anybody have the greddy smic, used the stock duct first, then switched to making your own duct, if so any noticeable improvement? i'm going to put in a greddy smic soon, curious if it's worth the effort to make/get a duct. i don't plan on running that much boost, so i'm thinking for me it won't really matter, but maybe someone can tell me otherwise.

thanks

 

When I installed the Greddy unit, I didn't like the way it mated to the stock duct. There was about a 1/2" gap between where the IC naturally rested (pipes attached and bolted down) and the stock duct. The IC really does need air forced THROUGH it, so having a duct that seals around the IC is important, IMO. I ended up getting the Pettit duct and cutting/sanding it to fit with some thermal tape.

 

Check with Batman, I think he's got the Greddy SMIC, but I dunno about his pipes.