Exhaust ?s - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


General Miata Chat A place to talk about anything Miata

Reply
 
 
 
LinkBack Thread Tools
Old 08-01-2007, 01:30 PM   #1
Elite Member
Thread Starter
iTrader: (9)
 
Join Date: Aug 2006
Location: Concord, North Carolina
Posts: 4,173
Total Cats: 5
Default Exhaust ?s

My exhaust is real rapsy...I'm cheap/poor and I'm thinking of ways to quiet it down. Would putting a glasspack in front of my muffler be a bad idea? I'm N/A right now but that wouldn't impede flow once I was turbocharged would it?

Its a full 2.5" system with a bit of an exhaust leak...and a test pipe...and a dynamax muffler. Once I get the turbo/downpipe in it SHOULD sound a lot better...but just looking for idea until then.
miatamania is offline   Reply With Quote
Old 08-01-2007, 01:54 PM   #2
Senior Member
iTrader: (2)
 
Join Date: May 2007
Location: Tampa, Florida
Posts: 502
Total Cats: 0
Default

Find a resonator from an S2000, or RSX, or even a Toyota Celica.Have it welded after your cat before your Muffler, or even in place of your muffler. It will quiet it down and get rid of the rasp. Ive seen it done on an 02, and it made a nice clean noise. (Removed OEM muffler, and just replaced it with a tiny Celica GTS resonator, bent some pipes and hung it. Saved a good bit of weight in the rear on my friends 02.)
drewbroo is offline   Reply With Quote
Old 08-01-2007, 02:04 PM   #3
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,865
Total Cats: 1,790
Default

It wouldn't be a bad idea, but go with a small round muffler instead, like a magnaflow. The design of glasspacks isn't smooth on the inside and would cause turbulence possibly backpressure.

http://www.magnaflow.com/02product/s...ne=main&id=498
Braineack is offline   Reply With Quote
Old 08-01-2007, 02:29 PM   #4
Elite Member
Thread Starter
iTrader: (9)
 
Join Date: Aug 2006
Location: Concord, North Carolina
Posts: 4,173
Total Cats: 5
Default

thats what I originally wanted...and I think I already priced something from you a while ago, but would that restrict flow?

EDIT: "Additional Information
The 4" round body muffler/resonator features the same internal straight-through construction, which can be used in conjunction with a muffler to reduce sound or independently as an aggressive sounding"

You still selling them Scott?
miatamania is offline   Reply With Quote
Old 08-01-2007, 02:37 PM   #5
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,865
Total Cats: 1,790
Default

no, magnaflow's wont restrict flow at all. Glasspacks will.



vs.



see the tiny louvers that redirect the flow....

you should be able to find cheap as resonators though, with the same design as the magnaflow....like Thrush or even summit racing.


unfortunatly I don't sell any part anymore. But email steve (at) magnaflowonline.com and ask for a deal. (dont mention me :gay
Braineack is offline   Reply With Quote
Old 08-01-2007, 02:57 PM   #6
y8s
2 Props,3 Dildos,& 1 Cat
iTrader: (8)
 
y8s's Avatar
 
Join Date: Jun 2005
Location: Fake Virginia
Posts: 19,038
Total Cats: 407
Default

DOOD just go to summit and get a dynomax bullet race muffler for $39.99.

http://store.summitracing.com/partde...5&autoview=sku
y8s is online now   Reply With Quote
Old 08-01-2007, 03:18 PM   #7
Elite Member
Thread Starter
iTrader: (9)
 
Join Date: Aug 2006
Location: Concord, North Carolina
Posts: 4,173
Total Cats: 5
Default

Quote:
Originally Posted by y8s View Post
DOOD just go to summit and get a dynomax bullet race muffler for $39.99.

http://store.summitracing.com/partde...5&autoview=sku
thats a bit smaller than the magnaflow too. Hell...maybe the dynomax products will work well together

The exhaust is mild steel...a shop should just be able to weld this right in wont they?


Thanks for the learning guys
miatamania is offline   Reply With Quote
Old 08-01-2007, 03:27 PM   #8
Cpt. Slow
iTrader: (25)
 
curly's Avatar
 
Join Date: Oct 2005
Location: Oregon City, OR
Posts: 12,107
Total Cats: 518
Default

yes they will be able to weld it in

I had a 2.5" cat, and 2.5" magnaflow muffler with my turbo, and thats damn near stock noise levels, maybe a titch louder. so if you can wait, I'd just do nothing until you get the turbo in, and then decide if you want to do anythign to the exhaust, if you want a system that's a little louder than stock, the configuration you have + turbo should be good.
curly is offline   Reply With Quote
Old 08-01-2007, 03:53 PM   #9
y8s
2 Props,3 Dildos,& 1 Cat
iTrader: (8)
 
y8s's Avatar
 
Join Date: Jun 2005
Location: Fake Virginia
Posts: 19,038
Total Cats: 407
Default

well for comparison I run the 3" version of that "resonator", cat, and a big fat magnaflow straight-thru muffler. my car is definitely quiet off-boost.
y8s is online now   Reply With Quote
Old 08-01-2007, 03:58 PM   #10
Junior Member
 
Join Date: Dec 2006
Posts: 209
Total Cats: -1
Default

Quote:
Originally Posted by miatamania View Post
My exhaust is real rapsy...I'm cheap/poor and I'm thinking of ways to quiet it down. Would putting a glasspack in front of my muffler be a bad idea? I'm N/A right now but that wouldn't impede flow once I was turbocharged would it?

