--MAstermind--

anyone have a dyno sheet of true gains from the Apexi duals, the RB dual (RB claims 59hp on an 87 T2 was that stock?) and the JIC titanium... i dont care about being quiet either so i mean with sound aside....which will post the most truest gains ?

leftshoo

I would like to know this also, so if anyone knows dont hold back the info =D. Thanks

FC3S_nataku

iTrader: (3)

from what i know the power gains on the t2 is from the fact that the exhaust is more free flowing. this will up the boost so you will need a FCD. but yeah i forgot how much the boost will spike up to.

--MAstermind--

i c they claim 60hp....(roughly.....so 182+60 = 242...or 241 ish HP) without a boostcontroler standalone or any other mods(besides the FCD).....how true is this could anyone provide a dyno sheet....with a STOCK s4 T2 and this FUll system cuz my target was 250...and it seems like...all i would need is this exahust and a FMIC, maybe a better manifold just to help flow....so i mean how true is this theory? and say i get the un orthodox pullies that claim 12hp gains minimum it seems like 280+ is STUPID easy without standalone and crazy mods..


my theory of gettomg CLOSE to 300 on stock turbos and ecu
(im adding up the claimed gain FROM reputable companies please dont destroy me with flames just wondering how possible this may be in a real world senario)

RB full dual exhaust (59 calimed by RB)
FMIC- (10hp im shooting REALLY LOW i belive just to be on safe side.)
unorthodox power pullies(12-16hp)
K&N filtercharger system(appearantly ive seen claims of up to 10ish)
FCD(needed for the above mods)
blowoffvalve (for efficiantcy)
defi boostguage( for more accuracy than stock)
ported wastegate on stock s5 turbo on an s4 T2
higher flow injecter nessary at this point or would stock type work as well...
with a setup like taht....what say you PROS to true power estimates...
it seems on paper (and i know real world testing will always differ)
in order and im lowballin the figures...
182+45+10+12+10 = 260...thats without leaving the stock ECU....

with a stand alone what kinda number do you guys think you could pull then...tuning and on the stock turbos

lnlycrpr

if your just looking for power, why dont you save A LOT of money and get a 3" exhuast from SSautochrome? it'll save you around $200. it's stainless, and fits/works great. thats what i have. it'll give you the same amount of power as any other system and it'll save you money. you could use that saved money for your other mods.

KompressorLOgic

iTrader: (6)

you will need fuel injectors if your boosting over 10 psi, which you will need to to get that much power..... id recomend the rtek 1.7 ecu chip -125 dollars, then it uses two 720cc injectors, you need a fuel pump upgrade also.. then you have enuf fuel for what ever hp the stock turbo can dish out.

1987RX7guy

iTrader: (3)

Those extra 200 dollars will get him a non-gaudy stock looking exhaust that will keep cops and ricers away from you. RB also sounds only moderately louder instead of stupidly buzzy like SSautocrap, Corksplat, and the rest of the cheapo exhausts.

RandomHero

iTrader: (2)

A buddy of mine made 300 w/stock turbo and ecu. I believe he had an fcd, emanage, and a front mount, and full 3in. exhaust.

lnlycrpr

$300- SSautochrome

$789- Racing Beat

if you need to spend $489 for a little stamp that says Racing Beat then by all means... go ahead. they all do the exact same thing only with different logos. if your that worried about sound, Corksport, Apexi, SSautchrome come with silencers that do a very good job. there was not a big difference in sound between the Apexi and the SSautocrome.

guady exhausts cater to some more than others, beauty is in the eye of the beholder.

any exhaust is going to be loud, any exhaust is going to attract the police, hell any modified car will attract the police. sooo in that case... dont lower your car, dont change the rims, dont tint the windows, dont upgrade your brakes. i honestly think cops are the last thing on his mind right now.

RB is great company, but I and many other would rather not spend that much money on an exhaust that can be found for a much better price. SSautocrap as you like to call it, has done great for me and many others on this forum. i'd say peoples opinions will lead me to buy their product rather than a $489 stamp.

1987RX7guy

iTrader: (3)

You're smoking some good crack, pass the pipe.

lnlycrpr

do explain...

1987RX7guy

iTrader: (3)

If you've ever had an RB exhaust and had Apex'i or any other fart can exhaust you know why RB costs more and how it IS better than anything else on the market for a street car.

If all he wants is power then a straight 3" pipe from the turbo to the tip is what he REALLY wants.

I know a lot of people and have seen a lot of threads on how they're now selling their cheapo/ghetto exhausts for something quieter, guess why because cheap exhausts have little to no R&D time spent on actually quieting the tone down.

The 3" turbo back from RB WITHOUT a Y or MUFFLERS will outclass any cheap exhaust as far as sound suppression, add in the two mufflers and you have world class power/sound. But you can't expect to NOT pay for it.

lnlycrpr

^^^thats my main point^^^ that can be found for $300 not $789

but in all honesty, your right about the rest... touchee my friend, touchee

1987RX7guy

iTrader: (3)

Edit: I've got first hand experience with N1 dual and RB exhausts. I got a set of N1's on the second car(just temp usage!) and RB mufflers on the true duals for my GTU. Coupled with RB header/silencer the N1's sound "ok" but I still wouldn't pay what the N1's cost.

