NorCal90

Hey I've been reading lots of posts about the various exhaust systems for the FC and I started wondering whether a single or dual set-up would be best for power and volume. I don't want crazy loud exhaust. Also post comments on what the best system is. Like RB or Borla or whatever. Sound clips would be awesome too.

Attila the Fun

iTrader: (1)

In it's 2-rotor days, the RXX-7 had a Borla catback. Performance was good. From outside the car, the sound is awesome. Received a lot of compliments on it. Running between turns 9 and 10 at Summit Point, the hills reflected the sound back to me. It sounded like two bass trombones pulling up their slides. That's real music.

However, inside the car the sound level was physically painful. (Not exagerrating.) I ended up putting a layer of Dynamat under the the carpetting in the entire passenger compartment. It was still loud, but not painful.

Relisys190

iTrader: (4)

I've used Borla catbacks in combo with a RB header for nearly 2 years.

No complaints and it sounds great too.

NorCal90

What about running single exhaust ? Is that louder than a dual set-up and which one flows better?

Falcoms

single is louder, yes, but gives more performance due to the lack of interference of the split in the y-pipe (i.e. the single flows better)

classicauto

iTrader: (3)

i disagree with that Falcoms - dual would flow better. however if you are comparing a 3" full single to say 1.5" duals it would be close however the dyno charts ive seen between catbacks on a stock setup to full dual with H-pipe dont lie

1987RX7guy

iTrader: (3)

IF <---- Pay attention to that part, you are BUYING an exhaust from a comercial exhaust producer e.i. Borla, Racing Beat, Apex'i, Greddy your best bet is to purchase what Racing Beat calls their "road race"(read: true dual) exhaust. I know plenty of people will come on here and start bleeding from their pu$$Y about how a "tuned" collected dual/single will do better because of scavenging from the collector. Well guess what? I don't give a $hIt becuase I haven't seen any ad's for "tuned" single or "tuned" dual exhaust from ANY company.


Secondly, IF ANY ONE company was producing a "tuned" exhaust there is no guarantee it would be the best overall exhaust. Because just like all the champions of the Tuned exhaust say "a tuned exhaust is
tuned' for a specific RPM range" It would be great if that RPM range encompased our whole tach but I doubt any tuned exhaust will work for the 4-6k rpms that we all drive at. If it will please by all means show us the facts behind it.


Single exhausts: they are lighter yes, they are stupid loud...yes, will they get you noise violation tickets? maybe. Will they make people wonder if your other muffler fell off...likely.

snub disphenoid

Remember A = pi x r^2. A 3" circle has a greater surface area than two 1.5" circles.

KompressorLOgic

iTrader: (6)

heres the best setup!!!

RB header 3" catco high flow cat, then 3" cork sport single n1 cat back,

but you cut part of the cat back apart and weld another n1 in so its 2 n1 "inline".
then you tell people u have duel mufflers and they look at the back and are like no its only on 1 side?, then ur like look UNDER! and there like WTF 2 mufflers in a row?? and its still loud as **** lol.

NorCal90

My orignal plan was Bonez race pipe (the one with the resonator) to Borla cat-back but then i stated reading about singles and started wondering but it sounds like my first plan was pretty good. Am I right that it wouldn't be stupid loud and still flow nicely?

7th Heaven

the best exhaust setup for a second gen N/A is the racing beat true dual system - bar none.

no real point in having a dual cat-back if you header and midpipe is one pipe. it just causes more weight and the exhaust flow splits. no real performance gains there. however if you have a true dual headers and midpipe, you will see much better performance.

if you're using it as a daily driver and don't wan't it too loud, then leaving the stock exhaust manifold and putting on a bonez race pipe and your choice of cat-back will be fine, noise wise, but you won't see a much difference in performance.

if you're going for more power, get aftermarket headers, a midpipe, and a good catback (apexi n1 single, corksport, greddy, etc). if you're going all out, nothing beats the racing beat true dual system, and that's the f*cking truth! :-)

p.s. my setup is crazy loud but after 5krpm, the car is on its ultimate high :-D

NorCal90

Anyone have sound clips of their Borla exhaust?

KompressorLOgic

iTrader: (6)

the complete duel setup you are talking about is called the RB "road race" exhaust system? right?

now reguardless you MUST GET A HEADER!! get rid of that crapy heat block exhaust manifold!!!

rb header with the rb" presilencer" and then some type of duel exhaust with real mufflers ( not fart cans)that flow well is prolly the best for keeping noise in check and getting good performance.

cause fart can mufflers dont really help much at all. even 2 of them in a row! lol

NorCal90

I didn't see a Y-pipe in the pictures of the Borla cat-back so does this mean it doesn't cme with one or no?

totallimmortal

currently i run 2.5 inch pipe from the stock header to rb catback, it sounds wonderful and the power gain was amazing (probably mostly due to not having cats) but soon i'm goinf to cut the rb section after the y pipe and run true dual off a rb header that combo should be killer i think