LT1-LT4 Modifications 1993-97 Gen II Small Block V8

My exhaust options?

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Old Oct 13, 2008 | 01:59 PM
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Default My exhaust options?

Damn its crowded under there. I'm not sure what I want to run for exhaust.
Initially I was going to get a 3" to 4" ypipe as I have a 4" bullet laying around.

Not sure if I should go that route, or sacrifice ground clearance, not sure how much clearance I will lose though honestly. Well lets post some pictures.






So yeah, I'm can't make up my mind. I thought about just dumping a bullet off of each collector, but well there isn't enough space to do that between the collector and the subframe connector on the driver side. So I'm contemplating Hpiping it after the collectors, then losing some ground clearance to mount two bullets right behind the diamond part of the SFC's, you know making the hangers there like we see on a lot of dual setups. I wonder how much ground clearance I will lose though....... or if I should stick with the single 4" route dumped, but I'm not sure I have the torque arm mount that will work with that either, although I did see if the 4" bullet fits between the mount and the floor of the car and it does.
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Old Oct 13, 2008 | 02:58 PM
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i went with a single 3 pretty much inthe stock location. ill try to find a better pic but i just took a U. cut it in half turned it and welded it on after the cat. a 4" is pointless unless the Y pipe merges into a 4" pipe. unless you modify the Y pipe for it. then a 4" wouldnt be half bad
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Old Oct 13, 2008 | 03:47 PM
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I had a 3" single originally. I'm looking for 500-550rwhp when on the bottle though, so I either want duals or the single 4". I know a single 3" already fits with no issues.
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Old Oct 13, 2008 | 04:01 PM
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Just do duals. Many people have done them and i bet you will have better clearence than with a 4 inch pipe. I have 2.5 inch duals and have just as good of ground clearence than stock.
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Old Oct 13, 2008 | 04:15 PM
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Here is my setup bro..

3" off the Headers Y'd to a 4" section that I made, then narrow's down to a 3.5" with that Cut-out, then to a 3" over the Axle into the Muffler. It's really high-flow. It clears the ground well too, the lowest point is that damn Cross Member.

BTW, this is before the Cross Member got ripped off..

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Old Oct 13, 2008 | 04:18 PM
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ahh didnt know that. a duel through an X pipe then is the best way. you can merge the pipes onto the passenger sie and have them run to the back to save abit of ground clearance.
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Old Oct 13, 2008 | 04:37 PM
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Ironoutlaw, are you at stock height or lowered? I want to get strano springs and koni's some day, but am at stock height now.

I guess I can judge better once I have it back on the ground, its tempting though to hpipe it behind the trans crossmember and then do the dual bullets, I guess there is the downfall of the double diamond subframe connectors, most people with duals do not have them, and thus don't have the issue I'm looking at.

I think I will stick with the single 4" dumped idea, anyone out there have a 3" to 4" ypipe for sale?

Merv you said you made yours, do you have any up close pictures or what you used?
People say all the time that they made their own 4" ypipe but seem scared to post up what they used for parts or where you can get them. I know I don't want to pay the price Mufflex wants. To this day I still can't find the flowmaster 3" to 4" merge.

I already have the 4" bullet, so I guess if I do 4" dumped all I need now is to figure out the ypipe and find a 4" turndown.
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Old Oct 13, 2008 | 04:44 PM
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My car is stock height now with stock suspension. I would say i could lower it 1 inch and still be in great shape. I dont have a crossover pipe though, just two straight duals. If you go with an h you shouldnt lose any ground clearence though, with an x you probably will.
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Old Oct 13, 2008 | 04:46 PM
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I dont think I have pics of it handy any where..
It's just a piece of 3" that was cut inhalf on a slant, then welded together in a "V" Then I cut the end of it off to mate into a 4" piece, I cut it to where it overlapped by probably a 1/4" so it still have alot of flow, then welded it to the 4". Basically it's a perfect 3" to 4" Y-pipe.
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Old Oct 13, 2008 | 05:02 PM
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Yea, I have the Eibach sportlines. True 3" duals with an x pipe. Ground clearance is HORRIBLE. I am going to have to put the pro kit on or deal with the scraping EVERYWHERE! I love the sound, and I love the stance. I don't know which to get rid of. Not the sound because that is performance oriented, so most likely the springs.

