When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
does anyone have the 40 series on a 300 i6. what does it sound like and should iget a si/do or si/so. What would a glass pack sound like? I dont want to lose lowend power and torque but gaining some top end would be nice