His: 05 330 ZHP Imola Red - 07 Z4 M Coupe Imola Red
Hers: 04 330i ZSP
2004 325 M56 Steel Blue Metallic - Sold
Stephen's DD & AutoX/HPDE Build Thread
Stewart WP - Z4M LCAB - M3 trans/motor mounts - DICE MediageBridge Duo - ARC-8 17x8.5"
DrVANOS - Mason Engineering Race Strut Bar - E30 Exp. Cap - Custom Black+Beige Interior - M3 Seats
Bilstein PSS10 - Turner Sway Bars 27/21 - ECST RTAB Limiters - R.E. RSM
According to tire rack, the 245/45 and 245/40 are both 25 pounds (for my tire). So I doubt I'll feel much difference.
My mpg will take a hit though. I've seen about .75 mpg less at highway speeds on these tires, and they're only .3" smaller diameter compared to OEM style 135 with 255/35/18.
A whole inch less of diameter will probably knock that down a lot
His: 05 330 ZHP Imola Red - 07 Z4 M Coupe Imola Red
Hers: 04 330i ZSP
2004 325 M56 Steel Blue Metallic - Sold
Stephen's DD & AutoX/HPDE Build Thread
Stewart WP - Z4M LCAB - M3 trans/motor mounts - DICE MediageBridge Duo - ARC-8 17x8.5"
DrVANOS - Mason Engineering Race Strut Bar - E30 Exp. Cap - Custom Black+Beige Interior - M3 Seats
Bilstein PSS10 - Turner Sway Bars 27/21 - ECST RTAB Limiters - R.E. RSM
His: 05 330 ZHP Imola Red - 07 Z4 M Coupe Imola Red
Hers: 04 330i ZSP
2004 325 M56 Steel Blue Metallic - Sold
Stephen's DD & AutoX/HPDE Build Thread
Stewart WP - Z4M LCAB - M3 trans/motor mounts - DICE MediageBridge Duo - ARC-8 17x8.5"
DrVANOS - Mason Engineering Race Strut Bar - E30 Exp. Cap - Custom Black+Beige Interior - M3 Seats
Bilstein PSS10 - Turner Sway Bars 27/21 - ECST RTAB Limiters - R.E. RSM
.
Last edited by JB3; 07-23-2015 at 03:48 AM.
How much less are you spending on tires with these? I want to get the Arc 8's and I am still deciding if I want 18 or 17.
--Bryant
2004 330i ZHP Imola | 6MT | /// Coby Tri-Stitch Wheel | Khoalty Angel Eyes | eBay Headers | Euro RCR Light Package | Vibrant Performance Custom Exhaust
Depends on brand of tire, but my BF Goodrich G Force Sport Comp2 tires are $119 for 245/40/17 vs $170 for 255/35/18. So $51 PER tire. $220 per set of 4 after taxes.
Michelin PSS are $163 vs $225 for the same sizes. So that's $62 PER TIRE. $250 per set after taxes.
That's quite significant to me, especially if I'm going through a set of tires every 18-24 months from autox/daily driving.
PLUS the 17" wheels are cheaper and lighter than the 18" wheels.
His: 05 330 ZHP Imola Red - 07 Z4 M Coupe Imola Red
Hers: 04 330i ZSP
2004 325 M56 Steel Blue Metallic - Sold
Stephen's DD & AutoX/HPDE Build Thread
Stewart WP - Z4M LCAB - M3 trans/motor mounts - DICE MediageBridge Duo - ARC-8 17x8.5"
DrVANOS - Mason Engineering Race Strut Bar - E30 Exp. Cap - Custom Black+Beige Interior - M3 Seats
Bilstein PSS10 - Turner Sway Bars 27/21 - ECST RTAB Limiters - R.E. RSM
--Bryant
2004 330i ZHP Imola | 6MT | /// Coby Tri-Stitch Wheel | Khoalty Angel Eyes | eBay Headers | Euro RCR Light Package | Vibrant Performance Custom Exhaust