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Discussion Starter · #1 ·
I was looking to modify my exhaust and I've been looking around here and have a couple ?s. <p>1. I'm interested in the magna flow muffler that alot of ppl here have, but I see that some people have the oval canned shape that's long and lean and some people have the rectangular looking shaped one. Can anyone tell me the difference and the part number that would work for a 2001 V70?<p>2. I'm not sure on this one, but if I did the JRL mod and added a magnaflow muffler to replace the stock one, will that be WAY TOO loud and resonate too much? I've seen alot of ppl that have the magnaflow exhaust also have the resonator still attached. And if the resonator needs to still be attached, would the stock one suffice or would it be best to replace it with another magnaflow piece? <p>Anyways, I'm just looking for possible combinations that sounds the best and is the cheapest! <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/smile.gif" BORDER="0"> Thanks alot for your suggestions. Oh, and part numbers would be a plus! thanks!
 

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Re: magnaflow exhaust mod part number? with JRL mod? (timwu12)

It's gonna be pretty loud with Magnaflow only, especially at 2000-3000 rpm.<p>If you just want some more noise, go to an exhaust shop and have them weld in a straight through muffler in place of the rear muffler. If that's not loud enough have them remove the resonator. If that's too loud then, add a free flowing resonator. Now you're at about $400, which would buy you a custom 3" cat back. Go and ask for an opinion e.g. from AJ's on Mira Mesa blvd, or WTB Mufflers on Dowdy, off Miramar rd (if they still exist).
 

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Re: magnaflow exhaust mod part number? with JRL mod? (timwu12)

What's the point?<br>You have an agonizing slow non turbo wagon why make it louder, what for?<br>If you MUST, do my mod and remove the resonator.<br>It will give it a nice little purr and that should be enough as you have nothing else to back it up!
 

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Discussion Starter · #5 ·
HEY MIKA! <p>thanks for the suggestion! when I ask them to take off the rear muffler and weld on a straight through piece, is that literally just a straight piece of SS or would it be a straight through aftermarket muffler?<p>ooh btw, I now live down the street from where you work now! haha<BR><BR>
<i>Modified by timwu12 at 6:44 PM 8-18-2009</i>
 

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Re: (timwu12)

I meant a straight through aftermarket muffler if you replace the rear muffler, or straight pipe if you just remove the center resonator. Former will be louder for sure. You can start with asking them to weld flanges to the pipes and to the center resonator. That way you don't need to buy any parts if you do JRL mod and you can revert it without paying anyone. Just swap the straight pipe to resonator.<p>That on Lusk? My office moved one intersection up the Lusk, next to that weird colorful building.
 

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Discussion Starter · #7 ·
oh cool! do you happen to know the inlet and outlet size I would need to use to replace the rear muffler? Is it 2.25" in and 2.5" out?<p>Oh, I live even closer to that building! I live right across the street from there on wateridge circle at the wateridge townhouses!
 

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Re: (timwu12)

Wateridge was what I was thinkin. I let it rip through that uphill on the way work, don't let me wake you up.<p>It's roughly that size, a little under 2 1/4" in and about 2 1/2" out. But it will need some bends when welding a straight muffler piece so 2 1/2" would probably work best. Ask around, it may not be much more expensive to have a 2 3/4 or 3" cat back custom made, and I might provide some performance benefit if you chip the car later.
 

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Discussion Starter · #9 ·
LOL, I ALWAYS let it rip up that hill! haha<p>Hmm, that's a good suggestion, I'll ask around tomorrow on the pricing for the cat back system. However, if I did this, does the car need to be chipped afterwards?
 

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Re: (timwu12)

No, you don't need to chip. But the free flowing cat back is more beneficial in a chipped car. It mostly just adds noise in a stock car, maybe perhaps a couple of hp at high end. It also helps keep the turbo cooler when chipped.<p>You can also check ready made cat back systems from the companies that advertise here. I think the prices have come down since I bought mine; haven't been keeping up to date with that stuff.
 

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Discussion Starter · #11 ·
alright, sounds good! I'll let you know what I find in case I need your help in chipping my car! <IMG NAME="icon" SRC="http://www.vwvortex.com/vwbb/smile.gif" BORDER="0">
 

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Discussion Starter · #12 ·
so, I called dualtones in PB and they said it would be like $150 for just the rear muffler, or like $250 for a 2.5" cat back system (just 1 muffler, and no resonator) if I wanted to add a resonator on, it'd be like another $100. <p>so, I was wondering, would spending the extra 100 on a cat back be a better deal than just changing out the muffler? And if that is a better deal, would the car be so loud that it'd be pretty annoying? What about the resonance from it?
 

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Re: (timwu12)

To me, adding a new system for $350 and not cutting the old would be a better choice. That way you can swap the old system back when you sell the car and you can still get a few bucks selling the custom system to some other sucka. ;-)<p>Make a deal with them that they tune the cat back so that it does not resonate. You will hear the exhaust in the car anyway, be prepared for that.<p>It's pretty likely that a single pipe 2 1/2" system resonates at 2k rpm without a center resonator. The location of the resonator is the key, it has to be where the crest of the offending sound wave is (which depends on a lot of parameters). If the shop is good they know what they should do when you ask.<p>Adding a resonator afterwards is not too hard. I cut a piece off my IPD cat back and added a generic $50 glass pack with clamps to kill a resonance.
 

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Discussion Starter · #14 ·
Mika, if I wanted to chip my car, would I be able to pay you and have you chip it via your laptop, or would I need to send it in?
 

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Discussion Starter · #16 ·
so, I was thinking, I saw a picture of a guy's s60 where he welded the straight through muffler right after the stock resonator and then ran a straight pipe from there all the way out. Would that be a good alternative to a custom cat back, or would it still be best to get all new aftermarket parts. I'm pretty much just trying to decide on whether or not to keep the stock resonator or not bc if I don't, and do the custom cat back, I'll still probably need a resonator anyways, so if I kept the stock resonator, and added the straight through muffler directly right after it and then ran a straight pipe out, would I still be able to take advantage of any benefits from chipping the ecu?<p>Sorry if this is confusing Mika! haha, but I really appreciate your help!
 

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Re: (timwu12)

You'll have a better flow with a full 2 1/2" system. You'll get the noise benefits from mdifying the stock system. Do you have storage to keep the stock pipe in ?<p>The stock resonator is not straight thru. Also, the best place for the muffler is as close to tail pipe as possible. (for muffling)
 

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Discussion Starter · #18 ·
Re: (Mika)

hmm, i do have a garage now that I could store it in, but then I'd have to bring it back up north in like a yr's time, so there really isn't a real incentive for me to keep the stock exhaust as my parents probably aren't going to sell this car haha. I'll sit on it and think about it some more!
 
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