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Discussion Starter · #1 ·
I had the WR intake, Strup header, WR engine damper, and Strup exhaust installed. I did each separately so I can feel the difference. The intake was first, that made the car a bit louder but it pulls a little stronger than stock.. Id say maybe 1-2 hp increase at most. Then came the header, which didnt help much on the low end since its a 4 into 1 design, but mid to high end you can feel a little stronger on acceleration. Especially from say 60mph to about 80. The exhaust, since its a catback was a bit louder than stock, I would expect maybe another 2-3 hp increase there. I saw this huge submarine resonator in front of the exhaust, Im sure if I removed that I would see a huge increase in power but than it would be much louder as well. The engine damper vibrates a little but I did notice less hesitation between shifts on the auto trans, acceleration seems much smoother than stock.
 

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208 Posts
Discussion Starter · #3 ·
The problem with TRD stuff is that since the dealer sells it they have to completely CARB legal so therefore that reflects on how much flow and air performance products allow. I have a bunch of the TRD suspension stuff but chose to go another route for performance. Products like Weapon R, Fujita, Injen that make intakes for the Scions are much more free flowing then the TRD unit although I have to say the TRD is very well made. Same goes for the exhaust component of it. I have an auto so no need for the LSD there. One of the import mags recently did an install special, they put on an intake and a TRD muffler, got a total of about 3.2hp over stock. You will feel a little better pull, plus you can shift faster, so I think mostly it will be a mental thing over an actual performance thing. Every time I install something I always feel like its better, haha.
 
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