2LATEULOSE2

what size fernco do I need for my stock thottle body,with a slp lid?

WILWAXU

iTrader: (6)

3" - But, I do not recommend it.

Hmm.. you signature says "SLP LID smooth bellows" You replacing the SLP piece?

Lithium

iTrader: (47)

If you have the SLP bellows keep it. You could risk cracking your lid with the fernco...although its not common.

Uno99

iTrader: (2)

Just leave it out in the sun then trim the inside to a 45 degree angle. Makes it easier to slip over lid and TB.

vodas00ss

iTrader: (14)

i did the ferco mod , makes it tough to get the air lid on, even more so when you get an aftermarket air lid, i fear breaking the rear tabs off my lid. I am fixin to replace mine with an actual smooth bellow. but yeah , 3 inch.

99FBODY

iTrader: (8)

what is this mod that your talking about im so confused

LS1LUNATIC

iTrader: (3)

I bought a 3" fernco and I dont understand why everybody is scared of breaking something?? It slips nicely over the tb, and also slips over the maf housing? I'm using a granatelli maf housing if that makes a difference and a SLP lid? Just remember to trim the inside of the bellow to make it fit perfect. but its one of those mods that makes you wonder if you just wasted your time by putting a sewer pipe fitting on your LS1.