Scion tC Dyno Test:
AEM CAI and Dezod Motorsports Header

Back in July or August we grabbed my neighbour Mike’s 2011 Scion tC2 so we could upgrade the intake to an AEM performance air intake and a Dezod Motorsports Red header. You may remember Mike’s tC from a wheel, tire and suspension upgrade story we did with it, along with a little track test video, and we really wanted to keep on helping Mike build his tC, but life has a way of intervening sometimes. More on that in a bit.


Once we arrived at Make It Shine, our favourite detailer and paint correction expert in the Greater Toronto Area, we helped Sasha from OnPoint Dyno unload and setup his portable Dynapack dyno setup so we could do a quick baseline test of the tC.


After doing a few runs on the dyno, the best result we could get was a somewhat disapointing 123.5-whp at 5600 RPM and 127-wtq at 4700 RPM. Typcially the 2AR-FE engine, rated at 180-hp from the factory, does a fair bit better than this in dyno testing, but it’s important to keep in mind that Mike’s tC has an automatic transmission and this robs a lot more power at the wheels (or the hubs, in the case of a Dynapack) than a manual gearbox, plus we know from past experience that the OnPoint Dynapack reads quite conservatively on lower powered cars. In any case, this gave us our baseline, which includes the World Racing Descendant cat-back exhaust system Mike had previously installed.


From there we backed the car out of the shop (so Sasha could dyno test our ASS2000), where Ken and I worked on removing the factory intake and exahaust manifold.


As you can tell, Ken was thrilled to be working on Mike’s Scion in the blazing sun right next to a trash-filled dumpster. Stay classy, my friend!


For starters we pulled the OE header so we could install this bad boy, Dezod’s Red Header.


As you can see, it’s not red in colour (on the right; OE catted header on the left), but rather in name only since it deletes the catalytic converter. Dezod’s Green header has a built-in high-flow cat. Green for eco-friendly, Red for not-so-much. You get the idea.


As you can see from the tag, it’s made of stainless steel, has 1-1/2” primaries that gather in a nice merge collector and then into a 2-1/2” downpipe that connects to the cat-back exhaust system using the OE donut gasket and bolts (we ordered a new gasket and bolts from Dezod with the header just to be on the safe side).


We also ordered this Vibrant Performance J-style oxygen sensor restrictor fitting from Dezod’s website. This moves the o2 sensor back out of the exhaust flow enough that it won’t throw a check engine light. For any of you shop owners or business owners out there who want wholesale pricing on Vibrant and AEM parts along with a massive lineup of other top quality go-fast goodies, Turn14 Distribution has what you need.


Ken’s good mood continued while removing the stock header.


He did seem a fair bit more cheerful while installing the Dezod Red header, though.

Scion-tC-Dezod-AEM-54 Scion-tC-Dezod-AEM-56

Maybe it was the sexy stainless steel construction, or just the overall excellent fitment that made him happy. Either way, we’re grateful for the mood improvement.


He celebrated the successful header install by showing off his new hipster summer scarf. Available with every purchase of a Dezod header. Maybe.

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7 Comments on "Scion tC Dyno Test:
AEM CAI and Dezod Motorsports Header"

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This is so crazy. Speed Academy is one of my favorite channels on YouTube (I’m doctorlobsteroctopus, you may see me spamming your channel comments with my excitement haha) and I actually stumbled upon your channel right after purchasing my 2013 TC and seeing your video at the track with this car. Then, today I am quite literally looking up unichips and headers performance on these cars and I saw this article shared on Facebook and then got to the site and realized it was from you guys. I’ve done a full loop with stumbling upon you guys and your info… Read more »

DavidBruner hey doc-lob-oct! Good to see you on here, and glad this story came in handy for you. The Dezod header definitely delivered on power. And we’ll definitely do a follow up story (and dyno video) on the Unichip and then a track test to see how much faster we can go with more power. Probalby going to do a tire upgrade too, maybe Bridgestone RE71R since those are apparently crazy fast and we haven’t tried them yet.


DavidPratte Yeah, I’m loving these write ups! The site is very attractive too, definitely a great setup. I can’t wait to see the unichip, I’m staying closely “tuned!” I’m looking to do a lot of these mods myself, so this will be perfect. And would you happen to know what lip/splitter combo he is running? It looks great, and I’d love to add one to my car.


DavidBruner DavidPratte I’m not sure what lip and splitter he’s running, but I’ve asked Mike to reply here so that you’ve got that info.


DavidPratte You rock, Dave! Thanks for always keeping it real with the fans and responding to us.


DavidBruner DavidPratte that’s my job! LOL. Mike can’t login to comment on his cell phone, but the lip/splitter combo is from a company called NIA Auto Design.  Hope that helps!


DavidPratte Well it’s why you guys will have a lasting and successful channel, just have to keep on growing! 

Didn’t realize that was an NIA lip/splitter combo, it looks different in these photos than the ones i’ve seen..or I’ve lost it. Probably that. Thanks again Dave, hopefully I’ll be picking these up soon!