rich1833

I was looking to improve the stock exhaust on my otherwise stock 1998 TA. I took a hack saw and cut off the stock muffler. It didn't sound bad at all but it lost a lot of get up and go. I then reset the computer thinking that might help but it didn't do much of anything. I know people go back and forth about back pressure so I just chalked it up to that. I then went to mod the muffler. I took a cutoff blade and made a large hole in the outer metal.





I cut a smaller hole into the inner metal plate.




There are two perforated tubes inside that the exhaust must go throw before leaving the tail pipe.



I used the cut off wheel and removed those.




They are about 50 small holes in one and about 70 in the other.


Welded it all back up and reinstalled.



The results are not as I had wanted. I noticed no extra power. I can hear a little bit of a louder exhaust but not much. It isn't worth the time in my opinion. Very little results.

ULTIMATEORANGESS

iTrader: (4)

just buy a cat back instead going through all that.

then get a nice set of LTs.

Fourth-Gen Man

LS325ci

iTrader: (3)

why not just fab up your own exhaust? i made a few and this time it will be true dual. pretty easy if you buy those prebend kits.

SH1ZN1T

iTrader: (16)

buy some powersticks from madhammer

RevGTO

iTrader: (12)

Yours is the second example I've seen where somebody has cut up the stock muffler. It's incredible how restrictive that thing is. I agree with those who posted above, get Magnaflow or Hooker and call it good. I do applaud your ingenuity, though!

Mr.z/28

iTrader: (8)

I just have a cat delete on my car, with a cutout and the stock exhaust.
Loud when I want to play just remove the cutout, quiet when I just wanna be well quiet, but still has a nice tone.

redtan

iTrader: (5)

Don't really know why you even expected anything? Mufflers don't gain any power whatsoever, and certainly not when you slightly modify them like what you did.

Only thing mufflers do is muffle sound, and without replacing it or literally cutting holes in it you're not going to notice much of a difference in sound. And certainly nothing power wise.

omarrakeen

iTrader: (2)

you still have the same pipes and the same flow. you could always chop that thing off and add a bullet thats a lot less work, sounds better and maybe add a little flow.

rich1833

Just trying something different. I really thought it would have made it louder. I ran it 2 days with no exhaust and liked the sound but the drone in the car wasn't what I wanted. I did have the exhaust pipe stopped under the car so if I ran it out the back it might not be a problem. I will someday like to put headers a nice y-pipe and a Spintech muffler.

"MAC"

iTrader: (1)

Run duals and dumps its the best sound ever!

99Bluz28

iTrader: (35)

Imo, cut both of the tail pipes off the factory muffler just a little bit closer then where you cut the inlet pipe off, the get yourself a Hooker Aero Chamber muffler #21729HKR and have it welded in, in place of you factory muffler. it'll have good flow and good sound!
http://www.summitracing.com/parts/hok-21729hkr

BTW, you actually made the flow worse by removing those two louvered pipes in the factory muffler.

omarrakeen

iTrader: (2)

my friend had a magnaflow bullet in the I pipe with the stock exhaust and no muffler and it sounded amazing, there was no drone and the tone was very nice. wasnt that loud either.