SoniX

umm, I am not entirely sure why removing emmissions would reduce your exhuast life by very much, I imagine most everyone on this forum has no cats, myself included, and I don't think I have heard of this happening before. Maybe if you are running so rich that there is unburnt fuel being sent into the exhuast, building up, then igniting, but that is a Massive tuning problem, not a normal backfiring problem. if you completely open up your exhuast (true dual, or the like) then you will most likely shoot flames out of your exhuast pipe, assuming your car is running rich (most 7's do, it is dialed in from the factory)

hayas-fc

i have gutted cats but i still dont shoot flames, i think you may need to have custom exaust. or at least i do.

man, i sure hope i hope i dont blow up my new HKS Dragons



keegun

Apex13B

........dick

Apex13B

i used 5 mm apex seals to fix my detonation problem..now its detonates..and seals dont crack :rant: :smirk:

ZenkiFc

I don't know about you guys but around here its hell illegal for anything to be shooting

out of your exhaust.



And being in the country where it gets dry in summer its just irresponsible to have something

like that on your car. Even parking an rx-7 on hot a hot dry front lawn can start a fire.



Spending money on something that will decrase the lifespan of your exhaust and not making any more

power or gaining more reliability as a result just seems like a waste of money for me if you own this

sort of vehicle.



If you go ahead with it, spend an extra $50 and get a fire extinguisher too.

Midnightdriver

the easy way is to remove your cats and use a test pipe where the cat was the richen you fuel little by little you dont want to do it to much it gets annoying...I got pulled over in San Francisco for that when I went there to get option videos at the japan center.

ZoomZoomH

mine shoots flames, saw it in person when it's on the dyno.



the previous owner did a straightpipe setup with only mufflers at the end, hence the flaming action



let's hope I don't blow up my muffler like th picture above

Erik

if you have an n/a...all you need is a race pipe (bonez perhaps) and an N1 catback...tons of flamage :bigthumg:

phinsup

I've never had cats in any of my rotary's and have never launched a fuggin muffler or the back of the car. fact of the matter is rotary's are hard on exhaust, are the harder without cats on exhaust? Probably a little, but you are talking about cutting 5,000 miles off the life of the muffler, not years. That muffler was going to blow no matter what, no cats may have made it happen a few days sooner, but either way that bitch needed mufflers.

vosko

i had stock mufflers and catback on my TII 99% of the time i owned it!!!! never blew one up like that. at one time had upgraded turbine etc. i shot some nice couple of foot flames too