Hes saying larger diameter pipes will be cooler than smaller diameter. This is true, but only to an extent. Obviously if you have your turbo rotary pushing all of its hot exhaust gases through a 2" pipe you will have all that heat in a smaller area rather than if you had a 4" pipe the heat has room to spread out and cool off somewhat.

BUT like I said this is only marginal. And aluminum is a horrible exhaust material on a turbo rotary for all the reasons stated.

I'm still trying to figure out this boxy muffler design though...makes no sense.

 

Magnaflow 7" 14716 mufflers to 4" tips (I can find them if needed).

I honestly thought that replicating this exhaust on a rotary FC wouldn't be bad, it's nice too ricey, and its straight through.

 

I chose RB. For now it's only mufflers, but in december mani, pre-silencer and Y-pipe will be replaced with RB as well:

 

Here is a picture of mine the Mufflers are DP free flows, Mind Train presilencer & RB road race header.

 

^ sweeeet!

 

look mean

 

Nope. I've never made an exhaust out of cardboard and KY either. One of the benefots of not being retarded is that I don't waste time and money on things that I know are completely stupid.

 

 

Can you please post a video of your car idling and a little WOT with your Hushpowers.

 

^x2 looking into these muffler as well

 

camara took a crap. just know i have had many people tell me how good they sound at idle. some of those people being rotary haters. and they sound even better under hard acceleration...

 

someone on the forum asked why i have it looks like jet engines... just the way it is... "Maxspeed" brand... came with the car.

 

More info on the DP mufflers please.

Had a catback with similar tips on my '7 when I bought it in 1996. Probably a different brand, but never found out what it was. I loved those tips.

 

Here is my Greddy power extreme catback. RB 3"downpipe and 3" magnaflow midpipe.
By the way, on the drivers side exhaust, it was moving just enough due to stretched donut hanger on a 45 mile trip recently that it was touching the rear bumper and melted it. It was 40 degrees outside and it was all highway driving. So even with the cooling effect of cold temps and airflow at 75mph it was still hot enough to melt my bumper.

 

 

By nd_aussie at 2009-12-01 greddy exhaust. racing beat downpipe and 3inch pipes all the way back

 

i ended up ordering the apexi gt-spec wooohoo

 

I has this exhaust. Love it. Nice and deep.... I'll post pics tomorrow if I remember.
Really amusing when it arrives in the post, since it's all one piece. Comes in one big *** box

 

yes please post pics. i cant wait till it arrives

 

I'm interested in this muffler too. Could you post any vids if possible? I'm looking for a turndown muffler for my soon to be turbo fb. How long have you had it? Holding up good to rotary heat?

 

even if the aluminum does hold up it is going to look like total ***

box mufflers!

 

why can't you use aluminum for exhaust, but many cars have an aluminum engine block? Maybe because the exhaust doesn't have a cooling system like the engine does? and aluminum blocks usually have cast iron cylinder walls tho right? Anyways, could you coat the aluminum exhaust in something to increase its heat resistance? Ceramic coating? I guess it could get expensive...

Also, I've read that titanium loses a lot of its strength when it gets hot, then again idk the specifics so I'd have to look that up. I don't get the box mufflers either?

the exhaust does look very nice though.

 

pics of the gt spec. One thing is the can is rather large, hangs down.
Sorry the pics aren't the best, but it's what I got.

 

Racing Beat, REV T2

 

mmm that is just sooo great