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Old Jul 7, 2004 | 08:57 AM
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Default More true dual questions...

Hey everyone. I'm saving money like I never have before, trying to get enough for some decent mods. I want to start with true dual exhaust and was wondering if it could work with shorty headers. I saw the Edelbrock shorties they had on Horsepower TV (yes, I know the dyno test probably wasn't accurate) and liked those, because they're emissions legal and cheaper than the LT's I was looking at, and probably easier to install as well. Are they ok or should I just get Kook's or Hookers or something (No Flowtech/Pacesetter)? I was going to get a custom Speed, Inc. true dual setup, but I'm thinking about buying my mufflers of choice, a H-pipe (not X), and possibly some cats then having one of my buddies, who does exhaust, help me fabricate a custom system dumping before the axle. Sound like a good idea? I was thinking I could get EXACTLY what I want and more than likely save some money too. Thanks.
--adam
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Old Jul 7, 2004 | 10:31 AM
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Originally Posted by bull99ls1
Hey everyone. I'm saving money like I never have before, trying to get enough for some decent mods. I want to start with true dual exhaust and was wondering if it could work with shorty headers. I saw the Edelbrock shorties they had on Horsepower TV (yes, I know the dyno test probably wasn't accurate) and liked those, because they're emissions legal and cheaper than the LT's I was looking at, and probably easier to install as well. Are they ok or should I just get Kook's or Hookers or something (No Flowtech/Pacesetter)? I was going to get a custom Speed, Inc. true dual setup, but I'm thinking about buying my mufflers of choice, a H-pipe (not X), and possibly some cats then having one of my buddies, who does exhaust, help me fabricate a custom system dumping before the axle. Sound like a good idea? I was thinking I could get EXACTLY what I want and more than likely save some money too. Thanks.
--adam
But why even bother to go with shortie's? Seriously the stock manifolds dont flow all that bad, but if you switch to shorties your not looking at a nice rwhp gain. Most LS1 owners wont even mess with anything under midlenghts. IMHO if your looking to spend 300-400 on a pair of nice shorties.. I'd buy some pacesetter LT's. LT's are the only way to go, and unless you go with SLP Longtubes you really wont have to worry about any clearence issues. I know your against the whole Pacesetter idea, but they really are pretty damn good set of headers for the money. If you plan on keeping your car for ever maybe go with some stainless steel headers or higher end headers like Kooks or the Hookers, but if your gonna keep your car than maybe 8-10 years tops I cant see spending lots and lots of cash on Headers when the pacesetters are just as good. BTW dont ever ever believe anything from Horsepower TV.. You've gotta realize that the whole show is meant for nothing more than to market new products. Its just a version of a cool "commercial" Also I was just currious as to why your planning on an H pipe vs. an X? I've always been a fan on the X but i havent heard that many people going with the H.
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Old Jul 7, 2004 | 02:13 PM
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shorties aren't much easier to install. if you gotta put headers on, get lt's or don't waste your time. Don't **** on pacesetters too much. I even go tthe painted ones to save money and they still look great (had em since november). And i made 340 rwhp untuned with them on a 98z. so they make the power. I did clean up some of the **** inside, which took all of 2 minutes and some common sense.

now for the x vs h thing. I came from teh mustang crowd and this is what i learned there. X will make a better sound with straight through mufflers. Very refined, smooth sound and you will typically pick up more power. An H pipe will yeild more power down low, the sound is typically more raw, an older v8 sound.

for the record about emissions...if you have rear tail pipe emissions tests, you'll pass with ease with lts and cats. With carsound cats in my y pipe with lts through a hooker catback (my first of 10 exhaust set ups) i passed with flying colors.
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Old Jul 7, 2004 | 02:28 PM
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ohmyneck, you goin with duels? what muffler shop would you go to? i called performance muffler in norman and they gave me a great estimate price.

i have heard basically the same as slik, x makes more power and sounds better with straight through muffs, but h's sound better with chambered muffs
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Old Jul 7, 2004 | 02:37 PM
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I always heard that the X-pipe offered slightly increased power, while the H-pipe sounded a wee bit better??

Don't get shorties!! Look at Mac mid-lengths or pacesetters if you want cheap ones.

