Interest in a DIY Muffler Delete Pipes?
 

Well the track season is over and I have been crawling up the walls looking for something to do. This got me thinking about the one thing that really bugs me about the 370Z (with stock exhaust) at the track. The exhaust sound is so disappointing.

A quick review of Ebay motors shows cat back exhausts running from around $500 to as much as you wish to pay…But one company sells “short tails” for $300 which are just muffler delete pipes. Maybe I can do better…

My latest project is constructing a set of muffler delete pipes out of materials readily available at your local auto parts store (think crude bends and plenty of flexi pipe). I am about 50% complete and I can tell you that it can be done and for a price of around a little less than $100. The construction is very sturdy. And the sound…:icon17:

Keep in mind that your local exhaust shop may be able to do a much nicer system for around the same money (I know that one member had a set done for $170). But where is the fun in that!

What do you think? Anyone interested?

Teaser...
 

Pretty ugly man! But i bet its going to sound beast. Look at getting some after market tips to throw on there!

I all honesty, are you being serious or joking brah?

Personally, I think the 370z deserves a higher class of exhaust than some flex pipe pepboys special.

Isn't visually appealing, but at the track, I would take the sound! Good job! Spend the extra money you have left over on tires. :)

Why are you tracking with a stock exhaust?
At least open it up a little with an eBay y-pipe if you're that... Economical?

:wtf2:

at least get a mandrel bent muffler delete for the sake of appearance. that looks soooooooo cheap, regueardless of gains.

:icon17:Dollar wise, exhaust is low on my list. It always has to be 1) entry fee, 2) brake pads, 3) rotors, 4) tires, 5) synthetic fluids, 6) track sundries, and 7) gifts for my wife.

Remember, the point of my project was 1st to break my off season depression and 2nd to see if I could design a low buck muffler delete that anyone on the forum could replicate. I wanted to develop a solidly engineered muffler delete that could be installed easily and develop (quoting a previous poster) “beastly” sound. And I have done that.

Really, our cars sound so weak at the track with a stock exhaust. I am not interested in HP gains with this system.

Off course I could have used mandrel bends. And I suggest that if you wish to replicate a similar system please do. However, the cost of mandrel bends starts nearing a professionally welded system.

For all you hard parkers out there (if you don’t know what that means just check the urban dictionary) I understand that you will never get this "brah".

But I know that all you track guys will.

I will post the DIY sometime next week. You will see that I eliminated the flexi-pipe because it turned out to be a weak spot in the system.

And it really does sound bad a$$! :icon17:

I paid $120 to have them cut the factory flanges off the tail section and also the tips, bend some new pipe and weld it back together minus the suitcase muffler and looks a bazillion times better than that for only $20 more. If you are scroungen for $20 then I dont know what to tell ya. **** I thought I was being cheap on what I did, but damn man you took it to a whole different level and look. At least mine looks factory.

But you could have done it your self. Do you ever watch Gears? What are you working on? You just don't get it.

I'm sorry brother, you're not going to get any love from any of us...

IMO you can't buy a 30k+ car and put a $12 exhaust on it...


This is even more ghetto than the washer mod (might want to look at that)



If you want it louder for a track and want to lose weight, just take the whole muffler off next time and call it a day

So I can assume you ordered ever part from nissans part counter, then put the Z you now own together like a model car? I have torn the whole rear trunk area of my car apart to remove the tailights and the front bumper to remove the headlights, but I personally dont have access anymore to a pipe bender nor a welder. I have done coilovers, f/r sways, rear LCA's, front upper a-arms, front lower tie bar, front upper tie bar, cat back exhaust, complete ES hyperflex bushing kit, distributer, coil pack, master fuel relay, ignitor, cap, rotor, fuel filter, then drove it to have a guy do the alignment on my other car, even when I know how to do a string alignment. Sometimes there are things that are best left to a person that has the tools and equipment. I have also done my friends konis with GC's, f/r sways, front upper/lower tie bar, rear upper/lower tie bars, cat back exhaust, then again drove it to get aligned. I am all for doing things on your own, but $20 extra vs that, come on dude. $65 alignment vs the sting method and risk destroying $1k in tires, I will spend the little extra money and make sure it is spot on. The justification vs the look on such beautiful car doesnt equate out to me. :icon14:

:icon18:
Washer mod no good?????

Washer mod is better than this IMHO

More washers louder exhaust!!

http://www.telusplanet.net/public/ku...bit_result.jpg how about this instead.........

