Opinion on catback or rear-section
01-20-2005, 03:52 PM
#1
Opinion on catback or rear-section
The added power from the headers is adequate enough for me, I thought of getting a cheaper rear-section from frankencar just for looks. Would it be worth paying the extra and just getting an entire cat-back exhaust?
01-20-2005, 05:15 PM
#4
Thanks for the input guys, i'm familiar with these manufactuers, but let me reiterate my question. I'd like to know whether installing a cat-back system going to provide enough additional power to make it worth my money to spend? I ask this because from i've gathered on the .org, the 5.5 gen exhaust is already less restrictive, therefore if I already have headers installed it will be unecessary to add a cat-back system. However, if the cat-back system will amplify the extracted power from the headers, then I will consider buying the entire cat-back instead of just a rear section for aesthetic purposes.
As much as I would love to fork out dough for an appealing set of cattman headers and cat-back exhaust I'm just being thrify (stingy, cheap or frugal if you want to be a d!ck about it
) with purchases.
FYI i've tried searching for this subject but didn't find any useful material so whatever opinions you have to offer is good for me
As much as I would love to fork out dough for an appealing set of cattman headers and cat-back exhaust I'm just being thrify (stingy, cheap or frugal if you want to be a d!ck about it
) with purchases.FYI i've tried searching for this subject but didn't find any useful material so whatever opinions you have to offer is good for me
01-20-2005, 05:27 PM
#5
Yes, it does add power, but moreso on the top end of the HP curve. It also adds something called NOISE. The best bet for you is to get a resonnated B pipe and stick with a stock muffler. That makes a decent amount of noise, but nothing like an aftermarked muffler (magnaflow, HKS, Greddy, etc..). There are members who I know have this setup, and their car performs very well and is quiet to boot.
01-20-2005, 06:43 PM
#6
noise isnt a big concern for me, although if i'm setting of car alarms with every passing in a parking lot then i'd will be a problem. anyways i saw this video http://www.vqpower.com/v2/downloads-file-147.html of an 02 max w/hs headers, budget something or other and a cattman rear section, the sound wasn't all that loud. unless of course the sound was dimished in the recording process.
regardless, i'm looking into a rear-section and should the cat-back turn out to be worthwhile then probably that.
regardless, i'm looking into a rear-section and should the cat-back turn out to be worthwhile then probably that.
01-20-2005, 08:51 PM
#7
Originally Posted by NoMotive
regardless, i'm looking into a rear-section and should the cat-back turn out to be worthwhile then probably that.
(I know, shameless shameless plug for em here...
)
01-21-2005, 05:19 AM
#9
Originally Posted by Ammi
How much was your Frankencar catback?
01-21-2005, 05:47 AM
#10
Originally Posted by Puppetmaster
I've been pretty impressed with my recently installed Frankencar cat-back... its 2.5" stainless piping and a nice non-droning muffler... I have a y-pipe on it and there's a nice rumble to it, although not overly obnoxious, but enough for people to know you're there... for the price, its def cheaper than the Cattman and maybe cheaper than getting just a b-pipe and custom piping to the stock muffler. I don't think the Frankencar muffler is a true "straight through" muffler like the GReddy, but I doubt that really makes more than 1-2hp difference... someone please correct me if I'm wrong here.... anyways, whatever it is... I like the Frankencar.... good quality and good price...
(I know, shameless shameless plug for em here... )
(I know, shameless shameless plug for em here...
)
Frankencar is the quietest, stealthiest catback available!
01-21-2005, 06:55 AM
#13
Senior Member
Join Date: Aug 2004
Posts: 293
Originally Posted by chris'smax
I cant stress to you enough, keep the stock muffler and just add some magnaflow tips.
I agree, I have a Cattman exhaust, and although much quietrer then Greddy and HKS, it still creates noise in the car that I don't want anymore. it was cool at first, but now is just old. even with a full catback, the performance isn't really THAT noticeable. I wish I didn't throw away my stock exhaust :-(
01-21-2005, 11:50 AM
#14
Originally Posted by Puppetmaster
$440 shipped.... not sure how much it is now, but Steve was talking about a Frankencar GD in the near future.... don't quote me on that though, I just remember him posting that somewhere recently.... maybe in the General Discussions....
01-21-2005, 11:55 AM
#15
Guest
Posts: n/a
if i were u guys.. i would just get a b pipe and just get my stock mufferl polished some where and put on chrome tips...
01-21-2005, 12:02 PM
#16
Originally Posted by scopium
if i were u guys.. i would just get a b pipe and just get my stock mufferl polished some where and put on chrome tips...
01-21-2005, 05:52 PM
#18
Donating Maxima.org Member
Join Date: Mar 2004
Posts: 308
I also have the Stillen rear section and y-pipe, but yesterday I installed the racing street pipe from Custom Maxima. I love the sound of my car, even though the engine is much louder than the exhaust (SC'd).
01-21-2005, 06:42 PM
#19
Senior Member
Join Date: Jan 2004
Location: West Henrietta, NY
Posts: 831
Originally Posted by chris'smax
I cant stress to you enough, keep the stock muffler and just add some magnaflow tips.
If you get rid of the expensive stock muffler for an overpriced $hitty aftermarket muffler you are a fool. You will no gain one single HP. IF anything you will lose power. The stock muffler is about the best you can buy.
