Originally Posted by Maximo

ON a stock Paloma/Bonito the 9886.41001 has the most bottom of any of the pipe combos...more midrange and more top end..... everywhere under the curve is stronger with a 9886...the 99012/41021 will neuter the Poloma badly...Some of the pipe recommendations given are bad for this engine.... Long manifolds and 9901 ? maybe if your looking to severely detune the engine ......just like the old recommended 2084 combo, horrible !

9886/41001...on these engines nothing else comes close...

BTT is the same way.9886/41001 out powers everything else, even right off the bottom end...