VictoryRed06

Hey i got a buddy with an evo and he has a straight thru muffler, is there anyone that manufactures those for our car yet, cause i want to run straight pipe but not have it be so loud.

ToMeGuN

Borla Does, but its what ya asked "Just Muffler" not the complete exhaust kit. And be prepared for the fart can sound

codyss

Actually if just a muffler was used and the stock resonator was intact it wouldn't sound to bad.

And an oval bodied muffler is different than a round fart can, the oval muffler has more roving material and room for sound wave expansion/cancelation.

Straight through mufflers:
-Borla
- Magnaflow
- SLP
- Dynomax Ultra Flo

myoshizawa819

Corsa's muffler is straight through. Really, if you look at their systems it's almost like a dual resinator system vs the factory resinator with muffler design.

Drewfu$

I didn't know that the Borla mufflers were straight through. But the rest that are listed are. Flowmasters are not.

ToMeGuN

http://www.borla.com/faqs/

Read 2nd paragraph.

Q. How does FLOW affect performance and sound?

BORLA exhaust systems’ patented, straight-through design increases exhaust gas velocity and moves more uninterrupted air through the engine. Since there are no restrictions, exhaust gases evacuate the cylinder completely, thereby allowing the new charge to come into the cylinder and create more power. The result is a larger volume of torque from the engine as well as an enhanced exhaust tonal quality

Jmc007

Magnaflow and Dynomax make some straight through mufflers ...

VictoryRed06

sweet thanks guys....i thought corsas exhaust was a cat back tho? i want no cat with just a straight muffler..sorry if i sound stupid.lol

2006ArrivalBlueSS

Don't forget that turbocharged engines are MUCH quieter than supercharged ones to begin with allowing them to fit flow-through exhausts without the obnoxius loud exhaust tone associated with this design. Have you ever seen how long the stock, or even Magnaflow, resonators are on the 2.0L SC?? About 24"-30". That's HUGE!! Hope this helps.

VictoryRed06

ya it does thanks

VictoryRed06

so can i run race gas with the corsa exhaust?

Drewfu$

You can run race gas with any muffler. Race gas could hurt your cat though, and it definetely can kill some O2 sensors. Make sure its unleaded though, leaded will definetely clog a cat and kill sensors quickly.

VictoryRed06

ya i know that, thats the whole reason y i want to run straight pipe, no cat just straight pipe with a straight thru muffler that way i have reduced noise and i get the power that i want.

VictoryRed06

is there anyone who makes a test/down pipe to replace that damn cat on our exhuast?

zinner

Yeah an exhaust shop or your local tuner can do that for you.

VictoryRed06

ya a buddy of mine told me about a place in concord where i can get it done for like 60 bucks.