DP for the Bonnie
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Posts like a Northstar
Joined: Jul 2006
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From: Meridian, ID
DP for the Bonnie
Any thoughts on how much a down pipe would help the performance of a Bonnie. We don't have the same issues as the GP with the U-bend so I am pondering the increase in a cost/benifit analysis for a DP.
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Joined: Mar 2004
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From: Purgatory
http://hoganperformance.com/DP8S.htm
409 Stainless Steel $ 139.95
This downpipe was developed to increase exhaust flow in the most restrictive area of the exhaust on the 97-03 Bonneville with a 3.8 SC and 3800 NA engine.
This pipe was installed on one of our clients cars recently. Dyno pulls were performed before and after the install with a 10-11 H.P. increase. The Dyno Sheet shows 2 pulls blue and red before and 2 pulls green and purple after.
Key Benefits
409 Stainless Steel mandrel bent tubing
Stainless steel flex coupler
Custom Cut 3/8 inch thick steel flanges
True bolt on with simple hand tools
This downpipe was developed to increase exhaust flow in the most restrictive area of the exhaust on the 97-03 Bonneville with a 3.8 SC and 3800 NA engine.
This pipe was installed on one of our clients cars recently. Dyno pulls were performed before and after the install with a 10-11 H.P. increase. The Dyno Sheet shows 2 pulls blue and red before and 2 pulls green and purple after.
Key Benefits
409 Stainless Steel mandrel bent tubing
Stainless steel flex coupler
Custom Cut 3/8 inch thick steel flanges
True bolt on with simple hand tools
Curt is a great guy to deal with.
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True Car Nut
Joined: Dec 2002
Posts: 5,459
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From: Sauk Centre, MN
Originally Posted by dillcc
I'm kind of confused... I thought you'd be putting down a lot more power at the wheels than that (243). :? Isn't 190-5 stock?
Early last year I believe.Those #'* are about what I'd like to see with my car as it will be next weekend.
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Posts like a Turbo
Joined: Jul 2005
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From: Palatine, IL
Originally Posted by dillcc
I'm kind of confused... I thought you'd be putting down a lot more power at the wheels than that (243). :? Isn't 190-5 stock?
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