If manufacturer's tools and machines are SOOOOOO accurate, why are Proton's so shoddily built eventhough they have the tech for a turbocharged engine right in their back yard? Why do manufacturers use cast iron 'inaccurate' manifold instead of tuned-length manifolds? Surely they had calculated that with a log-style cast iron manifold, the exhaust flow surely wouldn't be optimum since the pulses will clash with each other before reaching the turbine no? SURELY with their PRECISION CALCULATIONS they would've known the hoses they use to route the charged air from the turbo to the intercooler and to the throttle body will expand under boost and cause around 500rpm of turbo lag, why did they do that? Does it mean that the manufacturers had calculated turbo lag is actually good for the car?

What a bunch of modders that think those local modify workshop can come up with proper turbocharger that could generate optimum output, torque & FC? FYI, whatever those local modify workshops can do are limited to whatever custom kits they can bring in and tune from there. The piping are so badly done that they are not even as efficient as what car manufacturer can produce.

You can tune up the car to have more power but do not expect it to be as effective and efficient as those cars that come with turbocharger by default eg. Pug 508 1.6T, Mondeo 2.0T, BMW 2.0T, VW Passat 1.8T, etc. I call these cars that are sold with turbocharger well built with optimum efficiency. Optimum means able to focus on performance as well as FC & maintenance in long run.

Those owners who sent their non-turbo cars with NA engine to fit turbocharger at local modify workshops, those are nothing more than motorsport fun. In reality on FC saving or maintenance wise, they are nothing close to optimum.

Don't talk about Toyota, Honda turbocharger, they are not the best in this. You want to talk about efficient & optimum turbocharger, refer Ford, Pug, VW, BMW, Audi as these carmakers are more advanced in anyway. Japanese made are reliable but when comes to GDI engine, diesel engine, turbocharger/supercharger, NVH, handling and build quality, the conti are still ahead. Japanese made beat conti only in terms of sales, reliability & after sales service. They didn't beat conti in everything.

AMG, Alpina, TRD, Mugen, AMS, etc, they are at least something like licensed modders in cooperation with carmakers. Therefore, these mods are professionally done as they done proper calculation and those air intake, exhaust, etc were done specifically for the make/models that they are made for.

We are talking about those who pull piping and install turbocharger, exhaust on their own here. If they only get 1 or 2 parts from TRD but the piping for air intake and exhaust are made of dunno where they get material, this is where the problem comes.

This is for those who still wanted to argue about ori Lancer GT '07-12 vs Inspira:
None of you bunch can tell the difference on the kerb weight Lancer GT 1385kg
compared to Inspira 16" rim 1335kg while with Inspira 17" rim + bodykit only at 1350kg. THis is not obvious enough on the difference. Stop taking the downgraded GT on website to compare. Who is the troll, you bunch ofcourse that rely so much on website. MMC technical department already hinted where the difference. If you bunch still unhappy and wanted to clarify further, check with MMC technical department. Why so afraid to check with them?

Whatever these franchised licensed modders do, the technical part especially the whole intake parts and exhaust parts that they fitted replacing the ori stock carmakers parts, the pressure, the piping, etc are carefully done. Local modshop, if they have the actual spec for modding specific make/model eg. Lancer and get the parts that are meant for modding Lancer, it will not go wrong.

However, those who get few renowned mod parts and do piping, etc, mix around with whatever mod part they can think of, too obsessed with Fast & Furious, that'll end up harming the engine. Customers who done with them are doing at own risk.