When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Installed my new Comptech 4-1 header last night. Install was pretty straight forward, it took around 3 hours total.
Some install tips:
-Be sure to buy a new donunt gasket for the header, you wont be able to re-use the old one since its formed to the stock header.
-The stock header removes easiest from the bottom, not up from the engine bay
-For the Comptech 4-1 it install's the easiest from the bottom of the engine bay lifting up ( I belive the Toda and the Mugen you can get them in from the top down)
-Tighen down the header from the bottom up, i.e tighten the bolts where it attaches to cat/testpipe first, then the bolts that attach the header to the head.
-Car is even more rev happy (I have the Comptech lightweight flywheel aswell, with this header in it made a noticable difference too, the car is super rev happy)
-Exhuast note changed slightly, in the way that it lessoned the drone from the exhaust and TP, there is still some drone, but not that much.
-Theres a nice roar up front now that adds to the rear sound coming from the Buddy Club dual I have
-Car feels a little bit quicker, but that may be just me, Im not sure if you can feel 10-15hp (claimed by s/c guys) added to the upper 200's-300 hp that I already have.
You would think for the price that Comptech would include the collector donut too !
I would suggest to retorque the header after a few hours of use to allow for the natural thermo expansion that happens.This will also save the header gasket and protect against leaks caused by gasket blow-out
Mark,
Nice write up. Alot of the same improvements that you mentioned (responsiveness, motor sound) were similiar to what I noticed with the Mugen. I would have loved to dynoed my car pre and post mods to put some numbers to my "observations".
08-16-2006, 08:25 PM
New toy installed
