C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

headers and front y pipe for my C4

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Old Aug 10, 2025 | 09:42 AM
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Default headers and front y pipe for my C4

Hey, I have a 1986 corvette and want to upgrade my exhaust system and wanted to know what long tube headers and front y pipe that I could get for relatively cheap.
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Old Aug 10, 2025 | 03:27 PM
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I ended up with Hedman because, as I recall, it had the thickest flange compared to the others. Some have had problems with the flange warping. I had to mod the housing myself at cylinder 9.

The rest of the exhaust is custom made.



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Old Aug 10, 2025 | 03:41 PM
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I used a set of Hedman Elite headers a few years ago, without the emissions, adopted (cut and welded tubing onto the collector) to run with a TPIS 3" Y pipe, re-coated everything with flame proof silver. Used Magnaflow high flow 3" cats after the Y pipe, standard catback (Magnaflow) from there on back.

Looking back, I should have gone with the Exotic Muscle headers and the extension pipes to fit the stock system, a little more expensive but it all fits perfect.

Today I have the ARH stainless headers, and full custom stainless exhaust (as i was trying to get proficient with Tig welding thin stainless)
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