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My First Dual Ex.

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Old 12-18-2007, 01:24 PM
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My First Dual Ex.

Ok, so I just orderer a pair of Flowmaster Delta Force, single chamber mufflers. As well as a Summit brand universal X-pipe kit. This will be connecting to my Hooker Comp shorties. I believe I have seen everything this site has to offer in information about duals on a third gen. I have also heard the many negative opinions of those who denounce the idea of its practicality. I never said this was practical, but it is however what I what to do. I believe I am somewhat knowledgeable on the mechanics of the process, and I have enlisted the help of a qualified exhaust shop to do the dirty work. I am posting this to see if anyone has any POSITIVE advise for me on this venture. Whether you've done it yourself or not, I would just like to know if there is anything else that would help me with this.



Thanks,
Max
Old 12-19-2007, 07:44 AM
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Re: My First Dual Ex.

I noticed your future mods are sportline springs....IF you plan on using any pipe larger than 2.5" OD for your duals and the sportlines together you can kiss the exhaust goodbye on the first good dip, pothole, speedbumb, etc you encounter. Everything I've seen says you can do what you're looking to do if you stay around the 2.5" OD. YES, there are plenty of 3" duals out there but look at their springs, where they live and the amount of ground clearance they consider acceptable. I know here in CT I want my exhaust tucked up as high as possible.
Only other positive advice I can give is be concious (spelling?) of the future need to say remove a section of the exhaust for whatever reason (cat replacement, rear suspension upgrades, SFC's, etc. You don't want to be cutting / welding everytime you need to remove a portion.
Old 12-19-2007, 10:21 AM
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Re: My First Dual Ex.

Read the topic and thought something completely different, how misleading and disappointing!

Hope you get your duals to run great, all the talk about going duals and problems with it talked me out of it. Clearances and routing around the rear axle seem to be snag points. But you mentioned you read the stuff on here and I did too so I guess it's just semantics now hehe!
Old 12-19-2007, 02:15 PM
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Re: My First Dual Ex.

AC,

I changed my mind about the sportline springs awhile back, just havenet edited it from my sig. My pipe is however 2.50 ID. And as you mentioned about possible removal of the pipes later on, that has been taken into accord as well. Here in IL its not too bad, but I will be extracting as much ground clearance as possible from this setup. I came this far, may as well follow through and do it right.

Fyrstorm,

Sorry to have misled you, but if its pics you after, then I may be able to help you out. Everything is supposed to arrive Friday, and if I can convince my muffler guy to hook me up over the weekend, then I may have pics by Sunday. That is of course assuming everything goes smoothly and on schedule.

Many thanks,
Max
Old 12-19-2007, 02:47 PM
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Re: My First Dual Ex.

id say good choice. its a choice ive made and havent regretted. i went with headman LT's, headman extensions, into summits universal 3" xpipe into dual 3" force mufflers. its going to be interesting with your build and def post pics. i did a few months back when i installed mine. of course im running sportlines so mine was more of a nucense but it really wasnt hard at all. i went ahead and knotched the stock subframes and ran the extensions right through them and along the floor pain into the xpipe into the mufflers. cost was cheaper than a stock replacement as well. i would only knotch the stock subframes if u have installed aftermarket subframes as i did before.

i did this all on my back when the car was on jackstands so it was a pain after the markup was done and i cut and welded the stock subframes things went together within an hour or so. i love it now and the xpipe really made a huge diff in sound and power from 2500 on up.

if u want sum pics for an idea i believe i posted some either on this section or in suspension since i did the sportlines as well.
Old 12-19-2007, 02:49 PM
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Re: My First Dual Ex.

I just got 3 inch duals on mine last weekend (Been whoring them up and down the boards actually since Im so excited about 'em, you'll find clips and pictures of them all over the place right now. ) and the ground clearance isn't great... but Georgia roads are pretty nice, and I've got some NICE Koni yellows on the car and IROC springs so it's got a good, stock stance to it. Lowering sprigns will never work with these.

And with 3 inch pipe you're only losing another half inch over 2.5 inch pipe... It's not a huge difference, your ground clearance will suck either way, but most people (me included) dont really need 3 inch pipe so stay with 2.5 if it doesn't matter that much. But dont think just becuase you're using 2.5 inch pipe that you're going to be able to go offroad the car and play speed bump derby.

