Gintani X-pipe with 4 resonators - to be changed for high flow cats

[Gena the Crocodile]

The car has ess-650 kit + Gintani X-pipe with 4 resonators.

Initially I paired Gintani X-pipe with 4 resonators with M perfomance rear section exhaust and the sound was way too loud with unpleasent drone and rasp, being not suitable for street driving.

I took off the M perfomance exhaust and replaced it with OEM rear section exhaust. The sound changed for better eliminating drone, becoming suitable for street driving but it is still a bit too rasp at mid and high revs. By the way, drone dissapeared completely.


I am now thinking of changing 2 front resonators of Gintani to high flow cats 100 cpsi.
I want to believe this will significantly reduce the sound making it quiet enough not to bother neighbours etc. I am not against achiving better sound losing up to 10-15 hp but not more.

Can the 100 cpsi HFC be purchased separately and integrated in the gintani x-pipe, which I have now?


Any suggestions or recomenndations?

Thanks in advance!

[MarinoC]

Originally Posted by Gena the Crocodile

The car has ess-650 kit + Gintani X-pipe with 4 resonators.

Initially I paired Gintani X-pipe with 4 resonators with M perfomance rear section exhaust and the sound was way too loud with unpleasent drone and rasp, being not suitable for street driving.

I took off the M perfomance exhaust and replaced it with OEM rear section exhaust. The sound changed for better eliminating drone, becoming suitable for street driving but it is still a bit too rasp at mid and high revs. By the way, drone dissapeared completely.


I am now thinking of changing 2 front resonators of Gintani to high flow cats 100 cpsi.
I want to believe this will significantly reduce the sound making it quiet enough not to bother neighbours etc. I am not against achiving better sound losing up to 10-15 hp but not more.

Can the 100 cpsi HFC be purchased separately and integrated in the gintani x-pipe, which I have now?


Any suggestions or recomenndations?

Thanks in advance!

hey sorry i dont have an answer for you. maybe you can help me tho. im actually thinking about getting the gintani x pipe with high flow cats, and i have the M performance exhaust. i dont plan on changing the exhaust, so im wondering now will it be too loud and have drone/rasp or will it be a nice aggressive sound? thanks for your help

[Gena the Crocodile]

Originally Posted by MarinoC

hey sorry i dont have an answer for you. maybe you can help me tho. im actually thinking about getting the gintani x pipe with high flow cats, and i have the M performance exhaust. i dont plan on changing the exhaust, so im wondering now will it be too loud and have drone/rasp or will it be a nice aggressive sound? thanks for your help

Are you supercharged?

[MarinoC]

Originally Posted by Gena the Crocodile

Are you supercharged?

not right now, iit will be n the future tho

[whats77inaname]

Why don't you look at replacing the rear with a Corsa? I have an MRF X-pipe that I catted w/100 CEL HJS cats and paired it with a UUC Corsa exhaust specifically b/c I wanted to keep the noise down.

Works splendidly. WOT it's loud AF, just cruising around, it's very tame. No drone or rasp, either....the perfect Jekyll and Hyde. And I went with this setup in anticipation of purchasing a s/c'er in the future, as well.

[asmazda]

Originally Posted by Gena the Crocodile

The car has ess-650 kit + Gintani X-pipe with 4 resonators.

I took off the M perfomance exhaust and replaced it with OEM rear section exhaust. The sound changed for better eliminating drone, becoming suitable for street driving but it is still a bit too rasp at mid and high revs.

Any suggestions or recomenndations?

I have a 200-cell HFC x-pipe with resonators that I had originally paired with the OEM exhaust. I don't know what catless sounds like, but I found the HFC x-pipe with OEM exhaust was too raspy for my taste. So I went with a Dinan exhaust and now the rasp is gone, but it is significantly louder than the OEM exhaust, especially at WOT.

So I guess point of my story is you will have to decide what tradeoff you want. Personally, if I had to do it all over again I wouldn't waste the money on an exhaust. Just the x-pipe paired with OEM exhaust and accept a little rasp.

BTW, generally speaking, the greater the # of cells of the HFC the quieter it will be.

[Gena the Crocodile]

Ok. I have already understood that to keep reasonably quiet at catless or HFC xpipe I should abondon the idea of keeping my m-perfomance exhaust.

