Speedriven 550 Tuning PKG Delivers 585 HP
Our 585 HP PKG includes our advanced ECU software upgrade, high-flow performance downpipes, a lightweight, stainless-steel performance cat-back exhaust system, our billet aluminum transmission pan, and an intercooler pump upgrade for $7000 (US).
Here's the ad we ran for this PKG (albeit fitted to an SL550) as far back as the February issue of duPont- only, back then, the billet pan was extra. Enjoy!


===



