Drop me a sms, thanks.

boss,

Im using mitsubishi tredia (old car) i think its about time to change the extractor and the exhaust pipe as it has been rusty already. how much does it cost ya? May i know where is ur shop location at puchong?

Thanks.

already sms but no reply..

Sorry busy and checking stock for u. No extra silencer bro, new batch all without silencer as the muffler itself is quiet bass (not ah beng vroom). Thanks for ur interest anyway

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Added on May 1, 2011, 9:53 amHappy Labour Day!

We are open today from 11am-6pm. Please call for appointment:

Best Regards,
K.Weng aka kweng84
012 - 562 9713
016 - 346 2636
MSN/EMAIL: monza.exhaust@hotmail.com
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*We Open Everyday include Public Holidays*
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This post has been edited by kweng84: May 1 2011, 09:53 AM

Hi there,

I drive a wira 1.3 manual aeroback year 2003. I am using a standard system at the moment. Planning to have it upgraded to get extra power and performance.

Please advise what will be the best upgrade within a suitable price range. From the engine straight to the end.

let me know also how long will it take.

thanks .. pm me the details pls.

This has been very exhausting experimentng for a solution for my MYVI 1,3 Auto tranny Exhaust Solution.
I have purchased from a friend HotBits 4 to 1 Extractor which was fitted nicely to replace the stock extractor.

At Beginning the Extractor mod alone has brought in large difference in pickup for my Auto Myvio but still the power seem to be blocked and rpm is high before
actual power is felt and delivered..

I contacted Kweng for his recomendation according to my Budget..

I informed hin that my Issue was low to mid power restriction/loss due to the stock bullet and s-mufler.
He initially recommended that i only change the S-Mufler . I head myself to GT Racing Workshop in puchong to try to solve my issue.

After Meeting his mechanic in Puchong .. the Mech spent a lengthy time to explain his experienced on modding a Myvi 1.3Auto.
According to this Mechanic I need to change my hole front piping from the stock 1.6" to 2" and rathwer then changing the stock S-Mufler only change the Bullet.
They developed a Bullet Design to solve the "kick Back Effect " which was originally delivered by the CatCon.

This Cat Con apparently according to the mechanic not only is used to absorb harmful gas but also utilise by the car to push the low-mid range rpm that was needed
that was lost during Auto Transmission.

The Solution was to take a 12" Straight Flow Bullet and put in a slighly smaller pipe maybe 2-3" in length and fit it into the inner diameter of the Bullet. This smaller full pipe will block some of the perforated holes that exist inner side of the bullet. This somehow will create a "Kick Back" effect similar like the Cat Con.

The second stage was to replace the 1.6" stock pipe right from the joint of the Extractor to the Bullet itself. This will be end to end 2" pipe.
I was trully confident and the skill that the mechanic has. He seems to know what his doing since he mentioned he has done this method for lots of auto Myvi.

The Job was done. Now time for testing...[I]

I noticed the following..

After Changing the pipe from 1.6" to 2" the sluggish effect still exist and now the power band which exist before the mod has now decreased. Before the powerband starts from 2K up to 6K . Powerband now onlly starts actual at 3K to 6K. This somewhat produce the Screaming effect. Which is audible from the 12" bullet Mod. I really have to push the peadl to ensure that power is delivered. The power is not as effecient as before..

I have tried to contact Kweng on this issue it seems he is busy even to answer my SMS. I want to make it clear that.. if the Issue was the upgrade to 2" piping please confirm it here. As the workshop insist that the piping be changed. Since the mod i have extensively read Lowyat and Zeroto100 forum and most thread mentioned for Auto Tranny it is not adviseable to change to a bigger diameter piping. This will in turn increaseFc and makes the car feels like it is struggling to be pushed.


I am confused regarding the conflicting solution that the Mechanic and Kweng offered. I think my issue can be solved by fitting back the old 1.6" piping to the new bullet or better to change to the new 1.6" piping if the cost is not reimbursable.. but i need a solutin asap.

I know Kweng has good reputation in Lowyat interms of exhaust . I hope Kweng you can answer this issue asap.

JOe

This post has been edited by mizzdelina: May 6 2011, 06:45 AM

Hi Joe, sorry that I'm busy n miss out ur sms, I will look into it n hope you can give me sometime as I've something on hand to settle first. Thanks for your comments n I will let u know a solution asap.

