hytech replica tri-y header, exhaust & AEM CAI install
well after 8 weeks of owning my 98 prelude SH i have installed the hytech replica tri-y header, 2 1/2 inch piping hiflow cat magnaflow, dynomax resonator, and stainless steel magnaflow muffler and an AEM polished CAI.
All parts and labor comes around to 800 bucks, did dyno it stock and pulled a 164 whp after all the boltons 182 whp so thats a total of 18 whp i really did not expect that much, i was hoping for atleast 10 to be honest so i was very pleased the best investment was for sure the hytech replica header 10+ whp
for a cheap price was well worth it.
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98 Prelude SH
stock body
hytech replica tri-y header, 2 1/2 exhaust Aem CAI
dyno std 182 whp
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1988 Prelude S - victim of an 80mph backflip
1991 Prelude Si - sold
1989 Accord DX - impounded
1998 Prelude SH - totaled on 3/29/12
2006 CRF150F - sold
2006 YZ250F - sold
Last edited by Kronn 98SH; 04-08-2010 at 03:08 PM.
Definitely with out your help kronn i would not have bought the header and your dyno results i was concerned about them, but now that i have it for my self i am a true believer on the tri-y header thanks for helping me buy it.
__________________
98 Prelude SH
stock body
hytech replica tri-y header, 2 1/2 exhaust Aem CAI
dyno std 182 whp
Right on man, I just did this not too long ago and couldnt be happier with my set up. Not a bad first set of upgrades for your Lude
thanks i have seen your post and pic as well nice work looks clean. i went with the magnaflow just because i want it quite. it has i nice sports tune sound to it
kind of like the 350z .
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98 Prelude SH
stock body
hytech replica tri-y header, 2 1/2 exhaust Aem CAI
dyno std 182 whp
164 whp stock? interesting, seems to be a tad higher than usual?
i was thinking the same the first two run were 161 and we let it cool down some and then it jumped 3, the guy that dynoed my car has done many preludes he said mine was average he seen some as high as 170 whp, yes i asked him if it was the type s he said no. So i don't know.
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98 Prelude SH
stock body
hytech replica tri-y header, 2 1/2 exhaust Aem CAI
dyno std 182 whp
Did you end up having to cut your cross member? also i have been really annoyed with exhaust system setups, in terms of what people say is better. People say get a 2.5" SS from kteller but thats 2.5" OD correct? if so why get a 2.5" exhaust over a 60mm aftermarket cat back? so my biggest question is, are 2.5" kits the same as 60mm aftermarket cat backs ?
Did you end up having to cut your cross member? also i have been really annoyed with exhaust system setups, in terms of what people say is better. People say get a 2.5" SS from kteller but thats 2.5" OD correct? if so why get a 2.5" exhaust over a 60mm aftermarket cat back? so my biggest question is, are 2.5" kits the same as 60mm aftermarket cat backs ?
yes i did have to trim 1/4 inch by 1/2 long, but there is a way not to cut it you need two people to install it for more power lol and am not sure about your other ?
i have a custom 2 1/2 inch piping
__________________
98 Prelude SH
stock body
hytech replica tri-y header, 2 1/2 exhaust Aem CAI
dyno std 182 whp
so my biggest question is, are 2.5" kits the same as 60mm aftermarket cat backs ?
Well 60mm = 2.36inches so with a 2.5" set up you will have more volume for exhaust to travel, as far as which is better, depends on your goals,.. N/A or Turbo - after quite a bit of post reading, before i did my set up, it was advised that 3" exhaust was ideal for turbo builds and 2.5" for naturally aspirated. Of course to get the most of the exhaust piping diameter then you would need to at the very least upgrade the headers all the way back to the muffler.
Well 60mm = 2.36inches so with a 2.5" set up you will have more volume for exhaust to travel, as far as which is better, depends on your goals,.. N/A or Turbo - after quite a bit of post reading, before i did my set up, it was advised that 3" exhaust was ideal for turbo builds and 2.5" for naturally aspirated. Of course to get the most of the exhaust piping diameter then you would need to at the very least upgrade the headers all the way back to the muffler.
True, but i have a kteller 2.5" exhaust piping kit and its 2.5" OD and about 60mm ID. So that being when someone talking about custom 2.5" piping is that OD or ID. Also does that mean aftermarket catbacks 60mm diameters are ID or OD?
Could you post a pic of how/where you cut the crossmember? i've been reading bout the hytech replica and wanting to do one, just want to know how to cut the crossmember when i need to do it. I'll probably be doing it myself at my friends garage (he's a lift, piping, welder, etc stuff i need to do it) Try-y with 2.5" piping, magnaflow cat, and resonator, sounds like a good setup.
Could you post a pic of how/where you cut the crossmember? i've been reading bout the hytech replica and wanting to do one, just want to know how to cut the crossmember when i need to do it. I'll probably be doing it myself at my friends garage (he's a lift, piping, welder, etc stuff i need to do it) Try-y with 2.5" piping, magnaflow cat, and resonator, sounds like a good setup.
Just look at all the pretty pictures. (I also edited my first post in this thread to include his dynos)
__________________
1988 Prelude S - victim of an 80mph backflip
1991 Prelude Si - sold
1989 Accord DX - impounded
1998 Prelude SH - totaled on 3/29/12
2006 CRF150F - sold
2006 YZ250F - sold
Last edited by Kronn 98SH; 04-08-2010 at 03:09 PM.
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