$189 EBay Cat Back - Eh? Not too bad actually.
 

[ame="https://www.youtube.com/watch?v=nl5f3IIx3ms"]Scion FRS - EBay "RS Type" Exhaust Sound - YouTube[/ame]

So above is a sound clip of the exhaust. I think it may have already been on here once but wasn't certain.

Basically, wanted to hear the car a bit more but since I rallycross the car as my main form of racing didn't want to spend a $1000 bucks to shoot rocks at it and didn't want to get a track pipe since its my daily. Stumbled on this little fella and am actually impressed. The welds don't seem terrible, the fit was good, it's loud enough to notice but not annoying, and the price is hard to beat. $189.99 to my door.

https://i.imgur.com/Khjenun.jpg

https://i.imgur.com/y3b1OsT.jpg

https://i.imgur.com/bAcvcIx.jpg

https://i.imgur.com/XOKKCFs.jpg

Lawnmower

Please keep your worthless posts that contribute nothing to the thread elsewhere like off-topic. WTF?

Link to add? Cant seem to find it.

http://www.ebay.com/itm/For-2013-201...JVZKav&vxp=mtr

Nice find. Did that thing net you any power?

not bad for that price

While I agree with your sentiment, the sound definitely isn't as deep as a lot of the other aftermarket offers usually more associated with being high quality.

OP: I think for rallyx you made the right choice. You're going to hammer the crap out of it, may as well get something that's 100% replaceable. I wouldn't want to check rocks at my MXP SP.

I think a header may deepen it up enough to sound better!

Good review, I like seeing when there are cheap gems, and it looks like this does exactly what you want it to do.

Odds are no. Butt dyno at first felt like it might be breathing a little bit better but I think that was just wishful thinking.

haha, at least you're honest.

You're hardly ever going to be able to hear the deeper tones of an exhaust from a video like this. Most microphones aren't going to be able to pick up those frequencies accurately at this distance. He's already probably clipping the mic just based upon how loud our cold starts are.

Plus exhausts sound different under load driving down the street than they do free revving.

Very hard to accurately judge this system just from the video that was posted.

Fair point. We need to find a free ios/android app for spectrum analysis to use as a standard so we can all compare. :thumbup:

good find man. I say if it does what you want it to do, then rock the shit out of it. Fuck the haters. I do.

That's the power of positive thinking bro.

Sent from my SM-N920V using Tapatalk

Yeah. this video was taken with an iPhone. I'm going to do a more accurate review of the system for my YouTube channel using my Zoom external mic. Sadly my camera decided to be a little bitch before I could do so.

The downside to this exhaust in the inner diameter is only 2.25. if you just want sound though it doesn't really matter. I had this on my car for a year.

Arent all catback essentially for sound? HP gains aren't really to had at all if NA. All the power is the header, cat removal and tuning.

I don't know for certain but I believe your right. I think the downside of it being only 2.25ID is if I were to add other performance parts up stream it may not have the necessary airflow to take full advantage of them. But like I said I don't really know.

It does also make sense to me though that a less restrictive system, even just a cat back, could improve power but I don't believe it'd be by any noticeable amount.

Yes, dynos will show marginal gains with most catbacks (like 5-10hp tops) but more so if you were to boost your car or add more breather mods they would be somewhat restricted by the smaller exhaust, not allowing your car to breath as well will result in a loss in power usually.

I have to say I agree, anyone can weld tube together and make it fit but building a tuned exhaust for a deep clean note and make power is different.
Additionally you get what you pay for rust will start in 3-6 months depending on geographical location and weather

You're correct. 95% of catback is just for sound, 4% is looks and 1% for the power.

Yes I have noticed surface rust on the asian made cheap exhausts. They usually use 201 SS that's not passivated as you tell by surface spot rust. However in my experience some blue magic can clean it right off and polish it up. I had a cheapo turbo back on my WRX for 5 years no other issues.

The real question is this better/higher flow than OEM? Probably. OEM is mild steel.

OEM is also double wall and heavy.
As for the other problems the wall thickness on some of these cheap exhaust are so thin they crack under vibration at stress points and welds.

Sound is deff 95%. The rest of my definition for a good exhaust regardless of brands are:

- Not having to spend more than the exhaust itself to make it fit

- Last through at least 3 years of TX bipolar weather cycles

I did notice it's made with T-304 stainless which is the same grade used for the Invidia N1. So if it last as long as one of those at a fraction of the costs I'll be satisfied. This is assuming it doesn't hook in the dirt and rip off one day. Either way we will see. If it least a year, right on. If it last 10, right on.

For a naturally aspirated car, you're perfectly fine with 2-2.5" ID exhaust systems. Nothing you do will make a huge difference unless the exhaust is of a poor internal design that restricts flow like stock.

-alex

304 is 304. I use it pretty much daily at work. The difference in quality is usually the lack of passivation or other secondary treatments. It will last just fine. Like any brand name you pay for the brand not always quality. Especially on something simple like a exhaust that really cant fail badly. Now on a turbo or engine part yeah you want that to be a brand name with their reputation behind it.

Nike vs Sketcher is an example. Are Nike's better sure, but 4 times the price better? Not really.

This has been quality discussion. Thanks folks!

Your statement is incorrect 304 is 304.
In order to be considered 304 the mixture in the metal has to be defined as below. The problem with Chinese 304 cheap stainless is they go minimum % of Chromium (Cr) and Nickle (Ni). and Maximum of cheaper materials like Iron (Fe) and Carbon (C)

This is why the Metal is cheaper and less of a quality, Although it fall within the constraints of 304 stainless it is a less quality material. Too much Carbon and the steel is brittle, too much Iron and it oxidizes faster. Not enough Chromium and Nickle causes rust spots. They also go extremely thin on the sidewall of the exhaust for minimal material used to produce the exhaust. It is so light you can flex it with your fingers squeezing it. This is what you get with cheap eBay exhausts. Yes it works but there is a reason companies like Borla Magnaflow Corsa Tomei Apexi Nameless Perrin ect cost so much. They have a good reputation and have the consumer in mind for an end result instead of making a cheap quick $. If the cheap eBay exhaust fails rusts cracks you just accept the inferior design and buy another. If there is a problem with one of the above companies, expect customer service and a replacement.

Component Wt. %

C Max 0.08
Cr 18 - 20
Fe 66.345 - 74
Mn Max 2
Ni 8 - 10.5
P Max 0.045
S Max 0.03
Si Max 1

First of all you really can't prove what your saying its speculative. Also its iron particles on the surface that causes the rust spots. This is why you passivate as I mentioned earlier. Something to not do and lower cost as well.

And no 304 is 304. If the chemistry falls in those composition ranges its 304 SS. No other name. From what I read the cheaper chinese exhausts often use the cheaper 201 SS. The US and Japanese exhaust are more expensive because 1. you pay for their higher labor rates and engineers 2. Better quality control and possibly a thicker gauge material and or a "certified" 304 with a material CoC.

My main point is exhaust is probably one thing you can cheap out on. Nothing bad will happen. SS is almost certainly better than the factory mild steel piping.

have any rallycross photos?

do you disable the ABS?

do you have a locking diff?

Ill just take my 25 years of industry and car experience and sit here quietly from now on