Best Performance Exhaust?

[PhatBeezy]

So I know we've covered the "loudest cat-back" exhaust. But I was wanting some insight and opinions on the best exhaust performance wise. I've looked around some, and it might sound stupid, but I'm leaning towards the MagnaFlow full cat-back exhaust for the tC.

[Soulbane]

Define performance?

Big numbers on the dyno? Strong torque band? Low, Mid, High Range power?

Everyone has their own opinions about what performance is, but generally speaking, a cat-back system alone wont create any significant performance gains, especially on a NA motor.

[Speedstar]

Soulbane you are correct. Cat-backs dont do that much.

What you really want to do is get the cat back without any bends. That kills performance right there. But you have to be careful becuase that is going to be a loud. Also, you lose power down low in the RPM, but get it on top.

You might wanna check out the HKS high power.

[ac3 b00gi3]

nope
not at all
u'll probably dyno
somewhere around 3-5 WHP
u won't see any power until u add
a nice header and s-pipe
then u will dyno anywhere from
10-15 WHP .. giv or take a few HP
or u can custom a 3" straight pipe
with no cat .. u'll burn a sh*t load of gas
but u will feel a HUGE gain

[H.Series tC]

With 3" exhaust you will lose A LOT of low end torque. I went with 2.25" dual cat back it keeps the back pressure up for low end and provides a great deal of higher end performance. I dont have to think twice about doing cuisin at 65 in 4th. I just put in 2 glasspacks to keep the sound down. This is what it looks like with 3A performance tip mufflers with out the glasspacks.

[ac3 b00gi3]

thats crazy
i never seen that before

[Soulbane]

Originally Posted by H.Series tC

With 3" exhaust you will lose A LOT of low end torque. I went with 2.25" dual cat back it keeps the back pressure up for low end and provides a great deal of higher end performance. I dont have to think twice about doing cuisin at 65 in 4th. I just put in 2 glasspacks to keep the sound down. This is what it looks like with 3A performance tip mufflers with out the glasspacks.

The cat-back shouldn't even affect the power less or relocation of the torque band that significantly anyways.

The torque is affected mostly when the pressure closest to the exhaust manifold is affected.

If you toss in a cat-back, you still have the stock S-Pipe and headers being as restrictive as before. There wont be much change period.

Fact is, Turbo cars make enormous gains off of exhaust systems, NA cars just dont.

[H.Series tC]

I wasn't talking about turbos. But 3" on a normally aspirated car will change you low end performance.

[navylife59]

2.5" is as big as you want to go on a N/A or S/C 2AZ-FE if your running on the street.

[pwee08]

i'm thinking of getting the DC Sport Exhaust system not to loud or low just right... my friend recommended it to me cuz I'm not into those exhaust that your going 25-mph and sounds like your hitting 80 so yea...would anyone recommend me any other exhaust i should take a look at and yea i wouldn't mind a nice boost in horsepower or performance

[navylife59]

Magna Flow is what your looking for.

[pwee08]

ok it sounds cool real cool im diggin it but does it give you more horse power or any type of boost my friend was telling me a full dc sport exhaust gives but like 20hp more

[navylife59]

No prob but the thanks go to out members. They have given this exhaust great reviews. Plus I have known about Magna flow products since my early days of hotrodding.

[pwee08]

Originally Posted by navylife59

No prob but the thanks go to out members. They have given this exhaust great reviews. Plus I have known about Magna flow products since my early days of hotrodding.

yea this club rocks lol i have learn so much... well does the Magna flow exhaust give you a boost in hp?? cuz my friend was saying his DC Sport gives em a bit more hp

[navylife59]

Is this just a simple axleback or a full catback system. AEM's website has their DC Sports link inactive. I wonder if they are stopping that product line or sold it off? The DC Sport axle back has the same exhaust routing as the OEM muffler. The Magna Flow has a slightly more straight path therefore it should flow more efficiently.

[pwee08]

well i dont kno much of exhausts whats a cat back and the other stuff im new to the game....

[navylife59]

http://www.club-tc.com/forums/perfor...k-exhaust.html

[pwee08]

Originally Posted by navylife59

http://www.club-tc.com/forums/perfor...k-exhaust.html

thanks navy for all the help i think i might be looking towards getting exhaust or the rims lol but thanks alot man