D

By the way my sig pic is prior to true duals...
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Old Oct 13, 2008 | 09:06 PM
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Default this is all they have..

http://flowmastermufflers.com/produc...oducts_id=3675

http://www.flowmastermufflers.com/pr...oducts_id=3696

Thats all I see on their page...
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Old Oct 15, 2008 | 10:05 AM
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Anyone else out there about their 4" ypipe? Don't have the resources to attempt Merv's so if anyone has one for sale let me know.

Its getting tempting to order those ebay one chamber knockoff and just run them dumped off the collectors. I'd do bullets cause I love those, but I don't think I have enough space on the driver side before I hit the SFC, perhaps if I cut the end of the bullet off and weld the turndown to it, it could possibly fit.

Any real downside to no H or X pipe?
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Old Oct 18, 2008 | 10:05 AM
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How much more ground clearance is lost going with a 3" dual setup over a 2 1/2"?

I'm thinking of running 2 1/2" duals if the clearance will be decent. Summits Hpipe kit is under $50 as are the 2 1/2" bullets. I figure I might be at $200 in supplies for the whole exhaust. What should I use to reduce it off the headers, and how should I attach it to the Pacesetters?? I don't want to weld the setup to the headers, I'm tired of cutting exhaust when I have to take it off.
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Old Oct 18, 2008 | 10:52 AM
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Get them Stainless Band Clamps.. they work very well. I have them setup on mine, and I jut un-bolt them, and remove the Exhuast when I need to.
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Old Oct 18, 2008 | 10:55 AM
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Cool they are affordable to, I can order them if I order the exhaust stuff from Summit.
What seals better a butt or a lap? I suppose I should use a lap style, get a header reducer that will slip over the end of the header?
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Old Oct 18, 2008 | 11:03 AM
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Fck Summit, go to your local Napa, $10/piece.

Look in my pic, you can see mine, I have 3 of them. The 2 in the front are 3", and they are banded around the Y-Pipe, that's flared so it slips over the Header Collectors.
The one in the back is 3.5", and that's directly over a cut that I made so I can drop the whole Exhaust System when I'm pulling the Transmission out. It's just banded around the Pipe with the cut in the center of it, and it doesn't leak at all.

Last edited by the_merv; Oct 18, 2008 at 03:36 PM.
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Old Oct 19, 2008 | 08:37 PM
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Well I finally made up my mind. Just ordered two 3" band clamps, two 3" to 2.5" reducers, 2.5" h pipe kit, and two 2.5" bullets.

Anyone on here got a 2.5" h piped bullet setup? I wonder what it sounds like. Hopefully badass.

Decided screw the single 4" plan, no one on here seems to have one for sale, and the damn 4" turndown is $60?!!!! So yeah going the duals route, I guess screw ground clearance. Well at least I went 2.5" instead of 3" maybe I won't sacrifice it all.
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Old Oct 19, 2008 | 08:45 PM
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Hope it works out for ya.. it should have a nice sound to it.
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Old Oct 19, 2008 | 11:50 PM
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Originally Posted by camar0corey
Well I finally made up my mind. Just ordered two 3" band clamps, two 3" to 2.5" reducers, 2.5" h pipe kit, and two 2.5" bullets.

Anyone on here got a 2.5" h piped bullet setup? I wonder what it sounds like. Hopefully badass.

Decided screw the single 4" plan, no one on here seems to have one for sale, and the damn 4" turndown is $60?!!!! So yeah going the duals route, I guess screw ground clearance. Well at least I went 2.5" instead of 3" maybe I won't sacrifice it all.
What did all this cost you if i might ask?? I'm thinking 2.5" duals also. i have a couple new summit turbo muffs i'm thinking of throwing on just past the LTs., pass side has tons of room, drivers side is questionable.
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Old Oct 20, 2008 | 08:32 AM
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$189 shipped. I'm sure I'm still going to have to buy a few more pieces of pipe to get stuff where I want it, I need two hangers and such still, but I guess I have all the major parts for the job.

Yeah well with the double diamond SFC's I couldn't even dump single chambers off the collectors, so I guess eating up ground clearance it is.

With the 4" the ypipe would have been expensive and the 4" turndown is stupid expensive also. I guess I'll have a new 4" bullet for sale soon.
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