How are you going to buy Okyno 7.1ch and then skrimp on $20. That thing set you back what ~$400 new, should have got something a touch cheaper and put it towards a welder.

similar to mine, but I have two 12" glasspacks, because its all straight pipes from the headers back.
http://imageshack.us/a/img824/2003/imageyqt.jpg

I disagree mike....yours is completely different lol. Glass packs are legit and yours is straight pipe compared to his just being axle backs. a full set up as such to reduce weight and make noise is a big difference.

sooooo don't do this to a NISMO exhaust

you can... you'll just get flamed worse for buying a nismo and doing it... you have been warned lol

Got it =)

so is it bad if i were to buy some ebay mufflers and go to an exhaust shop and custom build axle back exhaust?

This is a nominee for most retarded mods for 2013!

Track guy/shade tree mechanic or not this is just re re tard ed

Blatant disregard for delivery!

That's like saying I wanna remove weight for the track so chop the top off?

Looks like the exhaust I have on my dryer down in the basement

I am so glad I started this thread. This is hilarious!

I hope you know that my use of cheap bends actually cheapens YOUR 370Z! I know that this haunts you and has prevented you from sleeping since my first post.

You guys are such a bunch of prima donnas!

And Mike, I love the exhaust. What I thought you guys would see is that it is possible to easily develop and install a muffler delete on our cars. The main problem is that you normally need to weld flanges on to the exhaust to connect to the mid pipe section. But I found a way to do it without welding. Check my upcoming DIY. I like creating things on my own. Keep in mind that I developed the first brake cooling duct DIY more than a year before Stillen had its kit.

I can swap out my muffler in less than 20 minutes at the track for some great sound. In hindsight, I guess I should have posted this thread in the track section.

You guys ripping on this dude for kludging something together for the track is pretty funny to me.

It's his car, he can do what he wants. At least he takes it to the track, makes whatever he does to the car in the name of tracking a thousand percent more 'legit' than what most of you inflict upon your cars.

Seriously. I'm as critical as it comes of other people's cars, but this guy doesn't deserve the lambasting he's getting for sharing his winter project with you jerks.

:(

Is it ugly as homemade sin? Yes
Is it something I would do to my car? No
Does it accomplish what the OP set out to do? YES

Nice project. As I said, not something I would do, but it shows a certain amount of good old Yankee ingenuity. Ignore the naysayers and keep experimenting. :tup:

:iagree:

I think it's a cool little project to do if you're bored and glad it worked out for OP. Just like with your home made splitter and diffuser, they may not be the prettiest looking parts, but they do what they're supposed to. I'd love to hear a sound clip of it.

I wanted to do custom short tails to use with my Berk CBE, but I'll probably have one made by an exhaust shop if I decide to get one.

So you are complaining the car looks so badass but doesnt sound it? So you go and make the exhaust sound badass to fit the car while making it look like some hackjob over ~$20? Am I getting that right? If the Z looked like a hackjob and went fast then a hackjob exhaust would go hand in hand, but the Z doesnt look like a hackjob that goes fast. Mine that my muffler guy did, unbolt too, and the factory bolts right back up.

id love to take mine to an actual track but hawaii doesnt have one. the autocross here isnt very fulfilling and as you know, back in texas i didnt have my car very long before i could prep it to even make it worth. ill be a track demon once i get back to the mainland. my point isnt the hideous look behind it or how cheap it is. its just completely ineffective to accomplish anything but make noise. hes losing +/- 15lbs off the back of car but with stock cats and piping, its just for noise. its like a civic changing his mufflers. criticize away :stirthepot:

Lol your situation is a special one. I know you'd be tracking if you were still here bro.

If he wants noise, why not? Lol

Sent from my SAMSUNG-SGH-I717 using Tapatalk 2

Hey, thanks guys. I appreciate the support.

And just to stir the pot a little more… :stirthepot::stirthepot::stirthepot:
http://www.the370z.com/members/resip...1100-skull.jpg

:shakes head: :icon17:

You know what would be cool? A single exit exhaust that comes out of the fog light area Aventador style.

That would be a great project, but my trailer hitch prevents it.

Uh oh… Did I say trailer hitch on a 370Z? :stirthepot:

Save your pennies and get this: AAM Short Tail Exhaust

http://farm6.static.flickr.com/5169/...292734a8ba.jpg

That fence post sticking out the back of your car looks hideous, even if it is only for track use.

Do you have one? I REALLY want one

Think he is doing this to jerk everybody's chain, :stirthepot: and to see what he could come up with for his needs at the track. Hell, I've come up with some stupid things when I was racing motorcycles.