.: Exhaust Modification Corner :.

[DanzEterna]

Yeah bro, got the insurance money, really miss my perdana :(
yeah its an a33

a33 which 1 ah? brougham ah?

 

[neohadri]

hi im ardi, i wanna ask all the expert here about exhaust la, i'm thinking to remove the catcon and replace with the 4.2.1 header only and remain the stock center bullet and rear mufller(2009 persona AT)
is it ok or any suggestion ?

just more noise only, but pickup will improve

 

[Rleo6965]

hi im ardi, i wanna ask all the expert here about exhaust la, i'm thinking to remove the catcon and replace with the 4.2.1 header only and remain the stock center bullet and rear mufller(2009 persona AT)
is it ok or any suggestion ?

Much better if you Thermal wraped the new header. Personally check if header plate holes was properly aligned with your cylinder exhaust port. You will experience engine vibration and low performance if header plate holes were misaligned .

Below pictures of holes portions needed to be grind off. Our famous muffler work shop here in Quezon City have a very poor job. I have to repair the header myself. I have to grind off excess portion until it match the exhaust metal gasket.

 

[vr2turbo]

a33 which 1 ah? brougham ah?

His he mention 2.0 so it is the Excimo....

 

[hex999]

His he mention 2.0 so it is the Excimo....

yeap exactly, underpowered :D

 

[adlrunner5]

speaking about more noise ha, it came from exhaust sound or what ?:hmmmm2: btw thanx for the useful info

 

[adlrunner5]

Much better if you Thermal wraped the new header. Personally check if header plate holes was properly aligned with your cylinder exhaust port. You will experience engine vibration and low performance if header plate holes were misaligned .

Below pictures of holes portions needed to be grind off. Our famous muffler work shop here in Quezon City have a very poor job. I have to repair the header myself. I have to grind off excess portion until it match the exhaust metal gasket.

dont go to that shop anymore, thanks for the useful tips

---------- Post added at 01:33 PM ---------- 6 hour anti-bump limit - Previous post was at 01:31 PM ----------

just more noise only, but pickup will improve

speaking about more noise ha, it came from exhaust sound or what ? btw thanx for the useful info

 

[neohadri]

speaking about more noise ha, it came from exhaust sound or what ?:hmmmm2: btw thanx for the useful info

because no cat con to help muffled the noise

 

[vr2turbo]

because no cat con to help muffled the noise

If still have center and rear muffler, sound should not be much more....

 

[Rleo6965]

I think sound or noise should still be the same even without the Catalytic converter. Center and rear muffler will take care of the sound. Just recently enjoyed the fc and performance improvement after I repair my header. It took me 3 years to find out the defective job.

 

[Unsacred8002]

ITR 96 4-2-1, 2" pipe, mid bullet and RS-R Magic muffler.

 

[neohadri]

If still have center and rear muffler, sound should not be much more....

I think sound or noise should still be the same even without the Catalytic converter. Center and rear muffler will take care of the sound. Just recently enjoyed the fc and performance improvement after I repair my header. It took me 3 years to find out the defective job.

most car with cat con delete have increase exhaust drone so for me exhaust drone can be consider as noise

 

[JGanne]

Guys,

S-Flow muffler recommendation for civic fd2 2.0? :)

 

[dannybboy87]

hi ... members ...

Dun mind asking something here ... ? Toyota Corolla SEG 1.6 AE111 (1996 model) manual i plan to modify to straight flow exhaust inlet 2inch ... tip 3.5inch (with silencer) ... original piping size ... retain (keeping) center bullet and cat ... is this setup ok? So if in the case of Straight flow muffler ... use with silencer or without silencer is better? will affect performance o not?

TQ ...

 

[ddv_nk12]

Why does the same exhaust sound differently/louder or 2 different cars? What are the other things that affect it besides being different cars? Piping size? Type of engine? With/without silencer/cat con/resonator?

 

[kazukimy]

Why does the same exhaust sound differently/louder or 2 different cars? What are the other things that affect it besides being different cars? Piping size? Type of engine? With/without silencer/cat con/resonator?

workmanship, piping route (including 'degree of bending), type of material used for the piping...

 

[k0pi]

help. advice needed on replacing extractor on my 4g92 sohc.
last night car bumped onto road kerb and my extractor has a very bad bottlenecking dent.
have to opt for aftermarket off the shelf extractor to replace...

am curious with the 'cusco styled' 92mivec 4-2-1, issit any good? Or are there any other xtractor I should consider?

 

[kweng84]

Dear All, very sorry for being inactive. So what's cooking there guys?!

 

[zack.my]

hye to all fellow and sifu here...
need advise and opinion from u all..
think want to upgrade Exhaust system..current standard from factory..
just change big tip for good boy look :ciao:

4b10 inspira manual trany..
with stock engine...just change k&n drop in filter..and ecu remap (auto lock,delate cut off, gear tuning to more pick up and top speed)
currently if drive 100kmh with air cond with 4 adult person inside. can get 15 to 16km/l ..

standart inspira piping is 1.8" right?so want to keep this size or use 2"?
since this car so heavy..want to set increase pick up...and keep current top speed..but if can get pick up and top speed much better

i read in the net...forget already where i read..for Exhaust Modification most important side is extractor/header if wrong
bend/size/diameter/cutting blabla can spoil car performance..not just performance...engine also can spoil..
so i want to know..may if have to buy header from highend shop like supercircuit/hotbit/ anything else? or just buy it from normal Exhaust shop like wei yip etc? its same cutting? how about material?stanlesstell got many gred right? 1 more thing i curious is welding job.. we dont know if got small leak or hole...if radiator got leaking even small ..we all know coz got coolant drop..

so any sifu can guide me?..newbie here
owh ya my budget around 2k++

 

[KenDiriwan]

Since you have good budget there, i suggest look for a good workmanship and had it custom. From header > whole system > .

As for pipe inlet diameter, it depends on your displacement. 1.8L best go for 2.5inch, 2.0L somewhere between 2.5inch-3.0inch. Maintain the mid section with a 15inch long bullet, as for end muffler depends on yourself of s-flow or straight.

There are lot's of good shop out there, don't go to Wei Yip/Kaki exhaust.

1. Exss Work, Danau Kota
2. GT Exhaust, Puchong near Ioi Tesco
3. Ijal Exhaust, Batu Caves
4. KW Exhaust, Kampung Subang

Personally i have seen works of GT Exhaust and KW Exhaust, their custom job is magnificient. When you see an exhaust shop doing piping for a serious track car, you'll know they have certain level of workmanship. Some of them has fanpage on fb you might look up.