FMIC Intercooler piping question?

[6-Banger]

I have a TE-44 with the small garrett exhaust housing, also I recently purchased a FMIC from ebay. I have the intercooler mounted and wanted to know what size of piping should I go with 2.5" or 3"? The intercooler has a 3" inlet and outlet,but I still have my factory D5 convertor. I may eventually go with a bigger turbo, but not for awhile. Will there be a big difference in turbo lag between the 2.5 and the 3" piping? How much more turbo lag will I realize just from the change from the stock intercooler to the FMIC?

 

[nonosv6]

go with 3" so you won't have to do it again later... bigger pipes less restiction cooler air...

 

[6-Banger]

That's what I was thinking, but I am worried about losing streetability due to excessive turbo lag.

 

[ijames]

You will never notice the difference in lag between 2.5 and 3" piping so go 3" now. I couldn't tell a difference in lag between a stock big neck ic and a V2 frontmount with 2.5" pipes with a te34 which is smaller than your 44, and again with a pt54 when I changed from 2.5 to 3" pipes.

 

[6-Banger]

Thanks for the input!