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Found 1 result

  1. Quickclicknick

    TRD Air intake review

    Hello All, By way of introduction, my car is a 2014 BRZ that I have owned from new. The recorded mileage is now circa 11K miles. Very soon after buying the car I set about removing the noise generator gubbins on the intake. Conceptually it just didn't sit right with me. The manufacturer obviously wanted to keep the drive-by dB as low as possible but give the driver some semblance of drama at larger throttle openings. I can deal with fake side vents but not with fake engine noise. Then about 6 months ago I fitted a Mishimoto intake hose. This tidied up the engine bay and made things a little smoother but made no discernible difference in actual performance. The hose itself has no corrugation and the negative effect of this stiffness is a tendency to pull the air filer box away from the seal connecting it to the intake snorkel. After much umming and arring and reading and re-reading long threads on the US forums I ordered a TRD branded 'Genuine Toyota (PTR03-18130) Air Intake System' for a princely $369.99 from a vendor on eBay. It took a couple of weeks to arrive and came complete with every clip and cable tie. Installation was a cinch and at the end I felt that I had just gone and bought an OEM part and fitted it. The first impression was that it made a new and different noise, at part throttle just after 2K RPM there is a slight presence that wasn't there before. Not loud just new. I drove it out and warmed it up and gave it a few bootfuls and was utterly dissapointed. The car made more noise at high revs but didn't seem to pull any better, maybe it was actually worse in the flat spot zone. I came home and re-read the instructions just to review and realised that they specifically ask you to disconnect the battery negative. Something I had ignored. That set me thing about ECU learning and so I did a bunch of research about short term / long term fuel trims. After realising that the new intake had probably had the immediate effect of making the motor run leaner I drove it sensibly 'just in case'. The next morning (Sunday) I got up early and drove it conservatively all over Essex and Hertfordshire. Then bit by bit I noticed it surprising me in a very positive way. Part throttle pulls in 3rd and 4th from 4K upwards were noticeably stronger. I bought a Bluetooth dongle 'Android Torque Car Mini ELM327 EXCEL' for £7.95 off eBay and installed Torque on my phone and set it up to look at fuel trims. The following Sunday morning I repeated my long drive, checking the fuel trims to see how it was behaving. All good. By now the car was impressing me more than it ever has before. Actual peak power increase may not be significantly more but virtually everywhere else it is up. From 4K to 5K in particular the car really is transformed. Yesterday I drove nearly 400 miles on 'A' and 'B'' roads. From London to Oxford to Cardiff and up across Brecon Beacons before looping back east through the bottom of Shropshire. I discovered places like Fish Hill on the A44 (a public Hill Climb with 25-30Mph advisory for the bends!), Shelsley Walsh and Chipping Norton! The car is a peach! I am not one to post much on forums but just had to share. This modification should have been OEM and made by the manufacturer. S2000s have a good intake system out of the box so why not us. I have no idea what the car would show on a dyno or whether now it has this mod it would benefit a re-flash tune. All I can say it that the flat spot is all but gone and it pulls stronger and is much more responsive on the throttle. It makes dashing between apexes in 4th much more involving and overtaking is more confident. It no longer feels flat. Entering a motorway pulling moderately (changing up at around 5K) in 3rd and then 4th using part throttle is where the biggest gains are. If anyone would like a demo of a bone stock BRZ with a TRD intake I am in Essex. Happy Days! Nick
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