2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Installed old-school HKS cat-back onto my SS autochrome system

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Old Mar 1, 2005 | 07:14 PM
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Madrx7racer's Avatar
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Installed old-school HKS cat-back onto my SS autochrome system

well I needed to get a ticket written off and my fiancee needed to get rid of her Apex N1s(too damn loud)....

the y pipe fit fine and everything bolted up without any problems...after I installed it I noticed the following.

1.SOOOO MUCH QUIETER even with the 3" piping from the turbo....
2. I still spool up to 10 psi
3. idle a lot higher
4. I have more vaccuum

just thought i'd post this to see if there are any issues you think I might encounter.....I plan on leaving it on for a week or two(until i finish my fiancee's GTUs and get it registered and insured) and it might experience some high RPMs and boost. The piping diameter is smaller on the HKS as compared to the 3" SSautochrome piping.


I assume it will be louder when I bolt up the HKS onto the RB headers and midpipes on her GTUs........right?
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Old Mar 1, 2005 | 07:23 PM
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OnlyOnThurs's Avatar
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The problem you are gonna encounter is ....herpes
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Old Mar 1, 2005 | 08:17 PM
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Madrx7racer's Avatar
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lol
bitch....
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Old Mar 1, 2005 | 09:11 PM
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NA's are louder because turbochargers act as a sort of muffler. In my experience, the difference is noticable.
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Old Mar 2, 2005 | 10:38 AM
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Madrx7racer's Avatar
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cool.......so far I have not noticed anything out of the ordinary......


Just quiet heavy mufflers....a bitch to install by myself.
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