LS3 Intake on Cath Port Heads With Adapters! The LS3 intake is arguably the best factory GM intake ever made, but does it work with cath-rec port adapters used for LSA blower installs? Anyone else ever tried or tested this? The answer is it will bolt on, but the LS3 intake with adapters makes less power (by 18 hp) than just running a TBSS or Dorman LS2. I wanted this to work so bad back in 2018 when I tested it, but it just didn’t pan out. Get a cath port intake! Make sure to check out the sales

1.3K views · 27 reactions | This 2012 C6 6 speed manual LS3 powered Corvette hit the rollers today! The result was 478 WHP and 450 FT/LBS through stock unported or milled heads, intake, throttle body, and 2.5” cat back exhaust! Mods: -MMX Custom LS3 Camshaft Grind -MMX Custom tune -BTR .660 Valve Spring Kit -BTR LS7 Lifters -BTR 3 bolt Cam Gear Conversion -MMX .080W pushrods -BTR Trunion Upgrade -Speed Engineering Long Tube Headers -K&N CAI | Modern Muscle Xtreme | Facebook