11-09-2010, 09:02 PM
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#9
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Drives: 2010 2SS/RS IBM Black Polished
Join Date: Feb 2009
Location: Colorado
Posts: 2,108
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I got Doug Thorley tri Y long tubes for 508 and 35 shipping. Magnaflow high flow cats 75 ea. Ceramic coated inside and out. 1 3/4 inch but they way they scavenge exhause they are equal to a 4 1/4 collector. Plenty of exaust for my little 418 stroker with 700 plus rwhp. Fits into stock exhaust as well with no problems.
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418 Stroker, 621RWHP 648 lbs TORQUE Built by Laramie GM Auto Center Tuned by Nick at Mac Autosport. EForce SC, 2 3/4pulley,LPE dual fuel pump, JRE Twin fuel rail upgrade, posi clutch kit, RX oilcatch can and breather, Callies Compstar crankshaft and rods, Racing bearings, CP -13.8 race pistons, steel rings, Comp Cams X6 blower cam, Springs, HD timing chain and tensioner, Doug Thorley Tri Y LT headers, 89.7lb injectors, RPM rollbar, DSS1400 shafts, Simpson 5 pt harness, BMR Toe rods and trailing arms, led lights, RPM input and output shafts
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