3" straight pipe- gains from 4"?

[SCHMITTY]

Would I gain much power from switching to an aftermarket 4" straight pipe ? I have done the afc mods, 16.5 timing, 215 injectors, 026 dv's, no plate, bhaf, 4k springs/valve springs, rack plug, drilled the divider on my wh1c. I found some deals on mbrp turbo back exhaust but I may just buy a 4" down pipe and make the rest myself. Any suggestions?

 

[Mr.T]

The only thing you'll gain is a 1" bigger exhaust

 

[SCHMITTY]

Good to know. Well I'll wait until I get a larger turbo before upgrading exhaust. Thanks

 

[Limited]

The only thing you'll gain is a 1" bigger exhaust

Thats not true. You'll also gain a few extra pounds oke: