EBAY civic headers.

[ekcoupe]

maybe get a few more qoutes or just diy it

[dougie_504]

Header isn't hard to install. $150 is too much bro. Should be less than $100.

Have you got yourself a cat and cat-back?

[StrawberryFace]

negative man its a straight bolt on im buying high flow cat next week man still looking for one and yeh 150 is ridiculous man but soo cbf doing it on the floor. save me the headache.

[mugen_ctr]

whats the size when the headers come into one, when it merges for the cat, 2.25, or 2.5

[dougie_504]

I believe it's a 2" outlet.

@OP: Don't pay for installation until you have the cat and cat-back. Do all 3 at once, otherwise you'll waste $$$ on labour.

[ekcoupe]

I believe it's a 2" outlet.

@OP: Don't pay for installation until you have the cat and cat-back. Do all 3 at once, otherwise you'll waste $$$ on labour.

agreed, that's what i did an ended up costing me $160.00 install for (headers,cat n muffler) also an extra $70.00 for a flexi pipe to fit headers to cat so all up $230.00 which is quite cheap for such a good job

[StrawberryFace]

thats true guys but my brother juss rang me he asked his old boss if we can use his mechanic shop everything there needed and he said yeh no problem soo installing on wednesday there i was juss really cbf doing it on the floor at home. installed a SRI yesterday and love it sounds soo good now cant wait for the headers then high flow cat.

[dougie_504]

thats true guys but my brother juss rang me he asked his old boss if we can use his mechanic shop everything there needed and he said yeh no problem soo installing on wednesday there i was juss really cbf doing it on the floor at home. installed a SRI yesterday and love it sounds soo good now cant wait for the headers then high flow cat.

Just make sure you isolate that SRI pod with a shield, or extend it into your resonator housing. I know it's a D-series but you don't want heat-soak no matter what lol

[StrawberryFace]

Just make sure you isolate that SRI pod with a shield, or extend it into your resonator housing. I know it's a D-series but you don't want heat-soak no matter what lol

what heat-soak man??

[dougie_504]

Errr...well if you have a SRI it will breathe in hot residual air produced by your engine, therefore decreasing the concentration of the O2 molecules in the volume of air being consumed by your engine, robbing you of potential power.

Isolating the filter to an area that only breathes cool air away from the engine allows it to breathe in a higher concentration of O2 molecules, increasing the power produced by your engine's combustion. Basic chemistry and free kilowatts.


The temperature that allows for the highest concentration of O2 molecules by volume is 4 degrees celsius.

[mugen_ctr]

metal heat shield/ metal air box arnt very effect as well, metal conducts heat, so its not as effective as u may think, plastic air box is only the real way to go, as it insults the air from the engine bay the best, it doesn't absorb heat as much as metal

with regards to heat soak, When summer comes around, u will feel that ur car has lost power and torque, driving in 35 degree heat, best to wack back on that air box, actually, come to think of it, with engine temp, itd be more so 45 plus degrees in the engine bay, so suckin in air that hot isnt the best, an u will notice pinging

Another note, with SRI, u will loose a bit of low end torque/power, as well as fuel economy, so having one is more so eye candy than performance mod

[dougie_504]

metal heat shield/ metal air box arnt very effect as well, metal conducts heat, so its not as effective as u may think, plastic air box is only the real way to go, as it insults the air from the engine bay the best, it doesn't absorb heat as much as metal

with regards to heat soak, When summer comes around, u will feel that ur car has lost power and torque, driving in 35 degree heat, best to wack back on that air box, actually, come to think of it, with engine temp, itd be more so 45 plus degrees in the engine bay, so suckin in air that hot isnt the best, an u will notice pinging

Another note, with SRI, u will loose a bit of low end torque/power, as well as fuel economy, so having one is more so eye candy than performance mod

I believe plastic actually absorbs heat faster than metal, but sheds it quicker. Whereas metal absorbs heat slower but retains it for longer period.

Either way, having a metal heat shield with a cold air feed to your pod is effective by comparison to an unprotected SRI. I'm surprised you're even doubting the worth of a heat shield at all mate...