Macius8

iTrader: (3)

the Amuse R1 Titan Euro Exhaust should be one of the lightest, only 18.48 lbs.
and it cheap too

TeamRX8

iTrader: (25)

$1,870 for a catback muffler is cheap ... ?

ddub

I was thinking the same thing...

TeamRX8

iTrader: (25)

JIC Ti is just as light and costs less ... very quiet too

Macius8

iTrader: (3)

lol should've put a smilie in there,
and ye the amuse is probably loud, friend of mine actually had an amuse exhaust on his s2000 and it was extremely loud, but it did sound incredible,
if i had the cash this is what id probably go for

dipatrx8

so Anyone knows the weight of rev8 and legamax??????

moeghs

I know this thread is old, but I am just going to throw this exhaust in there just in case somebody in the future might be searching for something similar.

exoticspeed r2 titan exhaust in their website it says 798$ for just the catback which is pretty cheap for a titanium exhaust

saumbaumrx8

I just bought my 2004 RX-8 GT. I am already buying a K&N short ram intake for it, but I don't know which exhaust would be the best one for my car. I keep hearing that HKS exhausts are the best, but does anyone else have a different opinion?

paulmasoner

iTrader: (1)

everyone will have a different opinion. Some are based on looks, some on cost, some on, sound, some on weight, some on size or flow, some on combinations of those factors. Most of those things are subjective and everyone will have their own opinion. Unless your looking to put something on purely for objective reasons with no regard whatsoever for how it looks, sounds, costs, etc - then no one here can make a decision for you.

At least you didnt start the 11 thousandth new thread for this. If you look here you'll see there are over 1,500 threads about exhausts... surely something in there will tell you what you want to know
https://www.rx8club.com/search.php?searchid=6868023

I wont even start on the K&N hot air ram...

Blacknightz

Very subjective to what u mean is the best exhaust... U want more power and save weight... go for single exhaust... If u want decent exhasut bang for buck, then try looking at the stick thread...

moeghs

any input on the exoticspeed r2 titan? I would really like to hear some feedback from a forum member in terms of weight..........please

Torotor

Who cares how light an exhaust is? Like 5-10 lbs would make any difference. (Not intended to sound like a douche)

bse50

I do...
Shed here, shed there... lose 200 pounds and tell me the difference

E-NA6CE

Autocrossers, anyone chasing a championship.... generally anyone who is serious about the overall performance of their vehicle and where they place in each race. Sure, some exhausts may only yield a 10-pound difference, but that's part of the whole picture. You start swapping out glass for polycarbonate and you've lost almost 100 pounds for $50 worth of polycarbonate. Slap lighter wheels and lighter tyres on it and you've removed about 30 pounds of unsprung weight, which is about 300 pounds worth of static weight. You'll also free up what little torque the RENESIS produces. *sigh* Sidetracked, my bad.

Every pound shed is that much less weight our anti-torque rotaries have to lug around. That alone is merit enough to warrant a lighter exhaust.

Torotor

Fair enough but we aren't talking unsprung wieght here or poly (which wouldn't even be street legal where I am). Different ballgame all together. I geuss I'm thinking that someone should be looking for the best exhaust total power-wise than lightest. Who cares if a Ti exhaust has five pounds over a single exit that may have a 1-2hp gain over it. I'm speaking hypothetical here and I'm not sure that combo would exist but there's probably a balance between lightest (and therefore "most gain") versus most "real" gain (heavy or not).

Again I'm not saying I'm right but maybe its something to look into.

paulmasoner

iTrader: (1)

your not going to get any "real gain" buying any off the shelf catback exhaust anyway

fuztupnz

iTrader: (4)

I don't know the exact weight, but it's not full titanium like others mentioned in this thread. Only the tips and silencers are titanium, the rest is stainless.

L337fpc

iTrader: (4)

i don't know how much my hks hipower weighs...but it is lighter than my old greddy sp2 and matched up with a race pipe (bhr or exoticspeed)...you do save a decent amount of weight. before i swapped my sp2 out i weighed 2865lbs w/o me in the car. I was weighed @ tech inspection at NJMP.

I'll be putting rpf1's on in the spring and getting the car reweighed. I'm confident i'll be under 2850.

moeghs

I also agree that 5-10lbs would make a difference for an auto-crosser or generally anyone who wants to loose weight on their car. Like me

Thanks for the feedback fuztupnz you were much more helpful than Torotor. (Not intended to sound like a douche)

Torotor

*sigh* Let me be more helpful then. Let's say for arguments sake that you have a choice between a Ti exhaust that weighs ten lbs less than an exhaust that has just 1 more hp than the Ti. Which would give you a better net gain?

Assume that you have an NA with a couple mods putting you around 200 rwhp. Not unreasonable. Let's also assume that your 8 is 3000 lbs (which mine happens to be on the dot). Now when you subtract the ten pounds (2990) and then take the hp (200) divide by the weight you will get a power to weight ratio of 0.06688. On the other hand if you add the 1 hp (201) and divide that from weight of the heavier exhaust (bringing the curb weight back up to 3000) that will give you a power to weight ratio of 0.067.

The higher the better right? I'm all for weight savings as it's not just about power to weight but as far as a power adding modification is concerned I'm of the opinion that weight isn't everything.

Not to mention you would probably save yourself a lot of coin.

bse50

The difference in power to weight ratio would be negligible. The lighter exhaust will also affect braking and handling though.
So yes, i'll take the lighter one!

E-NA6CE

Wouldn't you see/net the best gains by going with a simple single-exit exhaust and getting rid of the Y section? You'll drop weight (more-so if you choose titanium) over the OEM dual exit design plus still benefit from the ~1 HP increase. It seems like a win-win to me. Well, that's what my plan is, anyway, ha ha.

Blacknightz

good plan E-NA6CE...

Mawnee

I actually always pondered modifying Titanium C5 Z06 mufflers for the Rx8. You can buy a used set(two mufflers) for $300. They sound fantastic and flow just as good as any aftermarket. Guys with huge power C5s put these on to tame the sound of an extreme engine and longtubes.

My idea was to just use one side and do the center rotory shaped tip. I couldnt find anyone local that could weld titanium to do the tip. The rest would be easy, just cut off the over axle pipe and make an adapter to bolt up to the stock midpipe and use a band exhaust clamp.

Even figuring $200 for materials and welding costs....you could conceviably build two exhaust setups for under $250 each.

Beodude

iTrader: (3)

For me, keeping the balance of the exhaust is important. It would look weird to me only having one muffler in a dual bumper. I'd sacrifice a few pounds for that. I still like lightweight, but looks are important too....