An exhaust question, hope ya'll won't mind!

945 Views 13 Replies 7 Participants Last post by jlm89, Jun 1, 2007

jlm89

Discussion Starter · May 31, 2007

I've got a 2000 ecsb with a magnaflow dual exit exhaust system on it right now, 5.3l vortech v8...I want to run shorty headers, if i run headers will i need to go true duals?
another question, i need a ballpark estimate on the cost ya'll would expect me to pay to have the headers installed, i can have the exhaust pipes and mufflers put on at my stepdads shop, but i'm not sure about the headers, the only headers i've worked with are the hookers on my dads 69 chevelle, the 454 engine on that chevelle was already taken out before we put the headers on, and it was a major pain in the ass.

summary

-Price Estimate (OR can it be done with the proper tools at home) on Header Installation (Gibson Shortys)
-Will true duals be necessary?
-Can I use the existing pipes for one side exit and attatch the other half of the pipes to the new muffler for the opposite side exit (if true duals are needed)
-A preference question, dual super 40's, 44's, classic 40's (flowmaster)?

thanks in advance ya'll

sorry i know this is the offroad forum, but i'm sure some of ya'll have headers and/or true duals, hope ya'll can help me :bowtie:

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silver98Z71

· #2 · May 31, 2007

Dont run shortys. They are a waste of money. I had them (actually still have one on) on my truck for about two years, and they weren't worth the money. I took (in the process right now) of putting the manifolds back on because the headers (steel) warped horribly when the truck was running; compared to the cast iron manifolds.

But if you have your heart set on running shortys (like I was) true duals are not nescessary. The shortys only replace the cast iron manifolds with tubluar steel pieces. When we had the new motor put in my truck the stealership said they would put the shortys on for $350. I have two Origional Flowmaster 40 Series mufflers on my truck. It is quiet enough at idle that you can hear it but it isn't ungawdy quiet, it shakes the truck though. It sounds good either way.

I think this helps.

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chevytaHOE5674

· #3 · May 31, 2007

Shorties aren't much different than NBS manifolds. Also true duals aren't needed in fact you will make more power with a good single system. Also for power flowmasters aren't a good choice. Your magnaflow will make more power than flowmaster.

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jlm89

Discussion Starter · #4 · May 31, 2007

alright thanks, that helps, if i felt compelled to run true duals, what would be necessary, i liked the idea of shortys, but i've heard from 4 people now that they are a waste for the time and money, sorry for the n00b questions, i've only been into modifying my truck for a year now, and i'm 6 days under 18 lol, thanks again

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jlm89

Discussion Starter · #5 · May 31, 2007

mhmm also, my magnaflow system was put on at the conversion shop when the original owner bought the truck, it is barely loud compared to most dual exhaust at low speeds, at highway speeds theres barely any resonance, i'm looking for a deeper/stronger sound, and some kind of idle sound as well, i thought maybe glass packs

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Daniel

· #6 · May 31, 2007

bullets

get some longtubes and your sound will change

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silver98Z71

· #7 · May 31, 2007

v6offroad said:
get some longtubes and your sound will change

Then he would have to change his down pipe(s) and crossover pipe. Also he would have to relocate his cats, IIRC.

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jlm89

Discussion Starter · #8 · May 31, 2007

what brand long tubes? and is it possible to self install?

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Daniel

· #9 · May 31, 2007

silver98Z71 said:
Then he would have to change his down pipe(s) and crossover pipe. Also he would have to relocate his cats, IIRC.

yeah but it would be worth the extra power and sound

and you prolly couldnt self install

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T-Bubba

· #10 · Jun 1, 2007

chevytaHOE5674 said:
Shorties aren't much different than NBS manifolds. Also true duals aren't needed in fact you will make more power with a good single system. Also for power flowmasters aren't a good choice. Your magnaflow will make more power than flowmaster.

If you go with headers I'd go ahead and put high flow cats and bullets or straits! I went from a dual in dual out raven two chamber muffler to dual single in single out flowmaster 40s, felt like i lost power and deffinatly lost about 1mpg, dont even sound like i thought it would. I will deffinatly be going with bullets or straits soon

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jlm89

Discussion Starter · #11 · Jun 1, 2007

thanks for the advice ya'll, when bday rolls around next wed i'll let ya'll know what i come out with lol

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xlcooplx

· #12 · Jun 1, 2007

headers are easy to install. just time consuming. dont waste cash on shorties. with longtubes, you'll have to have your exhaust completely redone. you can get a set of LTs and an off-road y-pipe that will mate to an aftermarket catback. you can then get a catback and install the entire exhaust yourself (easily in one day; without a lift).

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joezgarage

· #13 · Jun 1, 2007

jlm89 said:
i thought maybe glass packs

Oh damn! The first thought out of my mind is that this guy must be from Texas. And there it was, location: Fort Worth. I knew it.

If you have a 76 Chevy and buy parts from Western Auto, glasspacks are fine. But for those of us living in 2007, for gods sake buy something better.

Hate to bust your chops, I'm only 15 minutes down the road.

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jlm89

Discussion Starter · #14 · Jun 1, 2007

lol nice

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