If I swap out the current muffler I have on my car that is welded on And switch it for one that is a bolt-on, would it affect my car negatively in any way? I heard that the metal would be weakened because my current one is welded on. Any information would be greatly appreciated.

 

You mean cut out your stock one and add a flange to bolt on an aftermarket muffler? If so, it won't weaken anything if you weld the flanges for your pipe and new muffler correctly. I don't know what your Lancer setup looks like, but the stock Evo's are bolt on.

 

No flanges just pipe.

 

I don't really understand the question. You have an aftermarket muffler welded in place of the stock unit but you want a bolt-on muffler? I haven't seen the underside of the 08 lancer but if it's like the 02-06 you'd unbolt your current muffler as if it were an axleback and replace it.

 

IF your sitaution is that you have welded your muffler on to the main down pipe , then technically you should have it converted to bolted on separate sections, a straight pipe all the way thru will crack thru stresses, the pipe should be allowed to bend or flex when load is put thru the pipe.

for right now your ok, but you should change it when you can.

DId i understand correctly? Its ok, i will see you soon anyway for the dyno testing in the next few days or weaks, so I will be able to give it a good eye ball and see what ya got going on.

 

Sounds good evosoul And for ambystom01 I have no bolts or anything screwed into place. Old muffler cut off/ New muffler welded on to the pipe that the stock one came from. So if you look at it from underneath you wouldn't see any flanges, just pipe and muffler.

 

Where does the pipe end? Is it a complete system from the cat back?

 

The f*&#in guy that did it cut just behind the part you'd use to unbolt the stock muffler, and welded a custom bent pipe to the stock piping with the aftermarket muffler attached to the custom piping. So if you seen my stock muffler it would still have the bolts and flanges attached to it. Hopefully that gives you a better picture of what it looks like.

 

So you still have the option of unbolting the muffler?

 

NOPE I would have to cut-off the aftermarket one and have some one weld back the flanges and bolts, so I could use a bolt-on muffler. So basically right now I don't have ANY other options other than to cut and weld

 

Why not get a catback then?

 

I heard that our cars loose torque with a straight pipe cat-back, and if you know about the CVT's that is not an option considering we already don't have any to begin with. There is still a debate on what is considerd a cat-back for our vehicles due to use having a cat that's near the rear wheels of the car already which is axle-back.

 

You shouldn't lose or gain a substantial amount of power with just a catback.

 

I'd hope so because i want a cat-back not axle-back exhaust system. If the weather permits, I will take pics to give a better understanding of what I have underneath there.

 

if u don't gain or lose anything with a cat...y waste ur money on a catback?

i personally just came back from the muffler shop....I'm tryin to find schematics if our exhausts, I plan on getting rid of one of the cats and resonator and replacing the second cat with a highflow cat and getting rid of the precat wen the RRm headers are out...

I noe nothing about exhausts,,,so wateva i wrote above might make no sense at all....