what is a better choice???

http://cgi.ebay.com/ebaymotors/side-...mZ300111071482

i want to pull the trigger on those right now but dont know much about molding stuff on...do i just use some kitty hair or something?

 

Best thing to do would be to ask a body shop. Don't use putty as it will crack all the way around the scoop after the car is painted. I have never used kitty hair but I hear thats the bomb for doing stuff like that. I used the bondo glass and haven't had any problems yet. Whatever you use, apply the least amount as possible.
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im wonder if i could just add my own bolt and then make them bolt ons?? i mean they just use kitty hair to do the quarter panel extentions dont they??? same thing as far as i can tell?

 

Bondo or even kitty hair (fiberglass) can crack over time.

Do like the corvette guys have done for years. Get a good bonding agent and you will never have any problems.3M makes a good one8115 for fiberglass to metal.

 

oh good idea...i wonder if there is a flange to put the bonding agent on...?

 

I don't know how different those scoops might be, but you grind the edge a little to give you more of a flange. I had already used self drilling/tapping screwsto mountthe scoop in place before Ibonded it.Remove it, then you add a liberal amount of bonding agent. I used the same screws to hold it in place while the bonding agent set up. I used a 90 minute cure bonding agent. Gives you enough time to get itwhere you want it.

 

Results:

 

The one's I purchased off e-bay did have one stud on each of them. I added one making for a total of two. I had to do so to suck the back of the scoop to the quarter. After I fit the scoops to the quarter panel I filled the scoop from the backside with urethane foam to bond it to the quarter panel. Then I used bondo glass to blend the edges in.
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is bondo glass essentially kitty hair....fiberglass body filler?