Yes im pretty sure there is another aftermarket, but it sucks. Real bad. From what ive heard. Plus the TRD lets you keep your warranty. If you just wanted the 220 or 230 whp then go with the s/c if you want your 250-270 go turbo.
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Next Mods: 9.5psi pulley(waiting to install), Forge 007 BPV, Boost, Wideband, and oil Pres. gauges, Stage 2 Cams, AEM F/IC and tune
300whp here I come 
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