Well I have came to a few decisions for my exhaust from reading other posts..

A magnaflow muffler.. 2.25".. 14" long.. stainless steel.. usually $100+ but on ebay $80 free shipping...
http://cgi.ebay.com/ebaymotors/ws/eB...category=33636

then a Magnaflow carsound cat.. 2.25"..
http://cgi.ebay.com/ebaymotors/ws/eB...sPageName=WD1V

How do those two look... and then I would get custom 2.25" tubing..

Thanks Ian

 

Be sure you've considered these:

Pipe instead of cat - Never gets plugged, so it runs cooler (no grass fires!), increases milage, increases power, it's an '86 so there aren't any O2 sensors. Oh, and cheaper.

Supertrapp muffler - You can tune it in a matter of minutes to give more torque or high end power, or to give a different sound.

 

Hmm so your saying have no cat at all, and just the pipe? This is my DD so how loud would that be without the cat? And it would add more power and better mileage?

Ian

 

Nevermind about removing the cat... looked it up and doesn't seem like the greatest idea hah so I'll probably stick with the Magnaflow carsound cat... anyone have any experience with that? And what about the muffler that I am looking at?

 

Good call on keeping the cat. They're federally required.

 

yeah and an 86 does have an O2 sensor.

 

You will miss the cat when your idling on a trail and every one is complaining about the raw fuel smell if you take it off. Are you loking for a quiet muffler or just performance?

Magnaflow is good as well as dynomax.
here is a little info a copied off another site for your reading pleasure.





All tests via an independent lab
All tests @ 15” wc

2 “ Straight Pipe 283 CFM
2 ¼ “ Straight Pipe 365 CFM
2 ½ “ Straight Pipe 521 CFM

2 ¼” Typical Bent tailpipe 268 CFM
2 ½” Typical Bent Tailpipe 417 CFM

2 ¼” Inlet/Outlet_ Glass Pack Tips- No Louvers- Smooth 274 CFM
2 ¼” Inlet/Outlet- Glass Pack Tips-Louvered 133 CFM
Same as above set for reverse flow 141 CFM
2 ¼” Cherry Bomb 239 CFM
2 ½” Cherry Bomb 294 CFM

2 ½” Inlet/Outlet Dynomax Super Turbo 278 CFM
2 ½” Inlet/Outlet Ultraflow Bullet 512 CFM
2 ½” Inlet/Outlet Gibson Superflow 267 CFM
2 ½” Inlet/Outlet Flowmaster ( 2 Chamber) 249 CFM
2 ½” Inlet Outlet Flowmaster ( 3 Chamber) 229 CFM
2 ¼” Inlet/Outlet Thrush CVX 260 CFM
2 ½” Inlet/Outlet Maremount Cherry Bomb 298 CFM
2 ½” Inlet/Outlet Hooker Aero Chamber 324 CFM
2 ½” Inlet/Outlet Hooker Max Flow 521 CFM
2 ½” Inlet/Outlet Borla Turbo 373 CFM
2 1/2" Inlet/Outlet Magnaflow 284 CFM

Standard OEM 2 ¼” Inlet/Outlet 138-152 CFM
Standard OEM 2 ½” Inlet/Outlet 161-197 CFM
**************
This next comparison I found on a mustang forum.
*************
The results in HP order:
1.Flowtech Warlock (open) 374.2 hp/ 333.1 tq
2.Bassani Real Street 373.7 hp/ 333.8 tq
3.Hooker Maxflow 373.5 hp/ 333 tq
4.Borla XS 373.3 hp/ 332.6 tq
5.Magnaflow 372.8 / 332.5 tq
6.MAC 372.3 hp / 331.5 tq
7.Flowtech Afterburner 372.3 hp/ 330.1 tq
8.Hooker Aerochamber 372.1 hp/ 330.4 tq
9.Bassani 372 hp/ 333.5 tq
10.Spintech 371.6 hp/ 332.2 tq
11.Edelbrock Performer RPM 370.9 hp / 331.3 tq
12.Borla XR1 370 hp/ 334 tq
13.Flowtech Terminator 369.5 hp / 331.3 tq
14.Dynomax Ultra Flo 369.4 / 333.2 tq
15.Flowmaster 369.4 hp / 331.8 tq
16.Flowtech Warlock 366.3 hp / 325.3 tq
17.No muffs 365.2 hp / 330.1 tq

Sound Off in Quietest to Loudest (Decibels):

1.Borla XS, 80db at idle, 90db at 2,000 rpm, 110db at WOT.
2.Hooker Maxflow, 80db at idle, 90db at 2,000 rpm, 120db at WOT.
3.Magnaflow, 82db at idle, 91 at 2,000 rpm, 114db at WOT.
4.Flowmaster, 82db at idle, 93 at 2,000 rpm, 115db at WOT.
5.Flowtech Warlock, 83db at idle, 92 at 2,000 rpm, 112db at WOT.
6.Dynomax UltraFlo, 83db at idle, 94 at 2,000 rpm, 113db at WOT.
7.Borla XR1, 83db at idle, 96db at 2,000 rpm, 118db at WOT.
8.Bassani Street, 83db at idle, 96db at 2,000 rpm, 120db at WOT.
9.Edelbrock RPM, 84db at idle, 93db at 2,000 rpm, 118db at WOT.
10.Bassani Real Street, 84db at idle, 96db at 2,000 rpm, MAX. (120+db).
11.Flowtech Afterburner, 86db at idle, 94db at 2,000 rpm, 115db at WOT.
12.Flowtech Terminator, 86db at idle, 94db at 2,000 rpm, 119db at WOT.
13.Hooker Aerochamber, 87db at idle, 94db at 2,000 rpm, 114db at WOT.
14.SpinTech, 87db at idle, 97db at 2,000 rpm, 116db at WOT.
15.MAC, 87db at idle, 98db at 2,000 rpm, 119db at WOT.
16.No Muffler, 91db at idle, 103db at 2,000 rpm, MAX. (120+db).


If I remember right I picked these off a corvett or mustang forum so think v8 for the tests. Im not sure what model of "Blowmaster" thay are using but I have both a "Blowmaster 40 series" and a "Dynomax ultraflow SS" (identical to magnaflow design) and I can tell you for sure that the ultraflow is quieter,smoother and less restrictive. The staright through designs do get loud when you mash the loud pedal but thats expected. The Blowmaster was much louder.

Food for Thought....