Cammed Motors Specs + DYNO Graph Mandatory

[stndrd]

Every bend in an exhaust or intake system slows down air speed. The more you slow it down, the less efficient it becomes. By having a muffler that has 2 180 degree bends in it, this slows down the air too much causing it to become a bottle neck

[Super-DA9]

Every bend in an exhaust or intake system slows down air speed. The more you slow it down, the less efficient it becomes. By having a muffler that has 2 180 degree bends in it, this slows down the air too much causing it to become a bottle neck

Ok so just quickly going back to the post about the twinloop yielding less performance than the stock system, I could be wrong but I thought the stock muffler (DC2/EG/EK) had quite a few internal bends in it? Like, more than 2.

So I'm still trying to figure out how the 2.5" system with less bends in the muffler can produce less performance than the factory system.

Or is the factory muffler a different design to what I am thinking of?

[neut]

Magnaflow is good quality in my opinion. Im using magnaflow 100 cell, Magnaflow 18inch resornator, vibrant 12inch resornator and Magnflow muffler.

[destrukshn]

personally i use SMB mufflers, made in australia, very high flowing, very quiet, Haks at performance exhaust recommends them.

[Limbo]

Yup got an SMB muffler on my EVO, quieter than the magnaflow ones.
SMB hand pack the mufflers which are more solid.

They are more expensive than the magnaflow ones though

[Lukezen27]

SMB muffler going on Sat at Hacks

[EKVTIR-T]

Yup got an SMB muffler on my EVO, quieter than the magnaflow ones.
SMB hand pack the mufflers which are more solid.

They are more expensive than the magnaflow ones though

just checked their website

look the goods but around 500 bucks just for rear muffler idk

[destrukshn]

they are well worth the money dude.
i am very fussy with my mufflers, esp about sound, i hate loud cars, period.
been through alot of of mufflers
only the SMB and the ones from hi tech mufflers are the only ones i liked.
but the SMB ones over the hi tech ones hands down.
i'm using thier rear muffler and centre muffler.

[eeko]

Excuse the crap scaling... was done at a dyno day over the weekend....

B16A2

B18C2 Intake Cam
ITR Intake Mani
ITR Throttle Body
ITR Fuel Rail
Ebay CAI
5zigen 4-2-1 Headers
400 Cell Cat
T1R 2.5" Catback
J's 60RR

Stock ECU

Thoughts? Not sure what to make of it tbh...

[cbauto]

Needs tune.

[eeko]

Needs tune.

Think I could actually get something worth it from tuning?

[destrukshn]

change the cat to a 200/100cell cat too.
and get a tune.
you'll get better fuel economy, more power through the whole rev range and more response.
i got a low reading from the dyno day too.