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Old 02-16-2010, 01:25 AM
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Exhaust Vs. Downpipe

just got a 97 prelude and was wondering if i would be better off buying a downpipe or a muffler for my car. also if i should get a muffler what kind, i also dont have a big budget so anywhere bewtween 100-200. thanks alot
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Old 02-16-2010, 01:38 AM
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Re: Exhaust Vs. Downpipe

huh?? is your exaust system stock.
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Old 02-16-2010, 01:52 AM
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Re: Exhaust Vs. Downpipe

ya my exhaust is stock right now?
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Old 02-16-2010, 01:52 AM
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Re: Exhaust Vs. Downpipe

exaust is stock right now
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Old 02-16-2010, 02:20 AM
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Re: Exhaust Vs. Downpipe

umm...downpipes are used in turbo applications. im going to go ahead and assume you meant header. just do a lot of research before you buy anything. i hate repeating myself but, you wont find good gains on a header unless you spend like 800 bills. same with a muffler, just look around. going on youtube and watch soundclips. bout it. also, theres been about 20 million exhaust threads already. browse through those
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Old 02-16-2010, 02:40 AM
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Re: Exhaust Vs. Downpipe

downpipes are the bottom half of your header lol

as for an exhaust uhh..where were you trying to get at?

if you keep a stock header and get a custom downpipe your just messing up the flow of your exhaust..
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Old 02-16-2010, 03:01 AM
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Re: Exhaust Vs. Downpipe

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Originally Posted by ImPorTuNeRdJ View Post
downpipes are the bottom half of your header lol

as for an exhaust uhh..where were you trying to get at?

if you keep a stock header and get a custom downpipe your just messing up the flow of your exhaust..
downpipes also connect the exhaust housing of the turbo to the cat. when i think of downpipe, i think of that lol. and who is just going to get the bottom half of the header?
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Old 02-16-2010, 03:14 AM
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Re: Exhaust Vs. Downpipe

Ok let me take a crack at it.

By down pipe im going to assume you mean the whole header, not just the bottom portion of portion of the header. BTW most people refer a down pipe to a turbo application.

So if your asking should you get a header or just a muffler. I would have to say go with a header rather than just a muffler, now if your talking about a full exhaust system then its up to you.
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Old 02-16-2010, 10:01 AM
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Re: Exhaust Vs. Downpipe

either way he only has $100-200 so in reality neither is feasible, because just a muffler will do nothing
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Old 02-16-2010, 12:55 PM
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Re: Exhaust Vs. Downpipe

ummm, so are you asking if you should get a header back or a cat back exhaust? Sorry I was confused by your question...but I don't think you will really get anywhere with only a couple hundred bucks to spare.

I really feel like you shouldn't cheap out when it comes to airflow in your car. I feel you really need to open up your car before you should do anything else. Restrictive airflow really inhibits the engine, so you are making a good choice to upgrade your exhaust now.

That said, I would go with a header back exhaust if you can spare the dough right now. Ceramic headers are good for the removal of heat, but a stainless header will stay prettier for longer, and really open up the airflow since it has a bigger collector.

mr_y82 (my husband) says to go on ebay and search for hytec tri-y. It's a 3 piece stainless header that has a 2.5" collector for $400-$500. He's also an RMF for H22 swapped civics for about the same price, but to use them in a prelude, you can't have power steering, A/C...there are some fitment issues...

Anyway, you can prob find a decent muffler online somewhere for a decent price...if I were you, I would go ahead an open up my exhaust to 2.5" if you can, with a high flow cat...but that would cost more than you want to spend...

Back in the day, before the engine swap, we had a flowmaster on a custom pipe with a simple chrome tip...sounded pretty damn good and didn't cost that much...if you are on a budget, go to hottexhaust.com and check out their set up with a magnaflow..those are also badass on a lude...

