96ta

whats the difference between the lt headers 1 3/4 and 1 7/8 is it just a difference in the flange thickness? second question if i get kooks lt will it mount to the kooks hiflow y pipe i was reading the faq sticky about induction and exhaust and it was saying from what i gathered if i had a y pipe i couldnt have lts so thats why i ask.

ls1muscle

iTrader: (16)

1 3/4 is what you need, and yes the kooks y pipe will work with kooks lt's.

TheBlurLS1

iTrader: (8)

The size refers to the diameter of the primary tubes leaving each cylinder. Most LT companies have their own y-pipes, and they fit best with their respective headers. Kooks stuff is VERY nice.

1-3/4 is what 95% of people get, and offer plenty of flow for whatever power you make. 1-7/8 are usually only used on strokers, max effort H/C motors, or supercharged stuff.

dpw41285

iTrader: (26)

maybe the faq needs cleared up if this is the general understanding after reading it

96ta

thanks for the info guys