01-21-2005, 06:53 PM
#20
Originally Posted by mdloops
+1
If you get rid of the expensive stock muffler for an overpriced $hitty aftermarket muffler you are a fool. You will no gain one single HP. IF anything you will lose power. The stock muffler is about the best you can buy.
If you get rid of the expensive stock muffler for an overpriced $hitty aftermarket muffler you are a fool. You will no gain one single HP. IF anything you will lose power. The stock muffler is about the best you can buy.
I have to disgree with this statement. If you want to keep an OE look, Frankencar and Cattman aren't "overpriced $hitty" alternatives. Cattman is a little more $$ than Frankencar but it is by no means "$hitty". I had my Frankencar muffler put on yesterday and it looks and sounds great. Just as quiet as stock. I do agree with you about not gaining any hp from a muffler.
01-21-2005, 06:59 PM
#21
Hmm... this calls for some dyno evidence. Anyways I doubt anyone has graphs of just an aftermarket rear-section.
So from it sounds like even with a set of headers, having an aftermarket rear-section will make no additional power over the oem muffler.
So from it sounds like even with a set of headers, having an aftermarket rear-section will make no additional power over the oem muffler.
01-21-2005, 08:04 PM
#22
Since the stock muffler is free flowing, you won't get any additional hp freed up by changing the muffler. However, if you change the piping from the Catback you will have in increase in hp because of better air flow.
01-21-2005, 08:35 PM
#23
Stock B and cat are free flowing....to a point
Stock muffler is free flowing.....to a point
The point that everyone seems to be missing here is that; sure stock is good, but aftermarket is better. However, this is only true if you have a FULLY modified exhaust (headers, high flow cat, B and rear section). Its all about exhaust velocity. Exhaust velocity = cylinder scavenging. Cyl scavenging = more air in/out = more power and tq.
If you change one but leave the others stock, the air will:
In a stock system with aftermarket rear section:
Flow perfectly until it reaches said mod and has room to expand and slow down. This, causing the air coming behind it to hit a "wall" of slower air and create pressure in the exhaust system. It makes no additional power.
Add a Y pipe to a stock system (3.5l only)
You gain exhaust velocity coming out of the precats only for it to slow down again once it hits the stock cat and Crimped B pipe. Minimal gains, at best.
Add a B pipe to a stock system
You gain exhaust velocity coming out of the stock Y for it to slow down again once it hits the stock rear section and maintains that velocity out the stock muffler. Again Minimal gains, at best.
Add both Y and B, but leave stock rear section and Cat (3.5 only)
You gain exhaust velocity coming out of the precats only for it to slow down again once it hits the stock cat. Then it will compress and spit out into the aftermarket B, and slow down again at the stock rear section and maintain that velocity out the stock muffler. Moderate gains
Same as above but with a high flow cat:
The difference is it wont slow down thru the cat, and will keep a decent velocity until it hits the stock rear section. Slightly better moderate gains.
Add both Y and B, aftermarket rear section and high flow Cat (3.5 only)
You gain exhaust velocity coming out of the precats and it will maintain that velocity until it exits the rear section and muffler. Substantial gains
Headers, High flow Cat, B and Aftermarket (larger diam) rear section and High flow muffler:
The exhaust will gain substantial amounts of velocity from the time it exits the head until it reaches the end of the primary. From there, the velocity will remain the same until it exits the new larger rear section and muffler. VERY Substantial gains in BOTH whp and wtq.
Now, as you can see; the more you add to the exhaust, the better the exhaust velocity, the more power it makes.
Stock muffler is free flowing.....to a point
The point that everyone seems to be missing here is that; sure stock is good, but aftermarket is better. However, this is only true if you have a FULLY modified exhaust (headers, high flow cat, B and rear section). Its all about exhaust velocity. Exhaust velocity = cylinder scavenging. Cyl scavenging = more air in/out = more power and tq.
If you change one but leave the others stock, the air will:
In a stock system with aftermarket rear section:
Flow perfectly until it reaches said mod and has room to expand and slow down. This, causing the air coming behind it to hit a "wall" of slower air and create pressure in the exhaust system. It makes no additional power.
Add a Y pipe to a stock system (3.5l only)
You gain exhaust velocity coming out of the precats only for it to slow down again once it hits the stock cat and Crimped B pipe. Minimal gains, at best.
Add a B pipe to a stock system
You gain exhaust velocity coming out of the stock Y for it to slow down again once it hits the stock rear section and maintains that velocity out the stock muffler. Again Minimal gains, at best.
Add both Y and B, but leave stock rear section and Cat (3.5 only)
You gain exhaust velocity coming out of the precats only for it to slow down again once it hits the stock cat. Then it will compress and spit out into the aftermarket B, and slow down again at the stock rear section and maintain that velocity out the stock muffler. Moderate gains
Same as above but with a high flow cat:
The difference is it wont slow down thru the cat, and will keep a decent velocity until it hits the stock rear section. Slightly better moderate gains.
Add both Y and B, aftermarket rear section and high flow Cat (3.5 only)
You gain exhaust velocity coming out of the precats and it will maintain that velocity until it exits the rear section and muffler. Substantial gains
Headers, High flow Cat, B and Aftermarket (larger diam) rear section and High flow muffler:
The exhaust will gain substantial amounts of velocity from the time it exits the head until it reaches the end of the primary. From there, the velocity will remain the same until it exits the new larger rear section and muffler. VERY Substantial gains in BOTH whp and wtq.
Now, as you can see; the more you add to the exhaust, the better the exhaust velocity, the more power it makes.
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