Dump Pipes

[Bo0oSt]

Hey can anyone tell me how the JJR Split S/S dump pipes stack up against the lickes of the apexi gt spec single pipe....? im considering buying one but my mechanic keeps trying to convince me to buy this pipe made by a queensland mob called CS i think but it works out to be like 700 bux for the pipe including ceramic coating. Im just thinking what kind of advatage will the 700 pipe have over the 250 pipe and what kind of power difference would the result be. generally what kind of power increase would a dump pipe make to a car with a catback and nothing else?

[Blitz]

Your thinking of 'CES' in Queensland

I dare say there would be a negligible real world difference between the single bellmouth and twin pipe style front pipe on most typical street cars.

[Bo0oSt]

well thats what i thought and im not after a track car i just want a quick street car so what im getting at would be is the extra 450 you spend on the ces pipe going to give you like 10kw extra or would it just be like 5 if that

[GTR32GUS]

keep the standard dump pipe and get a EBC , it will get u a bigger power gain

[Az_StrYdeR]

Heres another to look at which I'm going to get.

http://bosimporting.com.au/index.php?page=...1&Itemid=27

[Simmo1985]

Just get the JJR. Save the left over money for other mods .. The difference would not be worth the price I wouldn't think.

[Blitz]

keep the standard dump pipe and get a EBC , it will get u a bigger power gain

Running higher boost through a factory restrictive dump pipe on an R33 GTS-T is not the greatest idea.

Bo0oSt has said the only mod his car has is a cat back system, so the best mod he can do right now is to complete the exhaust so he has a nice flowing full turbo back system, then think about upgrading his intercooler and raising the boost later on.

[Bo0oSt]

what kind of power gain would a dump give you anyway? isn't the stock pipe restrictive so wouldnt a large pipe allow more flow? That pipe from Bos importing why would that better than the JJR it looks pretty much the same would it just be the build quality ?

[Bo0oSt]

Running higher boost through a factory restrictive dump pipe on an R33 GTS-T is not the greatest idea.

Bo0oSt has said the only mod his car has is a cat back system, so the best mod he can do right now is to complete the exhaust so he has a nice flowing full turbo back system, then think about upgrading his intercooler and raising the boost later on.

yeh thats what i was thinking...finish the system then get a better panel filter and a fmic but even with the fmic the jjr or cooling pro kits are only like 350 when the hybrid kits are 600ish is that only because they have the hybrid stamp ? lol

[Az_StrYdeR]

the main reason im going with bos dump/front is the design.

The split is coming back in after the bend, which i think is a better.

The split coming on at the bend could create turbulance and upset the flow of exhaust gasses rather than making for smooth flow.

[cheez]

i got the flyn bellmouth front dump in 1. mate has jjr. we dynoed my car with the only difference being the dumos and found the flyn 1 to be 1-2kw better than the split. i was makin 178-180kw. my mates car did the same only he made 266 with jjr and 272 with flyn.

results speak loud and clear. in the top end of the power band, a dump front in 1 will give u better power figures.

[Bo0oSt]

ok so the common consensus would be for me to buy which the jjr split or something like an apexi gt spec single front pipe...budget is around 400 and the ces would be a waste as its not some 300rwkw tracky

Edited September 11, 2007 by Bo0oSt

[S T A R 3 3]

Hi guys. Sorry for the nube question!

Im at the stage where I want up the performance of my 33.

Currently have a 3" turbo back exhust. And EVENTUALLY in within 6 months, I'd like to have a bigger turbo for "a quick street car".

When would getting the dump pipes installed be beneficial/recommended?

[R338OY]

I'm in the same boat here. I have a stockish R33, with cat back exhaust and pod filter. I recently added a man. boost controller. I also want a quick street car, for the odd track day too, but i'll be adding a FMIC and dump soon. I'm probably goin for the JJR ($260) dump and FMIC ($350), both from Just Jap. They're cheap and can do well up to around 300rwkW (i'm advised).

I'd be stoked for a setup where it's economical around town, then i flick a few Power FC switches and i'm peaking 220rwkW. I think that's affordable and reasonable for a daily driver that you want to have fun with

[swanny180]

Same here also. Im leaning towards the JJR SS split dump/front. Best value for money IMO...

[eddieeeee-ro]

yeah i got a JJR cooler on my liner, gonna get the split dump/front aswell from them, so cheap 1-2kw wont make much difference. just means more money can goto the turbo upgrade

[BAMR33]

dan666 had issues with boost dropping off partially because of the split pipe, he then upgraded to bell mouth and fixed the boost issue. He also had hi-flowed turbo though.

[The Mafia]

the main reason im going with bos dump/front is the design.

The split is coming back in after the bend, which i think is a better.

The split coming on at the bend could create turbulance and upset the flow of exhaust gasses rather than making for smooth flow.

no offence, but I have been there and done that, and the split design is a load of shit. It will perform the same as a whole pipe. Just looks fancier.

The exhaust comes out in pulses, it doesn't "flow".

So there is no way you can upset the "flow" of gases, as its already upset when it leaves the engine!