muffler! - Z31 Performance

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onefast87

Senior Member

Posts: 696
#1

muffler!

10-05-2006, 04:21 PM

OK WELL, i went to my local exaust shop and they want an outrageous price of 950$ to finish half of my exaust with 3" mandrel bends!
so my next option is somthing like this!

http://store.summitracing.com/partdetai … toview=sku

do you guys think that this type of muffler will help to quiet it down!
if you can find a better 3" round muffler please show me!

for now a 3" downpipe and 3 feet or exaust is ok, but it needs to be more quiet! i can barely hear myself talking when im down the highway!

http://www.youtube.com/user/onefast87
300zxt

Senior Member

Posts: 1712
#2

10-05-2006, 04:42 PM

A muffler like that will do nothing for sound dampening… That's basically a resonator and I dont even think they're legal to use in place of a normal muffler, at least in most places they arent.

I dont think there's much you can really do to quieten down an exhaust that short lol

http://youtube.com/c/zcartube
Rick88ss

Senior Member

Posts: 2433
#3

10-05-2006, 05:12 PM

Your best bet is a Certified Muffler cat back with a Magnaflow stainless steel muffler.Not too loud and sounds really nice when you step on the gas.

Shiro #443
bemis

Senior Member

Posts: 696
#4

10-05-2006, 06:15 PM

I have a 3 foot long, 2.5 inch ID glasspack under my 86 2x2 and it did nothing to quite the engine down. it just filtered out most of the high pitched exhaust notes.

~~1984 300ZXT~~
~~1986 300ZX 2x2 NA2T~~
2000 Porsche Boxster
2007 Toyota Yaris
Jason84NA2T

Senior Member

Posts: 2909
#5

10-05-2006, 07:13 PM

I have one of those where the cat was. I think it does nothign but lower the exhaust pitch slightly.

OR-Zman

Senior Member

Posts: 811
#6

10-05-2006, 11:38 PM

You need to find a different shop. $950 is just insane.

Just stand back and throw money.
Performance costs money.
Reliable performance costs more.
SATAN

Senior Member

Posts: 6782
#7

10-05-2006, 11:49 PM

first off, running the exhaust fully to the rear of the car will do more for making it quiet than any other option you do. Ok, it doesnt make it quiet but it puts the sound behind you instead of under your feet which helps A LOT

85 Z31 6.0 LSX turbo 766whp/792wtq
04 GTO, LS6, big cam, porting, N20… underway for summertime daily driver.
craZed

Senior Member

Posts: 530
#8

10-06-2006, 12:09 AM

OR-Zman wrote: You need to find a different shop. $950 is just insane.

imagination is a virtue
EEMz31

Member

Posts: 41
#9

10-06-2006, 08:41 AM

OR-Zman wrote: You need to find a different shop. $950 is just insane.

Yeah 950 is insane 3" of the headers for my 89 f250 was half that and it is dual pipes
Firehawk

Senior Member

Posts: 950
#10

10-06-2006, 04:14 PM

I will be selling 3" turbo back with madrel bend exhausts with muffler for $500 plus shipping, and this includes a test pipe to swap out either it or the cat.
Attached Files

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Chuck Stong
300+ Parts and Performance owner
http://www.300-plus.com
2002 ZCOT president and always active member

WhiteZ31

Member

Posts: 45
#11

10-10-2006, 11:57 PM

rich ass shop those machines are like 50k

Stocker 87 na z31 and a slightly modded 90 240sx
Domdogg123

Senior Member

Posts: 491
#12

10-11-2006, 12:51 AM

more like $100,000?

It may not be a Z, but it's still got a turbo…
G-E

Junior Member

Posts: 6320
#13

10-11-2006, 10:11 AM

buy them used for 10-15k
MrwassmanNA2T

Senior Member

Posts: 2319
#14

10-11-2006, 12:08 PM

G-E wrote: buy them used for 10-15k

yeah the cheap chinese ones.

Terrible idea putting those wheels on…
benz-tech

Senior Member

Posts: 311
#15

10-12-2006, 07:39 PM

I have a 3" 4x11x14" Magnaflow on an NA engine and it is pretty quiet also. One solution for mandrel bends, if you have a welder, is to buy a muffler-back 3" mandrel bent exh for aFord or Chevy pickup and cut and use the bends as needed. last time I did this it cost me about $75 for the piping and 80 bucks for a Magnaflow. It takes some fab work, but if you have the tools it is actually not too hard. Tack weld everything in place, then remove it and fully weld it up. hmm, at 950 you could almost buy a used mig-welder…

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