The TR6 is a great product like all of Bob's inventions and fills a void of good modules not being available in the aftermarket. I think the TR6 is a great investment for a TR but a good working OEM module/coil pack will support 500+ hp. I have been very low 10's on a stocker and many have gone 9's with stock set ups but the problem is that OEM units are getting old and there aren't good stock style replacements at this time. If your stocker is working well your will prolly be good assuming everything else is good but the TR6 would be a great investment for dependability.