Thanks for your comments.
Those are SLR 300m torsion bars with an SLR stage 5 suspension. A year and a half later and no problems or issues other than a replaced idler arm bushing.
Engine wise it's a custom built JP Performance exhaust system with a Bullet muffler and a K&N charger.
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If we do not succeed, then we run the risk of failure. - Vice President James Danforth "Dan" Quayle