-Weng

Thanks bro. i be patient n wait.. Since the exhaust mod I have reset the ECU as you suggested earlier.

Findings:

Car runs superbly Optimum performance during the day (HOT Day) but opposite Night. Also FC has increase tremendously since the Exhaust MODS.. Im avergaing about Rm65 @ max 270KM/L ..so thats 4Km per 1 Litre of RON 95 ( FAST HANTU DRIVING)

Let me know what could be the issue..

Is it imperitive we change the S-Muffler ? Top Speed now stagnant at 160Km/h. The ECU is learning fast too compensate for the change in powerband that the piping has caused..but sadly this is done at a cost of more Fuel. I really think changing back the piping to 1.6" is the key.. I dont think the bullet mod help much.. maybe a swirl Bullet and an s-muffler with dual pipe output could do the trick here.

Maybe you could refer to the customer Auto Database for eg on solutions. As mentioned i prefer low and mid power with compensation of top speed..i think at current 160KM/h its reasonable .. just need to tweak the setup as to not each so much FC..

Also i saw my rpm drop after the exhaust mod..maybe round +/- 200rpm

FYI my MODS

APM Performax Springs
600C Racing Brake Pads
Alloy Lightened Pulley
16" Advanti Racing Alloy RIMS + Archilles 205/45/16
Pivot MegaRaizin Purple
HKS Electric King Earth
HKS grouding Cables
Bosch Iridium Plugs
Blitz Drop In Air Filter

Bro do you have Satria 1.3 stock extractor and how much? PM me

Hi kweng84, currently my swift auto setup 4-2-1, stock mid pipe and straight muffler(HKS silent hi-power) is quite noisy. wanna change mid pipe any suggestion on mid pipe? to reduce the noise and back pressure ya.

mizzdelina, for a 1.3 auto car max diameter of the piping should not exceed 1.7".. 2.0" is too big and of course will result on power loss, low pickup. u need to change back to smaller diameter of piping and use S-Flow muffler.. just my advice.. thx.

I'm a beginner here, I'm driving a new persona and just accidentally broke my pipe and simply burn a caplang one...and now the caplang one seems so ugly...planning to change a new one..
Got any pipe for me? I don't want too noisy..normal sound like the saga sport type that comes with cool pipe..

I am a new member to this forum too. I need help from sifu to advise me to resolve my Kancil exhaust problem which I suspected blockage. My 1998 Kancil 660 Auto fuel consumption getting higher and power loss. The RPM is very erratic and I have went through many tuning center but did not solve the problem. Your kind advise is highly appreciated.

how bout satria neo 1.6 manual.. the best piping diameter should be 1.6"/1.8"/2.0"?

bro, i'm using satria neo cps manual...
previously, i installed a catback system (1 bullet, s-flow muffler, about 2.0" piping) and use it with my stock extractor....the sound produced is really nice and bassy...
but right after i changed my stock extractor to 4-1 from hotbits, the nice sound gone already...it became really loud and buzzing too (like ahbeng's)...
can u suggest me anything i can do to make the buzzing sound go away?? and perhaps minimize the loudness too...really need help~

This post has been edited by responsibleroy: May 14 2011, 03:45 AM

Check your inbox bro, no reply from you yet, thanks.

I humbly suggest you drop by my shop and let us have a check on your exhaust system, do call me.

Do call me for the full system advice, thanks.

That must be annoying bro. Drop by my place, we need to listen to that 'buzzing' 'loudness' sound you've meant. Call me, thanks.

please advice recommended Exhaust System for my IDSI '08.. Currently is still in stock unit. Wanna get more power Exhaust System with no noisy "VROOM VROOOM" sound and will have better fuel comsumption. Thanks in advanced.

Hi Kweng,

I have close to zero knowledge regards to exhaust, but i'm looking at means to help to improve my pickup and fuel consumption without losing power..not forgetting to minus the loud sound emitted..

My car model is persona elegance still using the stock exhaust.

Thanks in advance for your recommendation

hi there bro kweng, i need a quotation of price for my proton gen2 with campro engine. I'm need a price for 2.3 inch piping after the flexible pipe + 1 bullet until the end.I got my own muffler.How much would it cost me for both stainless steel and mild steel?quote me both price..piping size no smaller than 2.3 inch plz...

weng i Pmed you d, Reply me as soon as you read it XD