Tire Size on rear of Cobra

I want to put a wide drag radial on and looking for recommendations. I feel like a 335 but is that too large? I want that wide stance in back. Also should I get the 10.5 wheels? Spacers? Thanks!
2003 Cobra whipple

I have 2 friends with 335’s out back. They have rolled fenders, MM low profile button head IRS bolts, extended wheel studs and are running a spacer. You will definitely will need wider rims on the back. I ran 17x10.5s with a 315 wide tire.


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IMO the 335 is too big for the Cobra. Just doesn't look right to me. I have a 315 on a 10.5" rim and wouldn't go any wider than that.

Yep. And when dudes do that and a 40series or something....YUCK.

305/35 and 315/30 both look pretty stout OP.

I’ve had both the 305 and 315, I prefer the 315

i have nitto 315s on 10.5 wheels, and they barely fit. i used spacers and ground some of the thickness off of the subframe bolts. those low profile bolts are junk IMO. too easy to strip with the necessary torque.

Depends on tire and rim size. Some 315s are actually wider than some 335s and some 295s wider than 315s. Currently I am running 17" ET Streets at 315s. Looking for some 18" but in a 305" size.

MG0h3 said:

Yep. And when dudes do that and a 40series or something....YUCK.

305/35 and 315/30 both look pretty stout OP.

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Not crazy about the 40s profile either, unless its for the purpose of drag racing. I've had both as well and the 305/35 profile look the best in my opinion 315/30s profile leave a big gap in the fender, my 305 are on 18x11s.