Not sure if this is the right place to ask this but is it worth to buy the j35 IM Spacer (1.6" thick)? Kind of too late, I already ordered it....it was cheap though, with the 9 bolts $50 shipped. I would think that it would improve hp and torque with the mods I have. I/H/E/TB spacer/IM Thermal Gasket/ deleted cat/pulleys/Mugen Stat/fan switch

 

the 3Rd Gen TL Guys Have Before And After Dyno with That Spacer I Believe. Your Hood Won't Close Unless You Prop It Up Or Mill The spacer Down.