Rear fitment issues

Rob.mcdonnell

Member
 Halesowen
Hi guys
I have an E86 si sport which I've fitted some 19" Csl reps. The issues I'm having is with the rear not sure if they're just too aggressive for my car or I need to fiddle with something to make them fit better

They're 9.5j ET 27
They don't really rub unless there's a passenger in the car aswell but they poke out abit too much and I think it looks abit odd. The question is am I better off sourcing some less aggressive 'et' rears or is there anything I can do. I'm on stock sport suspension

Thanks! 20260904_152107.jpg20260904_152051.jpg20260904_152122.jpg
 
There's not really a lot you can do to make them fit better. The only thing that might work is adding loads of negative camber, but then the car will drive terribly.

Id suggest swapping them for a less aggressive fitment.
 
What kind of et is ideal for a non M car?
It isn't just the offset, most 19" CSL Reps have ET27 9.5J rears whereas staggered 18 rears are ET50 8.5J. So the offset sits them 23mm further out even before allowing for a 25mm wider rim!

If you compare OE 18s with your Reps on willtheyfit it will tell you how much further out the Reps sit. Then work from there putting in different options, but as RMB says mid 30s would probably be about right. I ran 8.5J x 18 ET40 rears on my 3.0Si and didn't have any rubbing.
 
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I’m running 9,5” et35 in the rear (non M coupe) and have no issues with rubbing and it’s lowered on some Eibach springs.
 
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