Custom Exhaust or Greddy...?

[AznVirus]

what do you think would be better? getting a dual dtm exhaust with custom 2 1/4 inch piping or just get a Greddy MX? would i gain more hp with the Greddy? the greddy is pretty expensive and i want to know if i will see the difference between the greddy and custom.

[b-b00gie]

A muffler shop cannot make the same quality piping that you would get with the Greddy cat back.


At least judging by the P11 setup I have from them. I havent seen a better cat back system.


But I'm not sure if the MX (for the P10) gets the same quality as the newer EVO line (for the P11)

[G20-KIWI]

Dunno how it is with other countries but I have always had my
exhaust systems done by exhaust shops. Greddy is just a name
any exhaust guy with experience can make you a good system.
Just go for a stainless muffler with good flow and aluminised/painted
mild steel tubing. Go mandrel bent if you want better flow but
the restriction is minimal. I agree that sometimes it is easier and
prettier to buy a system from Greddy due to the amount of idiots
that butcher exhaust jobs but I know a few people that I trust to
do it for me.
Custom mandrel bent piping is just as good as Greddy it depends
who does it though.

[P10DET]

Originally posted by b-b00gie
A muffler shop cannot make the same quality piping that you would get with the Greddy cat back.

That depends. If you can find someone who does mandrel bends they can. That is pretty rare though and takes a lot of digging. Even then you might not find someone.

Certainly a crush bent exhaust (what 99.9% of muffler shops do) is not as good as the GReddy.

[b-b00gie]

I'm not speaking only of the bending technique


The quality of the finish (at least on the newer Greddy systems; I have the EVO) is top notch.


It looks thicker and has a beautiful textured ceramic coating which appears as if it will NEVER rust or rot.

I cannot say the same for "home made" mandrel bent piping which usually lasts only a few months before it looks gross


Anyone who has the EVO system can back me up I'm sure...


Again.. I cant speak for the MX piping for the P10 as I have never seen it first hand..



I wish this picture was more close up (please note the P11 system is only 2 pieces not 3)

[AznVirus]

mandrel bends and crush bends arent that much apart are they? i mean the crush bends cant restrict that much air. it wouldnt lose hp would it?

[b-b00gie]

Originally posted by AznVirus
mandrel bends and crush bends arent that much apart are they? i mean the crush bends cant restrict that much air. it wouldnt lose hp would it?

Yes, it would.

[AznVirus]

Originally posted by b-b00gie


Yes, it would.

how much hp difference do you think it would be between mandrel and crush bends? im not taking my car to the track or anything, just for street and maybe show later on. would it even be noticeable when driving?

[nis.k.a.]

I have the MX, it's the same quality as all GReddy exhausts, top notch. Don't get a crush bent exhaust, ESPECIALLY if you want to go show. It doesn't matter if you're going to the track. A quality exhaust and piping is a must even on the open roads. You're exposing the pipes to the forces of nature. Why not buy the more expensive GReddy now and not have to worry, instead of replacing sections of rotted/rusted pipe. Yeah, it's a little pricey, but from first hand experience, it's well worth it. The best thing about the GReddy is that it doesn't make the G20 sound like a raspy Honda. It has a lower rumble and isn't offending at all. The reason I bought the GReddy is because it is a very high quality exhaust and it's quiter than most exhausts. I mean really, a classy G20 with a loud popping exhaust note doesn't look/sound right.

[G-Forces]

The problem I've had with custom exhausts is that it's kind of a generic setup. They put you up with a universal muffler and mimic the piping to the back. My custom setup cost close to $500CDN for the initial setup. It ended up being too loud so I went back and had a resonator put in and the rest of the piping matched up. $250. That's almost $750CDN for my exhaust setup. The Greddy is $550US and take the exhange and it's only a couple hundred more than what I've got done. If the Greddy would have been available a couple years ago that's what I'd have gotten. As it stands I still got my eye on that damn Greddy. Ugh, job first, exhaust second. :hehe: :hehehe:

[b-b00gie]

Originally posted by G-Forces
As it stands I still got my eye on that damn Greddy. Ugh, job first, exhaust second. :hehe: :hehehe:

*EDIT*
Ugh, job first, Brian's Impul kit second, Brian's Nismo grill third, exhaust fourth. :hehe: :hehehe:
*EDIT*

[G22DET]

everyone quit doing everything and get the damn EVOs from me...hehe...still have 6 left....i dont wanna see it!!!! hehehe

[G20-KIWI]

with crush bent pipes the restriction is very minimal, like you
wouldn't even notice and who cares what it looks like underneath.
As for rust, that is why you paint it, I don't really care what mine
looks like and my car doesn't get exposed to road salt here.
My Skyline had custom headers and crush bent exhaust with 2 coby
mufflers and it was an awesome job, it was painted black with a
nice stainless tip and it was a very good job $600 NZ dollars I think
thats less than $200 US. It did not rust at all and the mufflers were
sweet as, kinda loud, ok very loud, ok so loud cops used to follow
me back home but it sounded good.

I guess what I'm saying is I personnally don't like pre-made systems
I think they are massively overpriced and don't sound that good
anyway. I know people that have paid way to much and not got
quality they thought they were getting.

[Blue94G20T]

Anyone know anything about the 5Zigen Fireball Catback System for the P10 besides that it's damn expensive? I saw it listed for $552.50 at http://autocarparts.com/search/resul...54&cat=Exhaust

[nis.k.a.]

Top companies (i.e. GReddy) don't just foolishly make exhausts. There's actual R&D involved. With a crush bent exhaust, you never know what you're gonna get. There are only a handful of people out there that could replicate a custom exhaust with consistency. Some people don't realize that on a stock car, a GReddy isn't going to give you a whole lot of power. As you continue to add parts to your car that compliment the aftermarket exhaust, the more effective it becomes. This is where crush bent pipe (painted or not) starts to be ineffective and the mandrel bent ceramic coated pipes will continue to perform. Yes, you can paint cruch bent pipes, but the pipe can also rot inside out. Like many people have said, their custom exhaust is loud. Some try to remidy this, some don't, but like someone said, they get followed by cops. GReddy is 50 state legal. I have better things to do than watch my back every single time I want drive hard, or at all for that matter. As for 5Zigen Fireball, they look cool, but realize it will deminish your low end power. Super straight through exhausts like the Fireball and N1 are made to make power at peak. Those kinda exhausts will work good with a set of bumpsticks, but don't be disappointed that your city driving sucks. If you drive on the freeway most of the time they're good.