G35 coupe wit HKS Dual: Cat Delete or High Flow??? - G35Driver

Jan 8, 2008 | 02:27 PM

bemeg35

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From: Bergen County N.J

G35 coupe wit HKS Dual: Cat Delete or High Flow???

I have an 03 Coupe with the HKS true dual exhaust..I need to know if i'm better off with high flows or if i should go straight back and delete the cats all together..Anyone wit experience or suggestions? Please Help!

Jan 8, 2008 | 02:29 PM

patman530

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From: Sacramento, CA

go with some HFC's, test pipes and the HKS produces rasp, and makes it sound kinda crappy

Jan 10, 2008 | 12:31 AM

StreetChase

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From: Jersey/Towson, MD

My dad has an HKS exhaust on his Z with FI 300 cell HFC's. It sounds great and there is next to no rasp whatsoever

Jan 10, 2008 | 03:13 AM

Beebo

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From: El Paso Texas

Quote:

Originally Posted by patman530

go with some HFC's, test pipes and the HKS produces rasp, and makes it sound kinda crappy

^+1

Quote:

Originally Posted by StreetChase

My dad has an HKS exhaust on his Z with FI 300 cell HFC's. It sounds great and there is next to no rasp whatsoever

get those

Jan 10, 2008 | 03:30 AM

98intrigue

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From: Clearwater, FL

The power difference is minimal... On the same day, I did a dyno comparison between the HKS + Crawford cats and then HKS + FI test pipes, which yielded 1whp more. Very unimpressed. The sound with the cats was much better. Check out my videos on youtube. I have a few to hear the difference.

http://www.youtube.com/profile_video...=tommy8897&p=r