Okay, I need some ideas here. I have a full titanium ARC ti exhaust, the problem is that it sits way to far in which creates a problem for the rear bumper (melting etc)

Now, if I unbolt it from the midpipe and push it backwards, thus pushing if further away from the rear bumper I get this:


That isn't exactly all the way back, it is about 2.75" of space. I need to fill this gap somehow, at first I thought about just getting like 5 or 6 exhausts flanges and welding them together but don't like that idea. Since the exhaust is titanium I can't just cut it and add piping, plus you need someone who specializes in titanium piping so that is just too much trouble. I am also getting a titanium midpipe so it wont work to extend the midpipe either. So I was hoping some of you may have another idea on how to fill this gap. Do I just get two flanges and weld like a 1.5" pipe inbetween them?

Thanks for any insight.
B

 

I'd try getting a couple flanges and a section of SS pipe and weld the flanges on there to make a spacer.

 

ive seen exhaust spacers before. i saw somone getting rid of them in the forsale section about a year ago

 

+1

 

yup, a spacer is probably the best bet. goodluck.

 

where does the Ti start? most of the piping looks like steel, i'd move the muffler before i'd move the whole exhaust backwards like that. If you're going to have to weld something anyway just add 2in in front of the muffler

 

make a shroud over the end of the bumper. they have those carbon fiber add ons which should prevent melting.

 

personally, i dislike the idea of cutting a titanium pipe if extension of the titanium pipe is unavailable. so here's a thought,

1. cut the original exhaust hangers and re-make/weld the hanger so the muffler hangs farther out

2. add a small independant straightpipe section with 2 flanges to fill that gap. have bolts welded onto the flanges of that extension so the nuts are tightened on the midpipe and exaust flange.that way you can always go back to other standard muffler with ease. and while you're at it, use a Apex-i ECV for one of the flange. they make a 3" version now.

http://www.apexi-usa.com/products/?id=5326

 

That what I am thinking about, don't really have a shop near me that could do that.

Any idea where to get one? I saw this one on ebay:

The guy wants $100 for it though and that is ridiculous. I am still waiting to hear back from him to see how thick it is and what the diameter is.

The whole exhaust is titanium, including the flange. So, looking at the picture, the flange/exhaust on the left is where the titanium exhaust starts. You can see the stock midpipe to the right.

Yah I know what your talking about, but just a big fan of how they look, besides the fact the exhausts looks weird recessed in.
Cutting and welding the hangars isnt really an option since they are titanium. I do like option 2, but I have no idea where I could get something like that made?

Thanks for everyones help and ideas!

 

just buy 2 flanges, 2 gaskets and a short section of the size pipe you need and make your own.

 

I know I can get the flanges and probably find someone to weld it for me, but where do I find 2" of 70mm pipe?

 

try mcmaster.com

 

so wait, in picture 1, the gap isnt there? because your pushing it together?

thats about where my HKS sits and my bumper seems to be ok. for what its worth I would look for the carbon fiber type peice that sits above the exhaust to try and prevent it from melting.

 

I don't know if it's an option for your tastes... BUT you could just purchase a bit of carbon fiber and put it on the bumper to protect it.

http://shop.jklre.com/products/fd-cf-bumperguard

 

if you can find a local mufflershop from the phone book, they all should be able to make it

 

I would think the short section as well. If you are going with a Ti midpipe as well, chances are it wouldn't be a custom length.

My question to you would be, are you going to try and move, or remake the hangers for the cat back? I know the piping is Titanium, but I'm pretty sure you could move/add to the stock hanger piping, in order to remove stress on the bushing.

If it were me, I'd want the addition to be incorporated into one of the pipes. You said FULL Ti exhaust, is that from the Turbo back, or just the cat-back? If it's turbo back, maybe that distance is made up in the system, and you'll only get that gap when mixing up parts?

 

Any decent exhaust shop can use a pipe expander for you in order to get something to the appropriate size

 

Looks like a pretty serious exhaust leak too, time for a new gasket

 

+1, use some silicon too. Let it set up for a few hours before you light it off, it will help with the seal.

I have made spacers in the past to solve this very problem and they work fine.

Also, based on my own experience, moving the tip out will help with the soot problem, but the bumper area will still get quite hot (due to radiant heat), especially with single wall exhaust tips. (Note that tips such as the RB are shielded and some, such as stock, are cooled as well; which really helps keep the bumper area cool.)