It looks like the OEM rear section is a good compromise. The only question is:
HOW do I install the 100 HFC to the gintani catless x-pipe with 4 resonators?

Do I just delete the first pair of resonators and change them for 100 HFC?

[whats77inaname]

Originally Posted by Gena the Crocodile

Ok. I have already understood that to keep reasonably quiet at catless or HFC xpipe I should abondon the idea of keeping my m-perfomance exhaust.

It looks like the OEM rear section is a good compromise. The only question is:
HOW do I install the 100 HFC to the gintani catless x-pipe with 4 resonators?

Do I just delete the first pair of resonators and change them for 100 HFC?

Do you have a pic of the x-pipe?

[Gena the Crocodile]

Originally Posted by whats77inaname

Do you have a pic of the x-pipe?

Difficult to download it from ipad.

But it is a standard gintani catless x-pipe 4 resonators

[Jesus E90 M3]

Originally Posted by whats77inaname

Do you have a pic of the x-pipe?

I am interested to know!

[aus]

You might just want to add the cats to the mid section before the rear resonators.
I'd recommend 200cpi cats if the smell bothers you. 100cpi cats still stick a lot.
.

[Hujan]

It should be pretty straight forward, OP.

I would recommend 100 or 200 cpsi HJS cats, like whats77inaname used. The 100 will give you more power (or rob you of less, I guess) than the 200, but the 200 will smell less and quiet it down more.

The trick will be getting the cats with the correct reducers to fit the diameter of your exhaust pipes. It shouldn't be too tough. Once you have the cats in hand, any good exhaust shop should be able to help you out.

[whats77inaname]

Originally Posted by aus

I'd recommend 200cpi cats if the smell bothers you. 100cpi cats still stick a lot.

Originally Posted by Hujan

It should be pretty straight forward, OP.

I would recommend 100 or 200 cpsi HJS cats, like whats77inaname used. The 100 will give you more power (or rob you of less, I guess) than the 200, but the 200 will smell less.

I'm gonna have to say that I disagree. I've been running this setup (100 CPSI cats) for a bit now, have had several people in my car over the past couple years, and there has been literally no complaints of the smell, and my g/f is pretty sensitive (and vocal ) about that kind of thing. If you go this route, you're going to need a Corsa rear. If not, it will make A LOT of noise, like the "your-neighbors-will-be-thinking-about-vandalizing-your-car-because-it's-so-loud" kind .

[Jesus E90 M3]

Originally Posted by aus

You might just want to add the cats to the mid section before the rear resonators.
I'd recommend 200cpi cats if the smell bothers you. 100cpi cats still stick a lot.
.

Originally Posted by whats77inaname

I'm gonna have to say that I disagree. I've been running this setup (100 CPSI cats) for a bit now, have had several people in my car over the past couple years, and there has been literally no complaints of the smell, and my g/f is pretty sensitive (and vocal ) about that kind of thing. If you go this route, you're going to need a Corsa rear. If not, it will make A LOT of noise, like the "your-neighbors-will-be-thinking-about-vandalizing-your-car-because-it's-so-loud" kind .

i have Corsa with the Gintani X-pipe quad resonated, it sounds amazing but the rasp at normal driving kills it. i only need to minimize the rasp. i love the smell and dont mind power loss.

[aus]

Evolve has shown essentially no power loss with having 200cpi cats downstream where the stock 20cpi cats are. It should take out most of the rasp too.

[rich4life611]

Definitely interested in purchasing the xpipe if you choose to sell?

[miked7285]

Originally Posted by Gena the Crocodile

Ok. I have already understood that to keep reasonably quiet at catless or HFC xpipe I should abondon the idea of keeping my m-perfomance exhaust.

It looks like the OEM rear section is a good compromise. The only question is:
HOW do I install the 100 HFC to the gintani catless x-pipe with 4 resonators?

Do I just delete the first pair of resonators and change them for 100 HFC?

I just got the Gintani HFC's that directly replace the two front resonators. All bolt on. The difference isn't as large as I would have thought. It definitely sounds better, more refined, helped with the rasp, and the smell is gone. I'm happy with it, but thought it would be a tad more quiet.

BTW the Gintani's are 300 CEL cats.