Automatic Transmission Exhaust Info

[mskurniasyuti]

Which muffler type best suits automatic cars?

S-flow? N1? :hmmmm:
Also, how do aftermarket exhaust systems (e.g. HKS, Apexi, J's Racing) do for auto cars? Are they all for manual? :hmmmm:

Share your experience on exhaust for auto cars :D

 

[kumar22mostwanted]

bro from what i know for auto the best is s-flow coz we need more back pressure than manual cars
if guna straight pick up gone
my car also auto using s-flow

 

[mskurniasyuti]

bro from what i know for auto the best is s-flow coz we need more back pressure than manual cars
if guna straight pick up gone
my car also auto using s-flow

Thats why ah bro, cos i using straight pipe. Pick up like sh*t but sounds nice hahaha. I guess Sflow is the way to go ;)

 

[kumar22mostwanted]

Thats why ah bro, cos i using straight pipe. Pick up like sh*t but sounds nice hahaha. I guess Sflow is the way to go ;)

yeah bro the pick up will be totally crap with straight flow and also depends on the diameter of ur exhaust piping like i said auto u really need back pressure to survive
of course the sound will be nice but it will really makan petrol also coz u will need to tekan extra to move
plus more back pressure means more pickup and thats whats most important for city driving i assume u do mostlly city driving coz ur car is auto

 

[fatbusterd]

my auto pipe is od 2'',middle bullet,s flow terbelit2....planning to chnge my middle box to a bttr 1...

 

[neohadri]

more backpressure means more pickup? doesn't sound right

 

[mskurniasyuti]

Sayang most cool mufflers like HKS, apexi, fujitsubo are all straight piped arent they? or there are sflow mufflers from them? Anybody know? 0.0

 

[kumar22mostwanted]

more backpressure means more pickup? doesn't sound right

yeah bro from what i think if u have more back pressure ur lower and middle end will be better but ur top end will sufer im not 101% sure so u might have to refer to the sifus in these forums or do some searching through these forums urslef

 

[aidilaidilaidil]

auto cars also can use straight flow. there are no such thing as auto cars must use s-flow. it's only recommendation for auto cars to use s-flow. if u do the mod right...then there's no problem to change to straight flow.

for auto transmission, just change the exhaust only. don't remove the catcon, bullet, etc. the catcon will maintain the backpressure that's needed for your auto car. u might feel ur pickup decrease but it's just a little bit only...u need a very sensitive sense to notice the difference. even i until now can't feel the difference after changing my exhaust from s-flow to straight flow.

 

[upontheriversky]

aidil u used straight flow instead of sflow, when u say if u do the mod right, then no problem using straight flow, what do u mean by it?how the vroom sound like?

 

[aidilaidilaidil]

aidil u used straight flow instead of sflow, when u say if u do the mod right, then no problem using straight flow, what do u mean by it?how the vroom sound like?

yes..i used straight flow. what i meant was for auto car..just change the muffler and don't decat. if u just change this and that but doesn't know the pros and cons by doing the mods, then u might end up with a bad performance car. u can see it on a lot of wira's which sound very loud but runs like a snail. haha. just do a research on the parts that u want to mod first.

my straight flow is not loud at all. will roar a bit when revving and when the speed reaches around 100km/j...it's quiet. if u have the budget...get a reputable straight flow which has a very good sound at certain speed.

 

[upontheriversky]

yes..i used straight flow. what i meant was for auto car..just change the muffler and don't decat. if u just change this and that but doesn't know the pros and cons by doing the mods, then u might end up with a bad performance car. u can see it on a lot of wira's which sound very loud but runs like a snail. haha. just do a research on the parts that u want to mod first.

my straight flow is not loud at all. will roar a bit when revving and when the speed reaches around 100km/j...it's quiet. if u have the budget...get a reputable straight flow which has a very good sound at certain speed.

thanks for that info bro. lai exhaust centre suggested to use 4-1 extractor,bullet n muffler with 1.6 piping. he drives jazz as well and he said it worked for him when commonly ppl say 4-2-1 suitable for auto car. thats when i got confused coz exhaust mod is bloody subjective. probly need to sit down whole day and look at how the bengkel2 dudes suggest on exhaust upgrades for their customers then we know whats probly right haha

 

[lkc]

or maybe the best is dun change the exhaust system,let it remain ori then no headache lor...hehe

 

[upontheriversky]

or maybe the best is dun change the exhaust system,let it remain ori then no headache lor...hehe

bro thats the safest answer ive heard so far, dunno y i got twisted over replacing exhaust system in the 1st place.too much reading and knowing things can give u burden of knowledge hahaha

 

[rex79gt]

maybe add a silencer at exhaust tip will help?