Quote:
Originally Posted by lsturbointeg
i would do a lot more research on your wheels since you're XDrive as a few members here went staggered and ended up not being able to use it since it caused issues. i know one member here had issues and ended up ordering either the front or rears to match the other set. i know Remmib is our wheel guru here so hopefully he can chime in.......
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So I researched a bit more and found the following threads/posts:
http://f10.5post.com/forums/showthread.php?t=580429
http://f10.5post.com/forums/showpost...9&postcount=14
http://f10.5post.com/forums/showthread.php?t=1261038
http://f10.5post.com/forums/showthread.php?t=1343784
All of which seem to indicate that a staggered setup on an x-drive is OK so long as you keep the front and rear tires nearly the same diameter (within 1% seems safe).
Quote:
Originally Posted by Darryl79
My install cost.
Wheels / Tires = $2300. Swapped existing TPMS sensors. Beyern Spartan 20" Wheels with Square tire Setup
F: 245/35/20R, R: 245/30/20R
ACS Springs - Due to him having a b*tch of a time getting the struts out, he charged me $540 or something for about 6 hours of labor and cut me a break on rest. Mine is X Drive so I'm sure that contributed to his difficulty in the swap
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OK, so $540 to install the ACS springs. I'm assuming that $2300 included your new Beyern Spartan's and tires.... not just install and TPMS swap.
Quote:
Originally Posted by ndinh
...245/35/20 + 285/30/20 seems like the closest to OE overall diameter (26.7").
Maybe it's because the OP's car is a xi or maybe it's his location but here in SoCal, wheel swap/TPMS swap runs around $100. Spring install range from $250 to $350. Coil overs will add an extra $50-$100. Alignment is $100-$120. I'd recommend just picking up another set of TPMS for your aftermarket wheels so you don't have to pay again for the swap years down the road.
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Correct, the 245/35r20 and 285/30r20 is the closest but there are no UHP all-season tires in those sizes, only summer tires. This is why I was leaning towards the 275/30 in the rear.
As for the buying new TPMS... I initially planned too but then decided to sell the OEM 351s so I may as well save the $220 on a new set of TPMS -- both of which will help offset the astronomical spring install costs here in Maryland.
Speaking of which, I was able to find a 3rd shop through my local Cars & Coffee group -- a Porsche Performance Shop which happens to be less than 2-miles from my house.
SHOP 3 -- $1,050
$100 to mount/balance the rims/tires, swap the TPMS and discard OEM tires
$810 for front & rear spring install (quoted one day, said it could be less)
$140 for an alignment
This seems much closer in price to all of the comments back to me, especially if it doesn't take them all day.
I'll see if I can source another shop or two at this Saturdays Cars & Coffee otherwise I am going to go with the Porsche Shop; place seemed legit when I went in. And, it is super close which helps in enlisting help from my wife
(who for some reason does not understand nor is a fan of my car obsession) since she will have to follow me with the rims & tires and take me back to pick my car up.
After a lot of reading, I decided on the 245/35r20 and 275/30r20 setup and my goal is to have everything installed by the end of the month. When I do I'll update the post with some pics.
Thanks to everyone who chimed in and hopefully someone else will find the info useful!