Sorry for the ranting... hope you can decide on a nice setup! Happy shopping! ;)
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Old 02-16-2010, 01:34 PM
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Re: Exhaust Vs. Downpipe

if your all stock and you only have 200 to spend i'd say either save it or get a k&n drop in filter and remove the intake resonator etc. that'll be a good first step imo. i know it's not exhaust but it'll help.
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Old 02-16-2010, 10:10 PM
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Re: Exhaust Vs. Downpipe

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Originally Posted by 01preludeperformance View Post
kid downpipes r used on turbo modified cars, not on stock and even if your car has a down pipe it would still have an exhaust system. what you said makes nooooooo sense!!!!!!!!
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Originally Posted by 01preludeperformance View Post
For real, look its all good if u dontknow much about cars, but. Don't try and pretend like u do. If your tryn to learn do some resarch and learn, so u don't say rediculous statements on this forum.
what are you talking about? your stating wrongful information as well.

downpipes are used on turbo modified cars not stock?

dude, a header is this.


a downpipe is this.


most people REFER to downpipes in turbo situations seperately due to the fact most turbo manifolds do not INCLUDE the downpipe so people have to purchase or make there own downpipe.

none the less EVERY car contains one regardless N/A or FI.
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Old 02-16-2010, 10:52 PM
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Re: Exhaust Vs. Downpipe

Ya...the term down pipe is more commonly used with turbo setups. .with n/a or supercharged when your dealing with a header...the top portion is the header...the pipe that goes 2 pipes to 1...is a collector pipe...if its a singular pipe its usually a downpipe from a turbo
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Old 02-17-2010, 03:52 AM
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Re: Exhaust Vs. Downpipe

Firstly, thread cleaned up. Keep it tidy guys.

Quote:
Originally Posted by cleanbb6 View Post
Ya...the term down pipe is more commonly used with turbo setups. .with n/a or supercharged when your dealing with a header...the top portion is the header...the pipe that goes 2 pipes to 1...is a collector pipe...if its a singular pipe its usually a downpipe from a turbo
If you're gonna get really technical on this, the top part (which you termed as "header") is the primary and the lower part (referred to as the "down pipe") is the secondary.

Yes the term "down pipe" is commonly used with turbo setups, but it's not an incorrect term.

As far as exhaust goes, advise is a high flow cat converter (don't get a test pipe, I'll fly over there and you, I mean it), mandrel bent stainless system to whatever kind of muffler you want. I personally like the Magnaflow dual upswept tip style, but this is a very personal thing. Until you start pushing large power, the stock header is good enough, and improving on it (most aftermarket ones are only a copy of the oem one, just prettier) can cost upwards of eleventy hundred bucks. RMF or SMSP would be my advise for a killer header, and apparantly Fujitsubo make a good one too. (Or get your local exhaust shop to make one, probly cost the same.)
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Old 02-17-2010, 04:05 AM
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Re: Exhaust Vs. Downpipe

plus test pipes make your car buzz with raspy ****!
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Old 02-18-2010, 08:36 PM
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Re: Exhaust Vs. Downpipe

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Originally Posted by dillont View Post
just got a 97 prelude and was wondering if i would be better off buying a downpipe or a muffler for my car. also if i should get a muffler what kind, i also dont have a big budget so anywhere bewtween 100-200. thanks alot


No need to argue, he should have just used the search feature and never posted.
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Old 02-21-2010, 06:38 PM
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Re: Exhaust Vs. Downpipe

test pipe = no restriction. down pipe is used on turbos only, it is not called a downpipe on an N/A motor
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Old 02-21-2010, 08:03 PM
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Re: Exhaust Vs. Downpipe

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Originally Posted by dillont View Post
just got a 97 prelude and was wondering if i would be better off buying a downpipe or a muffler for my car. also if i should get a muffler what kind, i also dont have a big budget so anywhere bewtween 100-200. thanks alot
dillont,

It's my belief that you want the diameter of your exhaust to be consistent. That being said, you shouldn't just get either a muffler or a header (I'm assuming that's what you meant by downpipe). Solution: get a header, take it to a muffler shop, or multiple muffler shops, and ask how much to get a collector modification to the header, have it installed and in addition get a new exhaust to match. Some people talk about 2 1/2" OD exhausts, a lot of cat back systems appear to be a little smaller at 60mm (2 3/8"). So tell them you want something along the lines of this.

If you're too poor to get this all done at once and since air that is heated takes up more space than air that is cool I would assume you would want to start from header and end with the muffler if you are going to do it piece by piece. It will cost you more in the long run but it's more gratifying than lay-away I suppose. So like this.

1. Purchase header.
2. Collector mod to header to increase from 2" to 60mm or 2 1/2".
3. 60mm or 2.5" high flow catalytic converter.
4. Either just buy a 60mm or 2.5" cat back system or have a shop weld one up for you and just buy the muffler itself (in this case I would probably go with one of those twin loop cheapo ones on ebay.
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