the sensor is located on exhaust manifold, u should see it once u remove the heat shield..

change to 4-2-1, 4-1 only suitable if u always drive at high RPM i.e over 4.5K RPM...

is the 'lag' only appear after u mod ur exhaust?, because normal campro is known to have slow response

no engine check light warning?

running without o2 sensor will make ur engine always running rich

rich = fuel mixture is higher than air, that's y ur engine chocking,

zzz the engine warning light becoz it not receive any signal for O2 sensor loh

going for SS or mild steel, if SS dont wrap la, if mild steel then go wrap as much as u want

SS has low thermal conductivity, but high thermal expansion compared to mild steel,

so it's transfer less heat to engine bay but expand more which mean if u wrap em, they will hard to expand & become more prone to crack yada yada yada, fak it,

the only reason why i didn't wrap mine bcoz afraid of rust on weld joint only

heat issue ah, of coz compared to ur stock exhaust manifold, there will be more heat, but nothing serious if ur new ext. not touching any other part i.e radiator , hose etc..


u get ur supersirket from H performance motorsport ah? becoz last time i heard they screw up one FD2R during ext. installation

^^ if u read the whole page, i'm sure u will find the answer to ur question

be aware if u buy muffler from chop shop, most if not all have very little sound absorbing material left, ie fiber habis,

there's different between s-flow & straight flow, and it's not just in sound, however it still depend on how the muffler are made

ayam kenot brain need charger?