C5 Rear diffuser making progress
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Joined: Dec 2010
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2020 Corvette of the Year Finalist (performance mods)
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Instructor
Joined: Feb 2015
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very very very ...... difficult to install , but it look's great 
http://corvettecreationz.com/store/i...&product_id=83
http://corvettecreationz.com/store/i...&product_id=83
Thread Starter
Drifting
Joined: Mar 2012
Posts: 1,517
Likes: 147
From: Jasper Alabama
The diffuser I made started as a stock C6 ABS diffuser. Had to cut it in three places to fit it to a stock C5 rear bumper fascia. Mine can be installed in about 30 minutes. No drilling or cutting. No need to purchase another rear bumper.
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Acct Suspended APR 2026 by request
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2020 Corvette of the Year Finalist (performance mods)
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Thread Starter
Drifting
Joined: Mar 2012
Posts: 1,517
Likes: 147
From: Jasper Alabama
the other bumper removes the c5 reverse lights and puts them in the diffuser... it's basically a c6 bumper that uses c5 taillights, but it fits horrible from what I've seen and I have bad experiences with their hood so it's a no go for me... I would like to see some pics of your diffuser from a distance so we can get a better view of what it looks like in proportion to the rest of the car
Racer
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From: SWFL
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Thread Starter
Drifting
Joined: Mar 2012
Posts: 1,517
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From: Jasper Alabama
Well I put the exhaust back on, dropped her down off the jack stands and went for a 150 mile test run with the diffuser in place. Worked out great. Got a few 90 mph stretch runs and some steady 75 mph highway miles on it. Held like a glove. Here are a few pics from a distance. Have to meet with a vendor on Monday.
Last edited by Stealth02; Apr 3, 2015 at 09:50 PM.
Safety Car
Joined: Sep 2011
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From: Southern Ca
Well I put the exhaust back on, dropped her down off the jack stands and went for a 150 mile test run with the diffuser in place. Worked out great. Got a few 90 mph stretch runs and some steady 75 mph highway miles on it. Held like a glove. Here are a few pics from a distance. Have to meet with a vendor on Monday.
Thread Starter
Drifting
Joined: Mar 2012
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From: Jasper Alabama
Melting Slicks
Joined: Sep 2007
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From: Rockland County NY
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That looks great, let me know if you still need my fascia cover, I'd be happy to replace it with one of these haha
Le Mans Master
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From: Oviedo Florida
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What you have accomplished so far is outstanding.
Your quasi-diffuser has a lot of style which is what
most are 'clamering' for.Nice work.
When you decide to improve your q-diffuser I suggest
you incorporate a flat square pan underneath your vette.
It can be bolted to your q-diffuser and the places that
you see fit. This way you can settle down the turbulent
air from your rear axle to the bumper. This will improve
down force greatly.
The pan can be a option for us purist and the rest will enjoy
the look. Again fine work and Good Luck.
Your quasi-diffuser has a lot of style which is what
most are 'clamering' for.Nice work.
When you decide to improve your q-diffuser I suggest
you incorporate a flat square pan underneath your vette.
It can be bolted to your q-diffuser and the places that
you see fit. This way you can settle down the turbulent
air from your rear axle to the bumper. This will improve
down force greatly.
The pan can be a option for us purist and the rest will enjoy
the look. Again fine work and Good Luck.