But I dont regret it at all yet. Sounds so good! I think a really important key is to make sure you've got nice stiff struts and shocks on your car.


See the frame rail, and the bolts/clamps between the exhaust and the long tube collectors are barely visible there too.

When the system comes back off my for my impending engine swap it's all gonna be painted with some black high temp paint, should look slick. I've got clips posted everywhere so feel free to look for them or pm me. The x-pipe makes it sound really interesting.

Last edited by InfernalVortex; 12-19-2007 at 02:58 PM.
Old 12-19-2007, 04:39 PM
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Re: My First Dual Ex.

Wow, thanks for the replies. I was just under my car a few min ago and notices some hard lines running along the trans tunnel on the passenger side. Should I fabricate some sort of heat shield for these? Or maybe some of that clamp on shielding? The kind that clamps onto the exhaust pipe.

To address some comments...
Yes, I am fully aware of the fact that 2.50 pipe isnt going to make it any more of an off roader than it was to begin with. I dont think I will be notching my subframes any time soon, even though I will be adding sub frame connectors in the near future. Oh, and my shocks and struts are Billstien Super Duty. Springs are the stock pieces.
Old 12-19-2007, 10:14 PM
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Re: My First Dual Ex.

yea i would fab up sum heat shields. i had the lines on the driver side so i couldnt knotch the stock subframe bc the rear brakelines/fuel lines ran all next to eachother all the way to the rear. i left 3/4" of the stock subframe just enough to move the lines away alil and welded a peice of 1/16" mild steel sheet to the floor and subframe. painted it and whalla!!! when i put the new motor tho i will be bending my own hard line somewhere else. i wouldnt knotch stock subframes if u dont have sum aftermarkets installed thats not a good idea. but to do it all at once and do it right will save u $$ and time and alot of headaches. if u have any plans of lowering the car then infernalvortex's way will never work. he has it run like my old way which had little ground clearance with stock springs. im also using box force mufflers which are my lowest point but i will be installing a 4 point cage so when i do the new motor i will be cuting into the floor yet again and tuck them up real nice. i used boxed mufflers for noise and i dont really like the glasspack tone over a nice 3" toned muffler.

its really up to u and what u want to do or like. but do it right the first time and so that its ready for future upgrades and changes, i would have to hate to change it down the road for a simple lowering change.
Old 12-19-2007, 10:21 PM
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Re: My First Dual Ex.

https://www.thirdgen.org/forums/exha...8460-true.html

there are some pics mine are posted as well.
Old 12-20-2007, 07:34 AM
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Re: My First Dual Ex.

Sorry to have misled you
hehe it was more of a tongue in cheek kind of comment, like you were with two ex girlfriends at the same time. Just trying to have some fun with you hehe!
Old 12-20-2007, 12:29 PM
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Re: My First Dual Ex.

Fyrstorm,

I hear what ya sayin man. I do appreciate all the feedback everyone has offered. Thanks guys.


Max
Old 12-20-2007, 07:34 PM
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Re: My First Dual Ex.

I just wanted to post and say that all the parts I ordered from Summit arrived today. Two days from Ohio to Illinois, not too bad. Anyway, just wanted to say that the fit and finish of the Summit Universal X-Pipe Kit is top notch. All bends are well formed, and the crossover is precision welded. The actual area inside the crossover were the pipes merge is quite large, the pictures in the magazine just do not do it justice. So, for anyone considering this part, you cant go wrong.


Max
Old 12-22-2007, 10:35 AM
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Re: My First Dual Ex.

yup thats what i said! enjoy
Old 12-22-2007, 04:17 PM
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Re: My First Dual Ex.


Got the duals on yesterday evening, oh yeah. This thing sounds amazing, even with just the 305 TBI in it. Full 2.50 inch pipe, Summit Xpipe crossover, Flowmaster delta force single chambers, dumped in front of the axle. Night and day difference. The tone is so much smoother than the single pipe setup I had before. It is however clear that I dont have the engine to take advantage of the increased flow capacity, not yet anyway. I'll post some pics and vids as soon as I get my camera sorted out (cheap Kodak POS). I didn't end up with as much ground clearance as I would have liked, but I haven't scraped it yet either. I did notice that the duals made it a bit higher pitched than is was before, but it still sounds great. The T5 really sets it off, heel-toe downshifts sound wicked.

Thanks alot for all the help and support,
Max
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