Im willing to bet this is something new to the forum.... one day with nothing to do i decided to design and build a muffler for the '94 formula basically just to see if i could do it. so i drew up a couple blueprints and went down to the shop and whipped out some sheet metal and a 6 inch grinder with a cut off wheel and cut all the peices i needed andweldedthem together into a very unrestrictive pattern then i went to town and bought a 3 inch pipe adapter and 2 2.5" adapters and put them in it like the stock crossflow mufflers have, then i ground down all the welds and polished it up a bit with a wire wheel and painted it with aluminum color 1500 degree ceramic paint after 10 hrs of work. Then i removed the stock exhaust and put on my muffler. i started up the car and much to my suprise it sounded awesome! it looks a bit crude but it really has a nice tone. ill try to get some pics and maybe a sound clip of it on here. Im going to put 4" stainless steel straight cut tips from magnaflow on it.

 

good job, kinda hard to build a muffler from scratch???

 

it was pretty hard it took me10 hours

 

heres the pics:

[IMG]local://upfiles/3123/EC82A115CBD747B99A3B741CB2EDBE4F.jpg[/IMG]

[IMG]local://upfiles/3123/FCF995A3D44045CB8B61C051A90B200B.jpg[/IMG]

 

what do the insides look like? have a scetch?

 

heres a sketch of the inside. I learned alot about exhaust during this project. When i put on the 90 bends(not mandrel) it really quieted it down and got rid of backfires (it was too quiet.), then later when i put on the 4 inch tips itmade it almost as loud as it was without tailpipes.

If anyone tries making a muffler post on here how it goes.

[IMG]local://upfiles/3123/71E72ED95D774247B02AB2F5195A0917.jpg[/IMG]

 

looks pretty cool.. i always thought about making a muffler but figured if i ever did it would sound like crap or something, if i actually managed to make one.it looks pretty free flowing.. nice job. let us know if you do manage to get a sound clip of it.. im interestin in hearing it

 

Thats awesome, and its prolly better than a flowmaster