As for emissions, that depends on what kind of tests they use. I passed the emissions here (my county and one next to me the only two in the whole GD state that have them!!!) with my exhaust the way it is now
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Old Jul 7, 2004 | 02:45 PM
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Originally Posted by blkZ28spt
As for emissions, that depends on what kind of tests they use. I passed the emissions here (my county and one next to me the only two in the whole GD state that have them!!!) with my exhaust the way it is now
Oh man must that suck.

I had Macs on my car and switched to the flowtechs. I am not personally impressed with the flowtechs at all. I am going to switch them out to a set of QTP's here REAL soon. If I had it to do over again, I would have just kept my macs.
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Old Jul 7, 2004 | 03:57 PM
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i have to pass OBD2 and a tail pipe test. Andrew Jackson tends to be a very good negotiator.
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Old Jul 7, 2004 | 04:27 PM
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Originally Posted by zchgla
ohmyneck, you goin with duels? what muffler shop would you go to? i called performance muffler in norman and they gave me a great estimate price.

i have heard basically the same as slik, x makes more power and sounds better with straight through muffs, but h's sound better with chambered muffs
I want true duals, but honestly I dont trust any shops in Oklahoma period. I've been to 3 diffrent shops getting various things done, and everytime I've had bad luck. I've hear good things about performance muffler in Norman.. but I'm going with Lanes true duals. I'm going with the flow pro twisties which all come welded together and with an X-pipe. Will sound pretty nice if I can ever get my other toys sold.
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Old Jul 7, 2004 | 05:58 PM
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ya, i would do lanes also...but i dont wanna spend that much honestly. performance quoted me 190 for an H without mufflers which is an excellent price, now i just gotta see some pics or cars they have done so i can make my decision. if you know of anyone who has had them done there shoot me a pm.
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Old Jul 7, 2004 | 11:10 PM
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Hey everyone, thanks for responding. So say I go with Pacesetter long tubes, some 3" tubing, two high-flow catalytic convertors (say Catco's), a Flowtech X-pipe or custom adapted Mac ProChamber H-pipe, and Magnaflow 4"x9" oval or Spintech Pro-Street mufflers, would that be a good setup?
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Old Jul 8, 2004 | 02:05 AM
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sounds like a kick *** setup to me man. you might not need 3" if your gonna stay mostly stock but im sure its louder so if you want go for it. gonna sound like a beast!
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Old Jul 8, 2004 | 09:55 AM
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Thanks. Actually, the only reason I'm really looking at 3" is because the X-pipe I want is 3". If I could find 2.5" I don't think I'd mind that. Would there be any huge performance loss or gain by stepping down .5"? Thank you all for enlightening a newbie.
--Adam
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Old Jul 9, 2004 | 10:30 AM
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Say if I decide to actually splurge and get some Hooker headers with 3" collectors, could I even run 2.5" exhaust? Doesn't it have to be 3" as well?
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Old Jul 9, 2004 | 12:07 PM
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Originally Posted by bull99ls1
Say if I decide to actually splurge and get some Hooker headers with 3" collectors, could I even run 2.5" exhaust? Doesn't it have to be 3" as well?
No. You can get flanged reduces to go from 3" to 2.5". You can get all you parts in 2.5 or 3", whatever you want. There are alot of possibilities. The hardest part is finding a good place to do it and not hacking it up. I believe you already have that covered. Good Luck
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Old Jul 9, 2004 | 01:17 PM
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what he said, you can get 2.5 inch X, and do a search for people asking about 3" on a stock car, most said it will feel a little soggy on the bottom end, but i know it will be louder.
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Old Jul 9, 2004 | 03:03 PM
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Thanks everyone. Actually, I'm doing it more for the performance gain and quality of the sound, so I'm sure 2.5" would be plenty loud. Are these reducers common? I'm sure I just probably haven't seen them. Do they hurt performance at all?
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Old Jul 9, 2004 | 03:16 PM
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You could get an X-pipe setup that is 3" into the pipe and 2.5" out. I think that will work very well. Some people will argue that ist he best for performance, because the exhaust gases shrink as they cool after leaving the engine and the smaller diam. pipe further from the engine will allow the velocity of the shrinking gas to remain high. As was stated, finding a good shop is one of the hardest things for people doing duals but Speed Inc will serve you well
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