Here at Kline, we felt that the Factory exhaust for the 458 did not reflect the true beauty of this stunning supercar, or reach the full sonic potential of the 4.5 liter V8 Starting at the drawing board, the first aspect to be upgraded, replacing the 600cpsi catalysts for high performance 100cpsi race catalysts, thus reducing the gas drag coefficient, and improving scavenge, and ultimately torque response and peak power figures.Replacing the heavy, cumbersome, built down to a cost factory silencers, for our harmonically tuned silencers, we were able to enrich both bass and treble frequencies, as well as significantly reducing weight. The final, and perhaps one of the most important design features, unique to Kline. Our trademark tight radius laminar flow x pipe. The resulting sound is unbelievably smooth under light driving conditions, and a howling raucious high pitched incendiary vocal when you need it. Under low revs (valve closure) the gases are allowed to pass through a chamber, and an acoustic ceramic filled silencer, with the cross sections tuned toward reaching optimum gas velocity for achieving maximum torque. under hard load and high revs, the valves open for optimum power. The valves are actuated by the cars OEM vacuum system, and can be controlled by the new Kline INCONEL BUTTON wireless kit. READ MORE >>
Manifold back system, 24 hours
Manifolds, 40 hours
Total, 64 hours (1.4 weeks)
Manifold back system, 16 hours
Manifolds, 30 hours
Total, 46 hours (1.1 weeks)
100 cpsi cat version, 14hp increase at 8500rpm, and 26nm at 4100rpm
De-cat version, 22hp increase at 8500rpm, and 32nm at 4100rpm
Catalyst/De-cat section tubing, dual 63.5mm OD, chosen for a balance of torque and peak power. catalysts, available in 100cpsi 124mm billet, HJS race catalysts, or de-cat variation for more aggressive sound, and ultimate performance.
silencer section tubing, dual 63.5mm on valve open, single 50mm on valve close.
63.5mm 1D CLR laminar flow x pipe.
Coming soon, manifolds. primaries 45mm, 63.5mm post collector, with formula one grade true merge collectors. Primary lengths yet to be released.
Available in full Inconel 625 (formula one grade) material. Weight valvetronic silencer section 6kg. De-cat pipes 1.0kg each, catalyst pipes 3.8kg each.
weight saving 24.4kg (De-cat), 20.2kg (100cpsi cat)
Also available in 304 stainless. Weight valvetronic silencer section 13kg. De-cat pipes 3.0kg, catalyst pipes, 4.5 kg.
Manifolds will shortly be available exclusively in inconel 625. ultra light weight, and the best listed performance figures to be announced
100 cell HJS catalysts come as standard.
Decat pipes are also available for optimum performance, and a more aggressive sound