A afiq opel Active Member Jul 12, 2011 31 6 508 Kuala Lumpur Dec 24, 2011 #1 Any comments? Regardless of which brand and either 4-2-1 or 4-1. Any replies would be much appreciated and thank you in advance.
Any comments? Regardless of which brand and either 4-2-1 or 4-1. Any replies would be much appreciated and thank you in advance.
G221 Over 10,000 RPM! Senior Member Jan 15, 2004 13,344 61 3,148 KL Dec 25, 2011 #2 HKS 4-2-1 Racing Header/Extractor.
A afiq opel Active Member Thread starter Jul 12, 2011 31 6 508 Kuala Lumpur Dec 26, 2011 #3 Bro g221, Are there any obvious improvements after using it? How well is it?
G221 Over 10,000 RPM! Senior Member Jan 15, 2004 13,344 61 3,148 KL Dec 26, 2011 #4 yes...obvious in sound...not sure on how well the improvement is as installed it together with other stuff..but for sure improvement is there. if not people dun change extractors/headers. go dyno and you'll know.
yes...obvious in sound...not sure on how well the improvement is as installed it together with other stuff..but for sure improvement is there. if not people dun change extractors/headers. go dyno and you'll know.