my new exhuast idea

[mikeresin]

ok well as some of you might know i love loud exhuast. the louder the better. currently i have a 40 series non-delta flow on with no tail pipe. it just dumps right out of the muffler. i am thinking about haveing a cat-bypass pipe made. but im tryin to think of how to keep the backpressure. any suggestions?
a friend of mine brought up an interesting idea.... to put a 18" glasspack infront of the flowmaster so that the exhuast exits the flowmaster but the glasspack helas keep the pressure. i have no clue what that would sound like. ive never heard both on a car. what do you guys think?

 

[aldive]

Bypassing the cat is illegal, period.

Further, the way you state your exhaust is noe is dangerous; CO is a distinct posibility.

 

[mikeresin]

im aware its illegal. and im ok with that.

 

[yob_yeknom]

As for the way your exhaust exits now, illegal you may be able to live with, but the possible CO poisoning you might not be able to live with. With the exhaust dumping out right after the muffler, CO is being able to enter the passenger compartment. Drive around long enough, and it just might kill you. Add some pipe to get the exit at the rear. Since it's behind the muffler, it's not gonna hurt performance, but could mean the difference between life and death for you or your passengers.

As for bypassing the cat, the simple answer is don't. If you want to keep the backpressure, keep the cat. Bypassing it then adding another muffler to make up for the loss of back pressure defeats the purpose of bypassing it in the first place. You need that backpressure, as the 4.0 is built for torque not horespower. Also, the sound from coming out of the cat is louder than it would be from coming out of a glasspack.

Just my .02 on the subject.

 

[Kontrol-Trak]

Yeah, might as well as drive around with no exhaust. Would that be loud enough for ya?

 

[Alec]

If running no exhaust didn't help me with my supercharger (tried it for a day just for kicks), it won't help you out. Just keep the stock cats and the flowie. Oh, and add a tailpipe. A 2.5" mandrel or non-mandrel will not restrict at all.

 

[jsdean]

also, right now, with the cat, the CO may not be a problem, b/c the cat removes most of it (that's kinda the point) but if you remove the cat, all the "bad" stuff that it takes out will be being released, not just to the atmosphere, but into the passenger compartment, this is VERY dangerous, please don't end up with a Darwin award.

 

[mikeresin]

yeh ive been thinking about it and i dont think im going to remove the cat. not becuase of CO but just becuase its money i dont need to spend and if i removed the cats i would have to connect my exhuast tips. wich i dont feel like doing. the way my exhuast is right now if fine. i dont smell exhuast inside the car. although sometimes you dont smell it, but i dont think its doing any harm as it is right now. and if i added a tailpipe i would get much less of a loud sound. i wouldnt want it any quieter then it is.

 

[ok89]

put a CO detector in your X.