaging your motor, put a flowmaster 40 series on it.....Tone, and Noise without hurting your motor!


Yes you will lose power, and yes, running with practicaly no back pressure you have a HIGH chance of something coming undone!

 

Tone = small case Magnaflow
Noise = Fartmaster 40 series

please, for the love of everything green on this earth...search for back pressure and u will find why it is evil and u do not need it.

 

I've heard a magnablow on a ranger with the 4.0L SOHC and didnt really care for the way it sounded, on the ranger version there is no "tone" imo, now on a V6 stang it sounded pretty damn good. Now its funny how similar the Borla sounded to my 40 series, hmm..

 

The 4.0 in general isint the greatest sounding V-6 i have heard. But since i know mine is a V-6 and im not trying to make it sound like anything more, i like the way my small case Borla sounds on it.

 

I have the roush cat back with jba headers and it was too quiet for me too, so I got rid of my large cat after the two sides merge and it sounds like a mild V8! When cruising it is very quiet as when I am towing and then when I punch it people slow down to see whats passing them!!

 

You will find as many people for backpressure as well as many people against backpressure.



And Andy's 3.0 V6 sounds like a v8. It's very beefy. But i know it isn't a v8 under the hood. too bad for him.

 

I admit I hoped mine would be slightly louder once it broke in, but I still like the sound. Got some rumble, and it's not obnoxous. I like the fact I can still carry on a conversation in the cab.