| | Re: SLP HEADERS
With the SLP and TPIS headers , you'll have to do some cutting and welding. I had the SLP headers on my '99 Firehawk and they didn't give me anywhere near 35 hp like they claimed. They were much harder to install than the FLP's and they rested right against the wiring harness that ran to the starter. They did sound very good though. I still think that the FLP's are the easiest to install and they are , by far , the best bang for the buck.