If you're not aware, the early Hemi's are at risk of dropping valve seats without warning. 05 5.7 Maggie, 06 5.7 Jeep GCO modded the same, MDS ON lights, advanced FRI Sidewinder cams, 6.1 valve trains, 25% UD pulleys, BT catch cans, ported/polished/milled heads, 90mm TB's, long tube headers, SRT8 CAI's, SOS coils, Transgo Shift Kits, SC, DS and 626-337-3700. Mon-Fri 9am-5pm PST. Guaranteed Safe & Secure. Chrysler 300 Ignition Upgrades. Performance Ignition Coils and Spark Plugs for 3.5L or 3.6L V6, 5.7L Hemi, 6.1L & 6.4L SRT8. Choose from Coil Packs by Accel, MSD & Ignition Projects. "In a democracy, dissent is an act of faith." J. William Fulbright Steve 06 300C SRT8 all stock Best ET-12.79 Best trap speed-111 mph. ESP on! I finally have my software! As for the SRT model, after being introduced with the 6.1-liter Hemi, the 6.4-liter, 392-cubic inch Hemi became standard in the 300 SRT starting in 2011, offering 470 horsepower through the 2014 model year, which was the last for the Chrysler SRT trim level in the United States. In the '05 model year, a bigger-bore 6.1 (372-cid) version was launched in the SRT8 versions of the 300C and Jeep Grand Cherokee and was subsequently rolled out into Chrysler's other models as 504 posts · Joined 2005. #2 · Nov 26, 2009. My HEMI's at 140,000 and I use Pennzoil Platinum 5/20W. I would recommend. Steve. 07 - SRT8, 93CAI Predator Tune, Diablosport Catch-can, AFE II CAI, Magnaflow with cut-outs, BP Ultimate ONLY! 69 Camaro - Tricked 350, 750CFM Holley. Save. Reply Like. 2006 Chrysler 300 6.1L Right Exhaust Manifold (Fits: Chrysler 300) FAST N FREE SHIPPING ~ 30 DAY WARRANTY. $145.72. Was: $165.59. Free shipping. or Best Offer. SPONSORED. Essentially Dodge’s version of the Chrysler 300C SRT8, the Charger SRT8 is propelled by a 6.1-liter Hemi V-8 that produces 425 horsepower and 420 pound-feet of torque. All of that power is Ycupq.