hmm..

4-2-1 = torque

4-1 = horsepower

rite?

Hehe sound depend on individual, some like vtec sound..some like bassy sound...for me i always admire boxer engine sound.

Ooooo...Persona really have good low torque to start with thanks to its iafm. Some more its stock condition using 15in tire sure hard to beat the starting acceleration. Unlike us we need to rev for power & produce torque.

ive been there..kena dgn persona but halfway i got my revenge . Next time if wanna play traffic light drag, try set rpm @ 3,500 or a lil lower 4,000 rpm then when the light goes green just dump the clutch & standby 2nd gear..but this depend on your tire coz better tire can hold high rpm as they will unlikely to spin much.

hehe tahu...power mmg increase bang..also the noise . Tapi tak kuat sgt..

Nope.

The difference about 4-2-1 & 4-1 header is about the power band. It should like this

4-2-1 = low - mid range power.

4-1 = mid - high range power.

I know there got graph shown how the power band spread. Try google or go to Mr drex fb.

Boxer engine sound is sounded bubble...

Oh i see..thx bro..
edi seen Mrdrex fb about this..
good info..

try brisk spark plug next. better than iridium.

want burble sound? can.. make ur extractor not equal length.. sure got burble..

Exhaust kena tuned length and size juga kot.....x kisah ler 4-1 ker 4-2-1.
Kawe dulu dah banyak kali swap setup. 4-2-1 town drive cantekkk.
4-1 dup dup dah sampai top speed.

Ajaibman - Exora M Line - WVPXXXX - Proton White - AT

Mod done :

Simota Drop in Air Filter
4-2-1 Tuned length Cap ayam Extractor
2 middle bullet muffler
S-flow back muffler
Adjustable Cam Pulley
LCP
FPR
EMS-1 Piggyback tuned by RS Dyno (Robyn)
Lowered Suspension Spring FGK
Rota Wheels

Now, tengah tabung for Sprintex

Thanks everyone for allowing my Peti Sejuk 2 pintu joined LYN CPS tribe

LOL hehe..

what best length and size for full exhaust include extractor, piping and muffler?

Super MPV...

Not super, just trying to overcome Proton fault when launching the "underpowered" CPS exora back in 2009

Oic..u need more torque to make ur pick-up less heavier..

sprintex will do...
much faster than cfe

welcum bro. have you dynoed? must have since install piggyback. what the power of you power exora.

Hi

Last tested 131 HP and 167 nm Torque.. too much power loss on the Auto Trans.. but now the power are more linear, much torque came earlier, CPS opened @ 2300 by adjust the timing advance using the ACP+Piggy

As if I remember . Setup was fix on old 4G18 NA mod. Custom header but the rest is Everco setup.
I have not start modding my Campro CPS but I noticed the exhaust setup is bigger.

Power output is decent for Campro CPS

if not using any piggy, can adjust the CPS activation rpm?

on wheel?
btw, welcome to the club bro

on Crank bro, thats why lot of losses in auto trans..

not bad ah. your exora power already
I was thinking of visiting rs . want to try their efr. But when they increase the price lost interest to do it.

Thanks, I am not using EFR but the normal Fuel Pressure Regulator from Tomei with the pressure gauge. its sufficient, and the cost not that high..

Now, the problem is the Auto Trans, tried the demo exora from proreka with Sprintex on it, the CPS really powerful but its the transmission is lethargic, since its the kebiri version of Mitsu InvecsII which proton took out the Steptronic features.