markc0220k

meaning i 'llneed both front and rear O2? and yes, most ppl suggested catless UP is more safe for the turbo and it's on my buying list

that's more confused now, coz i saw Invidia up (for 2005-2009 legacy) has a bung but none on the Cobb's.

after 120+k milages, i decided to stage 2 it. i found some suggest to replace those O2 sensors as well, thats kinda make sense to me since they are already 120+k old, and i have to install new up/dp anyway.. then i searched the maintenance guide HERE, unfortunately its no longer working. but i found someone posted a diagram it shown the sensor that attached to the uppipe is temperature sensor. O2 sensors are one on the exhaust manifold and the second one sit "behind" the dp. so i'm confused now. shall i have a new temperature sensor too? but i couldnt find any info.. thanks

with stock headunit 5yrs, i decided to do on-board direct solder soon to bypass that "diff eq at diff vol" function.

so, which pink spring (parts no.?) are you using pls?

i think their xover is set inside the amp, coz front tweeters and woofers are run from diff harness. the stock HU itself basically isn't that bad, search around forum and you'll see someone who could bypass the loudless and improve the voltage of output! i personally found that "loudless" is pretty useful, it can protect my low range drivers and my ears ( coz i don't prefer lots of booming! ). mark

so we, who has 9spk HK sys, can actually remove the amp? mark

so what is that VSS for, if it's no matter they are connected or not? mark

HD is stiffer than spec b's bils? mark

it is because the stiffer springs? stiffer absorber? or both? mark

i think DGM = diamond gray metallic, but color code = DGR, "R" stands for... ? mark

beside, is bils HD = Spec b's oem bils? mark

anyone have pic please? actually i'm not mainly looking for lower-look. i 'd driven my miata (na8c) for 10+yrs, love its stock setting! i just did some upgrade - fm swaybar plus its lsd and that's all. mark

how about... mine came with bils absorber : (

KurtP, i did some search and some has asked about HR spring few times on this thread, seems like no one has HR springs? mark

do not totally "bypass" your oem amp (assuming you are talking the amp underneath the psg side seat), it (R316-B11) has wire it goes to your VDC/ ABS control module and GND. i'm doing the same thing like you too. but i'm going to only bypass those 4 outputs from HU (FL/FR, RL/RR). mark