Center Exhaust?
 

I was thinking of doing a center exhaust set up that would have a triangle tip coming out of the rotor symbol in the back bumper. Have any of you seen something like this? I have searched and did not find any results. It looks pretty easy to do. What issues do you think I would have doing this?

mock up
https://www.rx8club.com/showthread.p...center+exhaust

It's been done by a few members; I'd be wary of melting the black portion of the bumper. You'll have to cut a good distance around to prevent this from happening and that in itself may detach from the aesthetic look you're going for.

Thanks for the links and inputs. The melting issue is my major concern and then the amount of surrounding material needed to be removed and the sagging effect afterwards. Thanks again

You could use something like gold reflector/heat resistors (I've seen this a couple places like in the engine bay of the Mclaren) but maybe that would keep it from melting the plastic.

KNIGHTSPORT & RACING BEAT is your friend & yes its been done

i've been thinking about doing this too.
my plan was to get the kenstyle rear and doing a RE Amemiya/greddy rx7 thing with the exaust

exhaust setuphttp://www.youtube.com/watch?v=kd1lhW0UnE8
and do that through the section below the license plate here

^copy cat (same here)

You can forget your triangle tip idea, because the tip will be tiny. :lol2: You'd have to cut out the triangle completely, so you could have an exhaust tip sticking out far enough, so it won't melt the plastic.

http://img109.imageshack.us/img109/2135/center1.jpg

http://img109.imageshack.us/img109/3232/center6.jpg

What exhaust is this? This is exactly what I wanted to do. The tip size would be an issue if it was the triangle, but this looks good!

Well I did it... Works great and only took about 2 hours and cut a bunch of weight. Sounds great and cured the high rpm stumbling issue I had.

video??
let me hear your sound man.

idk i think it would only look right if it fit on the triangle part

not my cup of tea, but at least the contours of the bumper make it look like it was made for that area, and it looks pretty good too.

I only cut out the triangle for the exhaust hole and the oval Borla tip I used fit right in. It all fits pretty clean and was a no brain mod. I agree a rotary shape tip would look good. I'll post video and sound clip and better pics soon.

Thanks, it is different and that is what I was going for. It is hit or miss with friends of mine whether they like it or not. The factory cut out in the bumper helps it have a finished look. I still need to mesh the stock openings.

Pics of the one we did in 04 with the rotor tip

It's ,a few posts down

https://www.rx8club.com/rx-8-multimedia-photo-gallery-6/some-pics-caage-we-built-rx8-37986/

Looks nasty dude, "race car" or not.

https://www.rx8club.com/attachment.p...2&d=1093978648

It was finished up nicely back in 04 I just lost the pics Of it done

Never knew there was a thread about this...lol

Anyway, center exhaust looks stupid to me...just my .02 cents.

I want that muffler !

Even with the kenstype I think it'll look stupid. Unless you get rid of the exit ports on any bumper it'll look like it was just stuck in there. That's why that rx7 with it looks so good, it was made for that exhaust

I wonder.. Mabye take off the bottom half (unpainted part) of the rear bumper. Just cut it completely off... the more I think about it the more I think it wouldn't look too bad if done properly. Any one got a spare rear bumper? doesn't have to look good and bottom can be torn to shreads lol.

Eh not my cup of tea, center exhaust on the LFA though....

center exhaust only looks good when they're dual outlets

I'm about to take a whack at making a center look good. I'll post pix when I'm done. will be awhile so i might be poking a dead thread with a stick of pictures. it'll be for my turbo setup to get rid of bends and just go straight out

any luck with it yet? i'm about to start to make rotor shape hole with straight exhaust sticking through it with diffusers on each side. i'm also throwing out the bottom part of the bumper I also thought of taking exhaust pipe on either side of the license plate, but it would just look way wrong. post some pictures if you're close, or not. i think we're probably thinking the similar design.

Yeah I'm not really a fan for a few reasons:
1) empty shrouds
2) no car has ever pulled off a single center exhaust
3) melting the shit out of your bumper

Maybe with a bumper that didnt have shrouds (cant think of any off the top of my head) and a dual outlet center it would look good.

Anyway, center exhaust looks stupid to me...just my .02 cents.[/QUOTE]

Im with this guy on the matter

http://farm7.staticflickr.com/6129/5...47929891a3.jpg

http://farm7.staticflickr.com/6147/5...522a9197c8.jpg

I did it, didn't like it

I have center exhaust on my car and I love the way it sounds and how it looks, but I fabricated everything myself.

pics?

I figured I would post these. I had full 4" from turbo back splitting into two 4" pipes in the rear. I thought it was a bit too loud once I swapped engines to a 13B-RE and always had interest in a center exit exhaust so I worked this up. It sounds great and its quieter and I can't feel any noticeable power loss from the original 4" split.

Cheers!

Attachment 225481

Attachment 225482

Attachment 225483

Attachment 225484

Attachment 225485

Attachment 225486

Probably the best attempt yet. Still not liking it, may be it does not suit the RX8 based on the stock bumper.

Perhaps a custom designed bumper with three outlets to make a triangle will work.

this is all i see now:

https://stwot.motortrend.com/files/2.../12016521.jpeg

Looks terrible, but if you like it thats all that matters.

As for the bumper, the entire rear section is getting changed, this photo was minutes after finishing the exhaust and I had done nothing to make it cohesive with the rest of the car. I have every intention of changing it to match.

Either way I appreciate the input from everyone :)

I will probably end up modifying the rear to something similar to either of these two pictures:

http://lunar.thegamez.net/car/2011-c...m-1280x850.jpg

or

http://0.tqn.com/d/cars/1/0/8/X/2/10evora_rearlt.jpg

Cheers!

best one I think I've seen
any update?

I may have something for you guys soon
depending on how the resonator fits I'll either do this or have the exhaust coming from in front of the rear wheel
straight pipe was WAY too loud btw :)

My turn:

https://cimg9.ibsrv.net/gimg/www.rx8...2d225ce287.jpg
https://cimg5.ibsrv.net/gimg/www.rx8...861e91190b.jpg

Find more info out on my blog: https://www.franeke.com/2020/10/cust...haust.html?m=1

And quick videos for the curious:

• You Tube
• You Tube

Also, I modified my OE muffler to also have a center exit...🙌

I’ve seen an actuated valve added to the OE muffler center point to dump exhaust out directly that way on demand too. It’s really more of a noise generator than actual performance enhancer.

Yours looks cool though. 😎
.

So far the header wrap and thermal tape is holding very strong. My previous setup was bare metal on the plastic and it shockingly didn't deform anything (ran that setup for ~5 years now).

Funny enough, after uninstalling my rear sway bar for autox - I found my aged tanabe coil overs are more streetable without the bar. But I actively avoid as many man/pot holes as humanly possible, so I'm sure that adds up.

Thanks Team :ylsuper:

actually I misunderstood how it’s configured and retracted most of that.

can you share what you have done to oem muffler to create center exit?

in the first picture above you can see the aftermarket muffler going straight to it. Looks like a Spintech or Flowmaster chamber/deflector type without packing.

or rather just click on his blog link, it’s a spintech

looks like he had an open version previously similar to what you were thinking, or it would probably sound the same; loud

what is exhaust set up on your car?