Jager

iTrader: (10)

Sometime I think about my SE and about my purchases so far. I was considering going with a RB Header/ Bonez High-flow, and a Borla. I'm sure it'll sound better, but the best bang for the buck. I can always upgrade later too.

eriksseven

iTrader: (6)

I've said it once and I'll say it again.

In terms of sound and performance; Apexi GT series > Racing Beat

The only category RB "wins" in, (IMO) is looks... But that's what you get when you pay $780 plus shipping. Granted, the Apexi GT series exhaust is $600 (or something) for the cat-back, it still owns RB.

1987RX7guy

iTrader: (3)

haha, hook up a Db meter and we'll see who wins.

RETed

How the hell you compare a FULL EXHAUST (RB) with a CAT-BACK (A'PEXi)???


-Ted

eriksseven

iTrader: (6)

haha, lol... I just did.

I know, it's a controversial topic, lol... But an opinion is an opinion.

Oh, and 87rx7guy, are you saying that the RB system is quieter? When I bought my GT series exhaust I got a chance to hear BOTH the Racing Beat and the Apexi exhuast right next to each-other, one after the next. They were actually very similar in quietness. Granted the RB is 'buzzier', wheras the GT series was a lot deeper and better sounding...

I'm afraid that the old "cat-back vs. turbo-back" doesn't really stand up IF you're attempting to defend the RB. If JUST the cat-back sounds better then the FULL, wow, it must be SOME cat-back, lol.

"Just imagine how good a FULL GT spec exhaust would sound" lol.

I've got the frikkin' basic SS DP/MP that Corksport sells. That doesn't do ANYTHING for sound quality/quietness. That means that all of the serious ownage comes solely from the pimpness of the cat-back...

Kingsfan

iTrader: (12)

i thought this topic was about power gains?

RETed

Yeah, really...

Now that the A'PEXi GT cat-back has been exposed to not make as much power, the supporters are going to argue it sounds better???

Go figure...

If the RB full 3" exhaust sounds "buzzier" to you, there is something seriously wrong here...


-Ted

leftshoo

Have we decided what has the best "true" powergains? I do not mind spending an extra 489 bucks if the RB logo comes with more power. =D

Brian

eriksseven

iTrader: (6)

How does it make less power? (who exposed it?)

The Apexi GT series cat-back has 80mm+ piping.

Racing Beat's cat-back is 60mm...

My "wild guess" is that The significantly wider diameter piping of the Apexi system would flow better and therefore be able to support (and create) more power in comparison to the Racing Beat...

lol, sorry for "ruffling your feathers" by commenting on how the RB exhaust sounded... You'd know what I was talking about if you were able to hear them both at the same time.

-hey, it's all in fun.

If I had the money for the RB system, I would've bought it. I just got a great deal on the GT exhaust for $300. Interestingly enough, the guy who I bought it from had Racing Beat exhaust on his car. I got to hear both right after each-other, his car with RB, and my car with it's new GT series...

I THOUGHT that the GT series was going to sound heinous, but I was very suprised when I started it for the first time and I could barely hear it.

IMO the Apexi system sounds better... Big deal.

ON TOPIC: Any full, straight through 80mm exhaust is going to flow more than the Racing beat which tapers down to 60mm (or 2.375")

The reason why the RB system is typically "the way to go" is because of the thickness of the SS, the quality of welds, the overall sound created by the pre-silencer and the mufflers and the look of the system installed on a car.

bigdv519

iTrader: (3)

I read the claim of 59 hp too. I was amazed that my stock TII would be putting out over 220hp with the RB TII exhaust and FCD. Well mine didn't.

I would assume that the increase in power from the exhaust would rely more on the condition of the stock wastegate spring. Even after the RB system, I switched to a straight 3" pipe (after the RB downpipe), to a side dump. Boost went from 4lbs with stock exhaust, to 6lbs with the RB system, to 6lbs with the straight 3".

My conclusion.

The stock exhaust is crap. (Everybody knows that)

The RB exhaust was very freeflowing and looked great, while rather heavy.

My RB downpipe mated to a straight 3" pipe, to a side dump performed just as well as the RB, cut my cost, and my total vehicle weight. Really loud though!!!

Since you don't mind the noise, I say go with the RB 3" downpipe, then some 3" piping, ending with whatever muffler you chose.

RETed

Dude, why do you keep referencing it as a "Racing Beat's cat-back"???
The original poster mentioned "59hp" gain; which one of Racing Beat's cat-back system produce 59hp gain?!?!?
The only one I know of is the FULL 3" EXHAUST SYSTEM.
And sorry, 3" <> 60mm; 3" = 76mm.

Oh, BTW, you conveniently forgotten to mention the A'PEXi exhaust (ALL of the N1's, and not just the GT-series) start with a 65mm flange...


-Ted