Its a full 2.5" system with a bit of an exhaust leak...and a test pipe...and a dynamax muffler. Once I get the turbo/downpipe in it SHOULD sound a lot better...but just looking for idea until then.
When I got my testpipe put in it made my car alot more raspy. Maybe try using a cat instead? If you still had your old cat it would fit your criteria of "cheap"
ak47bravo is offline   Reply With Quote
Old 08-01-2007, 04:59 PM   #11
Elite Member
Thread Starter
iTrader: (9)
 
Join Date: Aug 2006
Location: Concord, North Carolina
Posts: 4,173
Total Cats: 5
Default

I traded the old cat for a steering wheel. I got rid of it because it was too small to mate up to the downpipe anyway. IT did make it slightly more raspy and a bit louder.

I didn't want to have to buy a new cat because I don't need to have one and loud isn't my first priority over sounding decent.
miatamania is offline   Reply With Quote
Old 08-01-2007, 05:31 PM   #12
Junior Member
 
Join Date: Dec 2006
Posts: 209
Total Cats: -1
Default

Quote:
Originally Posted by miatamania View Post
I traded the old cat for a steering wheel. I got rid of it because it was too small to mate up to the downpipe anyway. IT did make it slightly more raspy and a bit louder.

I didn't want to have to buy a new cat because I don't need to have one and loud isn't my first priority over sounding decent.
Lucky... I wouldn't have a cat if we weren't required.
ak47bravo is offline   Reply With Quote
Old 08-01-2007, 09:16 PM   #13
Elite Member
iTrader: (3)
 
Join Date: Dec 2004
Location: Houston
Posts: 2,904
Total Cats: 4
Default

www.enthuzacar.com

I like there stuff
Pitlab77 is offline   Reply With Quote
Old 08-02-2007, 03:00 PM   #14
Elite Member
Thread Starter
iTrader: (9)
 
Join Date: Aug 2006
Location: Concord, North Carolina
Posts: 4,173
Total Cats: 5
Default

so do I...but its rather expensive and I already have a 2.5" exhaust.

I just ordered the dynomax bullet muffler and should be here tommorrow or saturday. Maybe this will help out a bit
miatamania is offline   Reply With Quote
Old 08-03-2007, 12:26 AM   #15
Elite Member
iTrader: (3)
 
Join Date: Dec 2004
Location: Houston
Posts: 2,904
Total Cats: 4
Default

enthuza expensive??? For pre-made its great.
Pitlab77 is offline   Reply With Quote
Old 08-03-2007, 10:48 AM   #16
Elite Member
Thread Starter
iTrader: (9)
 
Join Date: Aug 2006
Location: Concord, North Carolina
Posts: 4,173
Total Cats: 5
Default

yeah, I mean, I already have a 2.5" catback...it works, I'm just trying to quiet it...If I'm going to buy another exhaust it should be 3" once I'm turbo'd.
miatamania is offline   Reply With Quote
Old 08-04-2007, 01:09 PM   #17
Elite Member
Thread Starter
iTrader: (9)
 
Join Date: Aug 2006
Location: Concord, North Carolina
Posts: 4,173
Total Cats: 5
Default

Went and had it put on yesterday, didn't get screwed to bad, but I really want to learn how to weld now. Car sounds a TON better, still a bit raspy down low, but quieter and smoother above 4k. Once the piping is the same turbo back and the exhaust leak is gone, it ought to sound pretty good.

Thanks guys, I'll try to get a sound clip.
miatamania is offline   Reply With Quote
Old 08-04-2007, 05:38 PM   #18
Tour de Franzia
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

Quote:
Originally Posted by Pitlab77 View Post
enthuza expensive??? For pre-made its great.
I bought the 3". Welds look great, and jason thinks it will fit. Hopefully my 3" exhuast on a 1.6 car with a 99 motor and bell dp worked out on his jig.
hustler is offline   Reply With Quote
Old 08-05-2007, 12:13 AM   #19
Elite Member
iTrader: (9)
 
TurboTim's Avatar
 
Join Date: Jun 2006
Location: Chesterfield, NJ
Posts: 6,484
Total Cats: 248
Default

Quote:
Originally Posted by Pitlab77 View Post
enthuza expensive??? For pre-made its great.
Yah. Trying to compete against their prices is a bitch.
TurboTim is offline   Reply With Quote
Old 08-05-2007, 01:42 AM   #20
Elite Member
iTrader: (3)
 
Join Date: Dec 2004
Location: Houston
Posts: 2,904
Total Cats: 4
Default

yeah especially for their turbo exhaust
Pitlab77 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 58 Yesterday 10:04 PM
Another Cast Manifold Corky Bell Prefabbed Turbo Kits 18 11-22-2016 10:01 PM
Hey everyone another n00b here Big_gumby Meet and Greet 80 10-05-2015 05:06 PM
Back to Stock Part Out!! Turbo Parts, MS2 Enhanced 01-05, Suspension, and MOAR! StratoBlue1109 Miata parts for sale/trade 16 10-02-2015 10:39 AM
1996 Turbo Build Goldwar DIY Turbo Discussion 2 09-29-2015 10:20 AM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 11:27 AM.