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Message: <blockquote data-quote="SRT Handz" data-source="post: 459139" data-attributes="member: 8001">There is no Comparison Between the UPR and MM pieces. The MM pieces are Top Notch Designed and are so strong they can be used as a jacking point...so you can jack right from the center of the car.Give Josh at StangSuspension a call and Take advantage of out forum discount.All SFC ARE NOT the Same and ARE NOT just pieces of metal. every company uses there own design and there is a HUGE difference between Regular SFCs and Full Length SFCs. MM SFCs Are Leaps and Bounds better then everyone elses including Steeda and UPR (BS). MM SFCs are 53% stronger than the competitors and Fitment is Great.... There only other SFC that comes close Was Kenny Brown....But Kenny Brown went out of Business because MM Stuff is like gold.A little Info from MM Steven.....Maximum Motorsports created the first "Full-length" subframe connectors many years ago. This is yet another MM product that others have copied. Beware of the copycatsÃ¢â‚¬â€MM's are still the best quality. We have now improved on our original design by increasing the length and height of the connector tube. The resulting XL Series connector is much stiffer than any other subframe connector.The MM Full-Length Connectors stiffen the chassis far more than our standard connectors. The taller tubing of the new XL Series creates a connector that is 95% stiffer than the standard subframe connector. The XL connector tubing is 53% stiffer than our previous Full-length subframe connectors. Beware of connectors from companies who lack the engineering expertise to design their own products. Some have copied our previous design. The new XL Series connectors are 53% stiffer than those copies.The increased length, method of attachment, and stiffer tubing of the XL Series connector means there is no need for jacking rails. Because of the strength of our tubing; you can lift the car by placing a jack anywhere along the length of the connector tube!The new XL Series Full-length Subframe Connectors extend from the rear lower control arm attachment point on the rear subframe all the way up to the firewall. This provides substantially more weld area between the connector and the chassis than other connectors. At 65", the extra length, increased number of attachment points, and extra height in the tubing make this the stiffest subframe connector available.The XL Series Full-length Subframe Connectors are made of 1.5" x 2" x .083" wall thickness rectangular tubing. The thinner wall tubing is used to lessen the weight, while the taller dimension increases stiffness by 95% over our standard connectors.We add reinforcing plates at each bend to prevent the flexing that would otherwise occur with the thinner wall tubing.We seal the tubing by welding on end caps to prevent moisture from getting inside the connector and rusting them from the inside out.Our connectors are custom shaped to hug the floor pan of your Mustang for maximum ground clearance.The MM XL Series Full-Length Subframe Connectors have seat braces that are to be welded to the connector tube during installation. This customizes the fitment to match the car. This is the best method to account for variations in the floor pan.</blockquote>