Reply to thread

See what others are reading now! Try Forums > Current Activity

Message: <blockquote data-quote="kweng84" data-source="post: 2736990" data-attributes="member: 21172">Hey bro, my own opinion would be for:4g91= 1.7"4g92(non-mivec)= 1.7" or 1.85"4g93 = 2" or 2.2" *piping size may varies depending on the mods u done with the engine.*piping size that i proposed is diameter of the piping*if you want to have better torque or uphill power, don't get bigger size if u have option becoz bigger size piping only shifts the power band at higher range which means rpm drop faster after gear shifts due to least of backpressuring (condition for NA engine with low mods)As for extractor, i would say it is good to change extractor. Nowadays, 4-2-1 has been a hybrid version which gives low end and high end benefits. But choosing the right one for your engine is kinda hard becoz piping bends and piping sizes differs in exhaust shops. Well, if the condition of the 4g9 series is good, why not use it? At least it comes stock with the engine. Stainless steel and galvanized steel differs at the quality and also the thickness. Performance wise i would say same. It is just the matter of the shiny looking. Sometimes, it produces different exhaust note. (hard to say)Always there is an argument on bullet and midbox. Well, i would say that bullet is much more likely for performance due to its straight flow shaping while midbox is a flatty type which gives restriction to the exhaust flow. Another thing is that the stock midbox always give some hollow noise due to non-fiber condition. It reduces noise by reflection while nowadays the midbox that u can buy is filled with fiber to absorb noises (not reflection). So, in conclusion, bullet is just better to have lesser restriction than a midbox and having no bullet/midbox in a system is NOT advisable due to a few factors.Hope you understand my 'grandpa' stories. Should you need any help, call me anytime, if i'm free, i will pick up..else :) CONTACT: Weng - 0125629713No problem bro. UGPM also!</blockquote>

Verification

The Marketplace Latest

Mitsubishi lancer Evo x front bumper
- Started by jeff6126
- Exterior and Body
Honda jazz fit gk flrs body kit
- Started by jeff6126
- Exterior and Body
Proton S70 body kit
- Started by jeff6126
- Exterior and Body
Proton saga BLM body kit
- Started by jeff6126
- Exterior and Body
Perodua bezza ~accident repair
- Started by jeff6126
- Exterior and Body
Mercedes Benz W205 C-class GT grille
- Started by jeff6126
- Exterior and Body
BMW E90 ~brake caliper spray ~rim spray
- Started by jeff6126
- Exterior and Body
Honda city gm6 FL front bumper
- Started by jeff6126
- Exterior and Body
original rare spec Rays Volk Racing RE30 15x7jj...
- Started by david tao
- Chassis and Wheels
original rare Rays Volk Racing TE37 SAGA S-Plus...
- Started by david tao
- Chassis and Wheels

Posts refresh every 5 minutes

injectors

Hey currently running standard injectors but need to up grade can any one tell me whats the best ones out there

upgrades so far are tomei turbo m7960. Tomei manifold. Tomei downpipe. Tomei fuel pump.tomei cams and...

Looking for ori evo456 ic piping

Hi
Looking only right hand side ic piping.Ori piping after ic that goes into throttle body.Need only front...anyone wanna sell it...thanks

Junk RX7 (FD3S) Wanted

I wnat to start my new project of building FD3S from scrach. I plan to use the car on the road and track.

I am looking for RX7 (FD3S) with NO engine. Or, RX7 with a screwed up engine.

So the ideal...