Premier Autosports 2009 Caddy CTS-V
01-06-2011, 09:33 PM
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Premier Autosports 2009 Caddy CTS-V This is my daily driver that I absolutly love no matter how much my guys make fun of me being 30 going on 65 or that I stole started modding my grandmothers caddy. But granny is proud lol.
2009 CTS-V
2.55 Upper
Metco 100mm Idler
Innovative West Crank Pulley
Metco 8.6 Lower
Modded Stock Air Box
Premier Autosports Heat Exchanger
Premier Custom Camshaft 216/242 .630/.660 122
Premier / LSXTuner.com Tune
She still drive like a stock car, my fience drives it a few times a month and the only comment is she likes the whistle it makes. Both runs were the hot runs with comparable coolant and IAT temps. Run #2 was upper 2.55 and airbox. Dustin is fabbing a new mid section exhaust to do away with the rear cats, crushed factory piping, and use a proper X. I don't expect amazing gains but it should sound just the way I want it still through the factory mufflers.
2009 CTS-V
2.55 Upper
Metco 100mm Idler
Innovative West Crank Pulley
Metco 8.6 Lower
Modded Stock Air Box
Premier Autosports Heat Exchanger
Premier Custom Camshaft 216/242 .630/.660 122
Premier / LSXTuner.com Tune
She still drive like a stock car, my fience drives it a few times a month and the only comment is she likes the whistle it makes. Both runs were the hot runs with comparable coolant and IAT temps. Run #2 was upper 2.55 and airbox. Dustin is fabbing a new mid section exhaust to do away with the rear cats, crushed factory piping, and use a proper X. I don't expect amazing gains but it should sound just the way I want it still through the factory mufflers.
Last edited by Josh@PremierAutosports; 01-06-2011 at 09:43 PM.
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01-07-2011, 04:29 PM
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Thanks guys. I love the white with all the chrome gone. I would love to lower it a little but just don't want to give up any ride quality. The main guy that messes with me is the head guy in the shop Dustin. His daily driver is the opposite of my nice quiet refined Broham. His daily is a 98 Camaro with a stock ls2 bottom end with a large cam, dumped exhaust, that runs 9.4x so I guess he can call my car slow. But I can talk on my phone and hear my radio. I'll grab some pics of the exhaust he is building right now.
. Add some 1 7/8" long tubes and hello 600 at the rear tires! 
01-08-2011, 10:50 PM
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Here is the beta mid section exhaust Dustin fabbed up. This is made out or mild steel but we will also have these available in stainless. I love the way it sounds now, its exactly what I was looking for. Maybe 10-15% louder at idle and 30% louder under throttle. I'll work on getting some video soon.
Stock
After
Stock
After
01-11-2011, 09:00 AM
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I'm very certain it will do 600. The cam is just slightly noticeable at idle but now with the cutouts open you can really tell it has a cam. Nothing crazy but no missing it.
01-11-2011, 10:22 AM
#18
wow 36 degrees difference between intake and exhaust duration. Those LS3 heads seem to really like that big split as I've seen all the real performers that are using the rectangle port heads are utilizing that big exhaust split on a wide LSA. Your LSA is more than wide though its canyon like lol. I'd like to see what happened to the curve after just the cam swap.
01-11-2011, 09:56 PM
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Got back on the dyno today and made more power than I expected. Same dyno, same tune, coolant temp within 1 degree, intake air temp was 8 degrees cooler today. Yes I'm happy with the gains.
