hooker headers
Joined: Mar 2000
Posts: 43,187
Likes: 43
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Which ones you talking about?
The "SuperComp" shorties, p/n 2055, come with y-pipe w/3" slip fit at the cat, A.I.R. fittings, O2 bung, and CARB certification. Two issues I observed:
1) spark plug clearance tight, shorty plugs highly recommended, one passenger side straight boot plug wire will have to turn into a 90 degree;
2) collector ball flange opening is a whopping 1.9" - Hooker said that is to insure a leak-tight fit and, by the way, the gases have slowed down by the time they get there so it doesn't hurt peformance.
Excuse me -
I did a fit check and opened them up to 2-1/4" centered on the down-pipe. No leaks, runs great.
The "Comp" shorties, p/n 2460. No y-pipe, not available even. A.I.R. and O2 bung available upon request. Since you're talking about a custom y-pipe, may end up costing you more than the 2055's, but the collector design is slightly better.
"Super Comp" long-tubes: Don't know much about them personally, have heard of clearance issues, y-pipe an issue if you have emissions requirements, have heard Mufflex makes a y-pipe that will work. But, again, no personal experience.
The "SuperComp" shorties, p/n 2055, come with y-pipe w/3" slip fit at the cat, A.I.R. fittings, O2 bung, and CARB certification. Two issues I observed:
1) spark plug clearance tight, shorty plugs highly recommended, one passenger side straight boot plug wire will have to turn into a 90 degree;
2) collector ball flange opening is a whopping 1.9" - Hooker said that is to insure a leak-tight fit and, by the way, the gases have slowed down by the time they get there so it doesn't hurt peformance.
Excuse me -
I did a fit check and opened them up to 2-1/4" centered on the down-pipe. No leaks, runs great.
The "Comp" shorties, p/n 2460. No y-pipe, not available even. A.I.R. and O2 bung available upon request. Since you're talking about a custom y-pipe, may end up costing you more than the 2055's, but the collector design is slightly better.
"Super Comp" long-tubes: Don't know much about them personally, have heard of clearance issues, y-pipe an issue if you have emissions requirements, have heard Mufflex makes a y-pipe that will work. But, again, no personal experience.
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