VandykeT/A

Right now I'm running a custom 3"' to 4" ORY with a FM merge, 4" I into a dynomax bullet, mandrel 4" over the axle, through a magnaflow bullet with a hidden turn down. Would it be worth the effort to try to fit dual cutouts right off the headers? Its a heads/cam/intake/SBE car, be worth a tenth maybe?

Blackpanther99

iTrader: (8)

A single cutout can do the job right after the Y-Pipe.

Sladester2

iTrader: (1)

I have a feeling you wouldnt like dual cutouts

VandykeT/A

Why wouldn't I like duals? to problematic, not enough room?

Raoul-Duke

iTrader: (6)

Dual cutouts are ok.

What you really want is QUADRUPLE CUTOUTS!!!!!!

dckmn52

Personally I think it isnt really worth it unless your upwards of 600hp. single 4" supports way more power than most people think it does.
I have single mandrel 4" on mine and it won't be changed when the LS7 goes in.

https://ls1tech.com/forums/2987587-post19.html

650ish hp. excuse me.

Blackpanther99

iTrader: (8)

Agreed^

thunderstruck507

iTrader: (18)

My car consistently picks up right at .1 and just over 1 mph at the track on back to back runs with dual cutouts open. Exhaust is 3" duals to Flowtech Terminator mufflers dumped at the axle.

Made 390rwhp converter unlocked with the cutouts closed, so it's not like it's a high HP combo. I am not sure how the numbers were derived in that link above but I don't buy it for a second.