rjlg
Junior Member
Posts: 8
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exhaust
Jul 6, 2016 20:23:51 GMT -5
Post by rjlg on Jul 6, 2016 20:23:51 GMT -5
We're new members and have a 2005 GT it has roush axle back mufflers but we would like a little more rumble out of it. I talked to Brenspeed & the guy I talked to suggested to delete the cats with a new tuner. It came with a Diablo tuner. I'm wondering if any one has this set up . Would I be better of with long tube headers & high flow cats or just change to high flow cats with my mufflers? I don't want to end up so loud I can't drive it. Any thoughts would be appreciated. If anyone has this that I could listen to that would be great. Thanks
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exhaust
Jul 8, 2016 16:12:56 GMT -5
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Post by staing on Jul 8, 2016 16:12:56 GMT -5
I have long tube headers with high flow cats. I thought about deleting the cats but people and the shop I deal with said the drone would be quite loud.
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rjlg
Junior Member
Posts: 8
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exhaust
Jul 9, 2016 13:36:15 GMT -5
Post by rjlg on Jul 9, 2016 13:36:15 GMT -5
ok , thanks. I thought about the headers but wondered if I could just do the high flow cats. Did they make quite a difference?
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exhaust
Jul 10, 2016 17:37:41 GMT -5
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Post by staing on Jul 10, 2016 17:37:41 GMT -5
Makes it sound really good according to everybody behind me. I've not really heard it since I'm always driving my car. Ha ha. I'm not sure if the high flow cats by themselves will do much. I did the headers, H pipe with high flow cats and the axle back mufflers as a package. I went for horsepower and the great sound was a bonus. Don't do shorty headers they are a waste of money no horsepower gains and not much sound difference from people I've talked to.
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rjlg
Junior Member
Posts: 8
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exhaust
Jul 11, 2016 8:56:36 GMT -5
Post by rjlg on Jul 11, 2016 8:56:36 GMT -5
I appreciate your input. Did you have the work done around here?
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exhaust
Jul 12, 2016 18:03:25 GMT -5
Post by thunderfoot1992 on Jul 12, 2016 18:03:25 GMT -5
High flow cats with stock exhaust manifolds do not provide the best bang for your bucks. They work best with full length headers. I agree with staing on the shorty headers, they are waste of money. I am running full length headers with high flow cats, H pipe and 3" pipes to JBA competition mufflers very similar to Chris's and it gives you a deep sound without the drone at highway speeds. The guys at Brenspeed are great and I have run their tune in the past. If you go with headers you will definitely need to have someone retune the ECU.
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rjlg
Junior Member
Posts: 8
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exhaust
Jul 13, 2016 19:32:37 GMT -5
Post by rjlg on Jul 13, 2016 19:32:37 GMT -5
ok thanks, I think I'm kind of leaning that way. Just want to make sure before we spend the money.
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rjlg
Junior Member
Posts: 8
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Post by rjlg on Aug 7, 2016 17:04:46 GMT -5
Thanks for the respones , we went to Brenspeed & did Kooks long tubes with the high flow cats h pipe with a Brenspeed tune. Couldn't be happier with the sound & hp gains & Brenspeed service.
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exhaust
Aug 8, 2016 12:53:09 GMT -5
via mobile
Post by staing on Aug 8, 2016 12:53:09 GMT -5
Did they tell you a total HP and torque it now puts out?
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rjlg
Junior Member
Posts: 8
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Post by rjlg on Aug 9, 2016 19:24:42 GMT -5
No we didnt put it on the dyno. It seems to run better with their tune & it sure sounds great.
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exhaust
Aug 10, 2016 17:17:00 GMT -5
via mobile
Post by staing on Aug 10, 2016 17:17:00 GMT -5
Nice. You probably gained upwards of 30 HP. It should be a whole different animal now. Have fun look forward to seeing you at some events.
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Post by Lord Swank on Aug 22, 2016 20:42:06 GMT -5
I have Kooks 1 7/8 long tube headers, with an offroad H pipe.... and magnaflow competition quad exhaust axle backs... I couldn't be more pleased. If you are working on a smaller budget, this wouldn't work for you, but if you want a great muscle car sound, that will let anyone know you're there... I recommend this. I have taken it on long drives, at 2-3k rpms there is slight drone, but at 70-80mph... it sounds really good, and idle is terrific. I'm sure some of you have heard me touch it off a few times at our meets
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