JoshMO

What do you ******* prefer when it comes to making a cheap exhaust. I'm gonna do a 2.5" all the way back from the downpipe (read: when I get my turbo kit) but what do you guys suggest as far as a muffler goes? Something cheap but doesn't sound like ----.


Oh yeah I've been told that turbos cancel out noise... If this is true does that mean the exhaust noise won't sound like a hive of angry metallic bees coming out of my *** anymore?

E-b0la

Turbos do quiet the exhaust. I had a glass pack and thrush muffler on my hatch with a header, and the put the turbo on and it quited down a lot.

Scott-EP

turbos help get rid of the raspy sound. i just made a 2.5" exhaust out of an intercooler kit from racing solutions. it is 2.5" from the turbo to the muffler with no cats or resinator. i used a $20 stainless ebay muffler and i think it sounds awesome.

Smokey

Get a sound clip of that ----...

Atticus

2.5 straight pipe with a blown rez and a glass back
no rasp, sounds great and is quit till waste gate opens up

JoshMO

Nice

Looks like an exhaust is going to be cheaper than I thought.

Scott-EP

i will try over the weekend

Braineack

Go big or go home....I'm much loving my 3" exhaust.

Scott-EP

3" is way overkill. im not saying there is anything wrong with it, but it is overkill on pretty much anything built on this site

Braineack

may be true, however, the 2.5" system has a cross sectional area of 3.91761 square inches; a 3" is 7.069 Sq"...80% larger.

while it certain may be more than you need, there's no way it will hurt you, and I'd suspect you'd see better spool/ouput all other things being equal.


but yes, to answer the first question, the turbo acts as a muffler, wire your wastegate open and you'll notice the difference right away. a 2.5" system with a muffler alone will not be loud. Make sure to get a straight-through designed muffler to prevent flow restrictions/loss.

fwiw, my 3" exhaust with a small magnaflow muffler is much quiter than the same engine with a header, 2.25" exhaust with an additional resonator and larger muffler.