LS1TECH - View Single Post - How much HP will a 4" mufflex with Flowmaster muffler support?

JFM-jr · 07-07-2009, 11:10 AM

I made my own muflex style setup. 3" custom Y into a flowmaster merge out to 4 inch over the axle with a Hooker max flow 4 inch muffler. This gained me 14RWHP over the SLP dual dual that had a Kooks 3" Y catless as well.

07-07-2009, 11:10 AM	#20
JFM-jr 9 Second Club 1999 Chevrolet Camaro Trader Rating: 21 Join Date: Oct 2002 Location: Mastic Long Island N.Y. Posts: 931	I made my own muflex style setup. 3" custom Y into a flowmaster merge out to 4 inch over the axle with a Hooker max flow 4 inch muffler. This gained me 14RWHP over the SLP dual dual that had a Kooks 3" Y catless as well. __________________ , Factory LS2 (364) crank, rods, pistons, N/A , A.S. 5.3 heads, LG G5X4 camshaft, FAST 90/90, Performabuilt level 3 4L60E, ARH 1 7/8's, Circle D 230mm converter, full lineup of Spohn hardware out back -- P.B.= 9.87@134.8 - 60'= 1.30 10/19/09 Speed Density Tuned by Kaltech tuning on Long Island www.kaltechtuning.com Did this with a GM head and pump gas!