GN transplanted engine exhaust question

[transam_kahuna]

I want to do a '87 Gn complete engine/trans transplant (out of a wrecked car) into an older firebird..my question is exhaust related..specifically: I have room under the car for 2-3 inch exhaust..what were the GN engines engineered for? Is bigger truly better for a GN exhaust ..do they need the basic restrictions (catalytic,single to dual) or will it respond favorably to a real free flow exhaust? Thanks for any info/help...ED

 

[blackbird]

trans national!!

ive seen Gns with 3" exhaust no cat no mufflers. im pretty sure you can do the same even though the car is different

 

[blackbird]

SEMPER FI!!

 

[transam_kahuna]

Transplant Gn engine question

Thanks Blackbird! SEMPER FI!! ED

 

[87gninpa]

You can put whatever exhaust you want under the car, however i think youd have to worry more about the downpipe, or is it the same style as the TTA? then i guess you wouldnt have a problem