Fits 2004-2007 Yamaha YXR66F Rhino 660 Slip-on system w/Sport Muffler AT-6411SP superchips More cooling fins per inch

More cooling fins per inch for more efficient cooling

Hooker Headers has designed this kit in conjunction with Hooker Turbo Muffler (21005HKR) or any equivalent 2 ¼” ID inlet by 2 ¼” ID outlet single offset OEM muffler

0 1-5/8 LONG TUBE HEADERS (Polished Silver Ceramic)

7 V8 1977 - 1985 Chevrolet Impala 305/5 V8 1977 - 1987 GMC Jimmy 305/5 V8 1975 - 1978 GMC K15 400/6

7 V8 1974 Buick Century / 1974 - 1979 Buick Electra / 1973 Buick Estate Wagon 455/7

Fits 2004-2007 Yamaha YXR66F Rhino 660 Slip-on system w/Sport Muffler AT-6411SP superchips More cooling fins per inchCLEAN LOOKS AND A PERFORMANCE SOUND MBRP SPORT SERIES, Quickly bolt on an MBRP Sport Series exhaust and enjoy the new deep tumble coming from your ATV or SXS. Slam the throttle for an aggressive sound, or cruise all day long without worrying about being obnoxious. This exhaust focuses on enjoying the trails and delivering a balanced tone.