GT4 Exhorst size

[GT4PWA]

HI there,

Exhorst sizing for my 1990 GT4, after i have played with the engine a bit looking for around 450hp maybe 500, wat you guys rekon about exhorst sizes nad a good person in auckland to get to done by.

also any info on downpipes appreciated

Cheers

[Malcolm]

haha, what are you planning on doing for 500hp?
you'd definitely want 3" for that much, and you can't get any bigger than that over the rear suspension.
also, if you really want that much power you should buy my turbo...
http://www.trademe.co.nz/structure/auct ... d=34661193

[GT4PWA]

well i bought a spare engine that i'm going to build up when i get the spare cash just add bits and peices. 500hp is the goal but i will just how much we can get out of the engine i guess remains to be seen...

[Malcolm]

sooooo buy my turbo
http://www.trademe.co.nz/structure/auct ... d=34661193

clearly the auction is closed, but for your goals it would be ideal. Let me know if you're interested