Basically I am curious as to the more technical, less tangible side of true duals...

It appears that dumps before the axle seem like a nice easy way to go, and is something that I plann on doing with my 94 formula, to freshen things up, and squeeze the most power out of the car as far as exhaust systems are concerned...

Assuming a fairly basic LT header, X-pipe, dual muffler [bullet] setup, and the turndowns, are there any downfalls to this system besides possibly having serious state inspection problems????

I am trying to get at things such as heat being so close to rear end, seals, gas lines, driveshaft, etc...Catbacks seem nice because of course all of those potent exhaust gases are let out closer to fresh air rather than underneath the car.

With that in mind, besides the obvious increased interior resonance, should someone be worried, for example of exhaust inside the car or heat burning things up, namely at idle as well...?

Finally, what about discoloration, or carbon buildup under the car?? That is more of a looks issue, but you never know the effects it may have of being collected on the metal undercarriage, rather than dissipated into the air behind the car..

Thanks guys,
BRIAN

 

fyi, BMR has a new panhard rod out that will allow the use of up to dual 3" pipes over the axle!!

check out there website www.bmrfabrication.com

 

ah thats a nice piece...what about things more along the lines of hazards due to heat, ok to leave the dumps remain in front of the axle, anyone?!

 

That is a great piece! Although my 2.5" system clears the stock
setup, it's really tight. Nice to know I have more options.

http://www.bfranker.badz28.com/misc/td06.jpg

 

assuming DUMPS still....what are any potential hazards as stated above?? anybody experience any problems beyond the typical "loud interior noise"...?

 

Oops, got all excited about the BMR piece and did
not even answer the question.

I personally do not like dumps at the rear axle. First,
it's a red flag that the exhaust system is modified,
second, it's loud unless you run really quiet mufflers,
and third, you end up smelling exhaust all the time
when you are in traffic. The smell is not so bad if you
are running cats, but if you have removed them then
it's a total gas out.

An additional point to consider is that the fuel lines on
our cars run along the drivers side and the stock exhaust
runs along the passenger side. This was done for a
reason. It's not good to mix exhaust pipes and fuel
lines.

If I had to run exhaust on the driver side I would relocte
the fuel lines "as needed" to keep things safe.