Exhaust TECH Mufflers, Headers and Pipes Issues

          
 
 
Thread Tools Display Modes
Prev Previous Post   Next Post Next
  #1  
Old 07-24-2008, 09:03 PM
ks gto (Cap) ks gto (Cap) is offline
Chief Ponti-yacker
 
Join Date: Apr 2005
Location: central kansas
Posts: 658
Default eng build changed exhaust sound-bad

Stroked a 421 tri-power to 454 with a comp cam. Exhaust is an x pipe with Flow Masters and the 67 HO Exh Manifold and Flow master series 50 muffler. The only change was the stroked eng, but it made the sound terrible in the 1800 to 2300 rpm range. Before with the stock 421 the sound was a nice rumble but now in that range it has kind of a "vrrrrt" sound somewhat like the imports with perf mufflers. Gotta lose that! What to do? Like the sound of Flowmaster.

__________________
1964 Gulfstream Aqua GTO - 389 Tripower 4 speed - Torq Thrust II's - Cowl hood
1965 Starlight Black GTO - "Wilhite" stroked 421 Tripower - 4 speed - Custom sound system - Frame off
2009 Mysterious (Black) Solstice GXP Coupe-5 speed

Cap & Robin Proffitt-GTOAA PR & Member Recruitment Team
 


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 07:51 PM.

 

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

 




Copyright © 2017