Spd-Kilz

iTrader: (35)

With the 295s I had to do the very slightest BFH. I'd imagine that I'll have to do a little bit more, but nothing substantial.

Midnight00SS

thats cool, u mean u had to roll ur fenders, or hammer the insides in?

LaBLKv6Z

iTrader: (13)

275/40/17 and 305/35/18 nitto 555 DR in the rear, BFH mod on the driverside inner well and rolled the lips.

Spd-Kilz

iTrader: (35)

Just hammered the insides a little bit. Haven't rolled the fenders at all, but might consider it since I just lowered it. Not required, but not a bad idea.

Good luck!

Midnight00SS

looks good, but i kinda wanted to stay away from the BFH and rolling lol

Spd-Kilz

iTrader: (35)

I hear you.

Even with 295s on the Z06's, I needed a very slight BFH on the drivers' side. Keep that in mind!

LaBLKv6Z

iTrader: (13)

If you have an adjustable panhard bar, you might be able to get away without the BFH mod lol. It would be super close though.

gocartone

iTrader: (4)

Same here, they only work on cars that came with them. F-bodys look goofy with staggered wheels; Camaros can kind of pull it off, but Firebirds look horrible with them IMO.

A 295-315 on an 18 should hook as good or better than the 275s you have now, so no worries there.

Midnight00SS

really thats good to know, cause i though the 17 would be better cause of the sidewall height?

gocartone

iTrader: (4)

I don't think the sidewall height is going to make a huge impact going from a 17 to an 18, and a 315 is over an inch and a half wider than a 275 is. That's over three inches of contact space with the two tires.

Midnight00SS

ok cool, does mickey thompson make a 315 drag radial?