My new H-Body 3 Inch Downpipe and High-Flow Cat Assembly.
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My new H-Body 3 Inch Downpipe and High-Flow Cat Assembly.
Not trying to brag but just wanted to share info with everyone.
I just had a 3 Inch Downpipe and High-Flow Cat Assembly installed that I purchased from Hoganperformance.com. I'm sure it increased my HP by 11 HP. It is great sounding with my dual Dynomax Super Turbo Mufflers. Not raspy sounding. Not too loud either. It has a low mellow sound. Curt Hogan was very helpful when I had alot of questions that I needed to have answered.
NOTE: This is for the 97-03 Bonneville with a 3.8 *.C. or 3.8 N.A. engine.
Dave SSEi, 2001 (black).
I just had a 3 Inch Downpipe and High-Flow Cat Assembly installed that I purchased from Hoganperformance.com. I'm sure it increased my HP by 11 HP. It is great sounding with my dual Dynomax Super Turbo Mufflers. Not raspy sounding. Not too loud either. It has a low mellow sound. Curt Hogan was very helpful when I had alot of questions that I needed to have answered.
NOTE: This is for the 97-03 Bonneville with a 3.8 *.C. or 3.8 N.A. engine.
Dave SSEi, 2001 (black).
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Re: My new H-Body 3 Inch Downpipe and High-Flow Cat Assembly
Originally Posted by DaveSSEi
Not trying to brag but just wanted to share info with everyone.
I just had a 3 Inch Downpipe and High-Flow Cat Assembly installed that I purchased from Hoganperformance.com. I'm sure it increased my HP by 11 HP. It is great sounding with my dual Dynomax Super Turbo Mufflers. Not raspy sounding. Not too loud either. It has a low mellow sound. Curt Hogan was very helpful when I had alot of questions that I needed to have answered. Dave SSEi, 2001 (black).
I just had a 3 Inch Downpipe and High-Flow Cat Assembly installed that I purchased from Hoganperformance.com. I'm sure it increased my HP by 11 HP. It is great sounding with my dual Dynomax Super Turbo Mufflers. Not raspy sounding. Not too loud either. It has a low mellow sound. Curt Hogan was very helpful when I had alot of questions that I needed to have answered. Dave SSEi, 2001 (black).
#3
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Re: My new H-Body 3 Inch Downpipe and High-Flow Cat Assembly
Originally Posted by toastedoats
Originally Posted by DaveSSEi
Not trying to brag but just wanted to share info with everyone.
I just had a 3 Inch Downpipe and High-Flow Cat Assembly installed that I purchased from Hoganperformance.com. I'm sure it increased my HP by 11 HP. It is great sounding with my dual Dynomax Super Turbo Mufflers. Not raspy sounding. Not too loud either. It has a low mellow sound. Curt Hogan was very helpful when I had alot of questions that I needed to have answered. Dave SSEi, 2001 (black).
I just had a 3 Inch Downpipe and High-Flow Cat Assembly installed that I purchased from Hoganperformance.com. I'm sure it increased my HP by 11 HP. It is great sounding with my dual Dynomax Super Turbo Mufflers. Not raspy sounding. Not too loud either. It has a low mellow sound. Curt Hogan was very helpful when I had alot of questions that I needed to have answered. Dave SSEi, 2001 (black).
http://hoganperformance.com/DP8S.htm
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Re: My new H-Body 3 Inch Downpipe and High-Flow Cat Assembly
Originally Posted by hoganperformance
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 9800 NA engine.
and they did 2 dyno pulls for each, and we all know that dyno pulls can vary from pull to pull...11hp...if your not decently modded you prolly lost lowend
#5
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With the rest of the exhaust being 2.5 (assumption) his backpressure should still be there, however the initial pull would be stronger because of having a place to stack the exhaust.
#6
Originally Posted by BillBoost37
With the rest of the exhaust being 2.5 (assumption) his backpressure should still be there, however the initial pull would be stronger because of having a place to stack the exhaust.
#8
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FWIW - I was the one that provided the dyno sheets to Curt. It was my car and my experiment. You can see the results here:
http://www.bonnevilleclub.com/forum/...=583005#583005
My mod list is in my sig. These results were with the stock cat and exhaust.
Congrats Dave...glad you're happy with the results.
http://www.bonnevilleclub.com/forum/...=583005#583005
My mod list is in my sig. These results were with the stock cat and exhaust.
Congrats Dave...glad you're happy with the results.
#10
Originally Posted by BillBoost37
CW...this is not the place for your debate. Back on topic please.
You should have posted that as your original reply "this is off topic." This whole thread is about a guy who is bragging about his new downpipe.