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supraman
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632 Posts
Discussion Starter #1
Just received from Japan and installed the HKS downpipe was pretty upset as I realised only after I got it that it replaces only the rear main CAT and not the pre CAT. Also not happy with the performance gain from this mod. I have to now fabricate a pipe from the exhaust manifold to replace the pre CAT. A real bummer!! Will elimenating the pre CAT make a big difference?:mad:
 

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I hope you didn't wait long for that HKS pipe. I have a used one sitting in my shop with the O2 flange already added. I get those pipes cheap from NOPI, it's a shame they 75mm and only replace the main cat. But they will bolt right up to a Random Tech High flow cat DP.
 

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supraman
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632 Posts
Discussion Starter #7
Received it in 4 days from Japan via Express Mail Service cost me 230$ landed I just realised that my mechanic can get the entire downpipe fabricated for less than 150$ in stainless steel. I will now be making the small custom downpipe to elimenate the pre-CAT. God why did'nt I think of this before I ordered. :(
 
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get a dp from exhaust depot.com hector got me a full dp 3 in stainless for 235 shipped... kevin...
 
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