Awaiting TSW X-brace from Way Motor Worksin the mail. I have an Invidia Q300 2.5" cat-back exhaust and am wondering if the brace will clear it. I ask because on the website a reviewer noted minor clearance issues with said exhaust.

Also has anyone installed this brace noticed a reduction or elimination of sunroof squeak and dash rattle over large bumps? This is one of the reasons I purchased the brace. It's maddening!!! I feel the R56 chassis has excellent torsional rigidity but it still manages to flex on Rhode Islands truly horrible roads.

 

I still have some squeaks and rattles in the car with the new brace. I try not to let those things bother me, but that is me. I enjoy the windows down summer driving (I had to remove the brace for the winter, it was painful listening to the ice chunks hitting it).

The car does feel better over washboard pavement. I replaced the control arm bushings at the same time, so I don't know which parts contributed more to that.

There is about an inch of clearance between the brace and fJCW exhaust on my car. The brace crosses a few inches behind the front exhaust hangers, for reference.

You won't regret having it.

Have fun,
Mike

 

Good to hear I'm all for reducing unnecessary chassis flex. The list below shows approximate torsional rigidity. Unfortunately I can't find any specs on the R56, I assume it's higher due to the R56's improved front strut tower design. All values are in Nm/deg

Mini Cooper (2003, R53) 24,500
Mini Cooper Convertible (R53) 9,000

BMW E36 M3 10,900
BMW E36 Z3 5,600
BMW E39 5-Series 24,000
BMW E46 Convertible 10,500
BMW E60 5-Series 29,795
BMW E53 X5 23,100
BMW E70 X5 28,000
BMW E85 Z4 16,000
BMW E85 Z4 Coupe 32,000
BMW E85 Z4 M 16,000
BMW E85 Z4 M Coupe 32,000
BMW E52 Z8 10,500
BMW E90 3-Series 22,500
BMW E90 3-Series Convertible 15,750
BMW F07 5GT 31,500 (w/o sunroof); 27,500 (w/ sunroof)
BMW F10 5-Series 37,500
BMW F15 X5 29,400
BMW F30 3-Series 29,300
Ferrari 360 Spider 13,800
Ferrari F430 27,600
Ferrari 458 33,120
Ferrari 458 Spider 23,184 (70% of the Coupe)
Ferrari F50 34,600
Mercedes R230 SL-class (2006) 17,000 (top down), 21,000 (top up)
Mercedes R230 SL-class (2012) 16,399
Mercedes R231 SL-class (2013) 19,400
Mercedes W212 E-class 29,920
Mercedes W221 S-class 27,500
Mercedes W222 S-class 40,500
orsche 911 Cabriolet 991 (2012) 11,699
Porsche 911 Carrera GT 26,000
Porsche 911 Carrera Type 997 33,000
Porsche 911 Coupe 991 (2012) 30,359
Porsche 911 Turbo (2000) 13,500
Porsche 911 Turbo 996 27,000
Porsche 911 Turbo 996 Convertible 11,600
Porsche 959 12,900
Subaru Impreza WRX (2nd-Gen,2002 – 2007 ) 23,000
Subaru Impreza (4th-Gen, 2012 – ) 24,500