TwistedToys707

i got a tri-y at pick and pull for 30 bucks.luckily all i had was a 14mm. the kid at the window was pissed. its worth it but i wouldnt pay no restocking fee for their bad.

GO_BLUE!

not to change the subject but i'm about to make the header decision for my 3VZE.

I'm not interested in increasing HP as much as I am interested in saving the headgaskets and not spending a fortune. I was thinking Doug Thorley (cuz Downey is no longer an option) but wondered what y'all thought. I have a CA legal Magnaflow cat & muffler.

One thing is certain: after reading TwistedToys last post I am going to spend a little more time at Pick-N-Pull, looking around...

808nickh

i think doug thourleys are a good idea my dad has downeys for the 3.slow and they crack the emission fitting for the egr i think and ofcourse created an egsaust leak also we had to weld the o2 bung and also a little heads up putting headers on that motor SUK! ur looking at 2 1/2hrs to 3 thats if everything goes smooth i can get some pics 4 u if u like

kanyonkritter

the largest advantage gained from running a tri y header over a 4 to 1 is that they increase scaveging of exhaust gases from the cylinder which increase's your volumetric efficiency. It gives almost the same afffect as running a cross over tube on V style motors.

AdmiralYoda

Better late than never.

But you are 100% correct. When it comes time I'll be picking up one of these.

93 Toyota 4x4

oh well if headers are developed for a big block V8 then they must be good for a 2.4l four cylinder..........yes I realize they are 4 cylinders, but I bet the firing order would be different so will the header design.......

get a header designed for the intended engine, not based on another engine....

Blackulua

DT tri-y pricey but it performs well 2 1/4" pipe with a Borla SS muffler
LCE ceramic SS 4 to 1 header last very long because I replaced 2 mufflers and still running leak free