I'm looking to purchase after market pulleys (please don't recommend NST - long story short, I ordered them in December and they never arrived. My bank is helping me get my money back) as the NST ones have quantifiable gains.
Are there other brands you can recommend? Maybe I haven't researched hard enough, I've only found an AEM pulley set, but that's about it.
Also, what are the benefits of after market Headers for the R18? Anyone have experience using it? Does it need to be coupled with a high flow cat/exhaust system to realise the benefits?
Thanks in advanced!
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