Exhaust Bolt Specs Needed - Pontiac G8 Forum: G8 Forums - G8Board.com
Exhaust Tech Headers, Catbacks, Mufflers, lack of mufflers

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post #1 of 1 (permalink) Old 03-04-2019, 06:30 PM Thread Starter
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Exhaust Bolt Specs Needed

Can anyone who has Kooks mid-length headers tell me the length and diameter of the bolts used to connect the catalytic converter flange to the catback exhaust flange? It doesn't matter which catback exhaust you have since they all connect the same way.


Nevermind, I figured it out. They're either 3/8"-16 x 2" or 3/8"-16 x 3".

2008 Pontiac G8 GT | PBM | Premium Package
BMR suspension | GForce Engineering 750hp axles | GM Camaro 3.27 rear diff., Camaro trans pan + G8 GXP trans cooler | Livernois L92 Stage 1 Cam | Manton LS trunnion kit | Pedders bushings | PRC LS3 260cc heads | RCR intake + throttle body | Rotofab 102mm CAI | Stainless Works 1 7/8" headers | SuperPro front control arms + motor mounts | Texas Speed LS3 short block | Tuned by Patrick G. | Wrenched by ESP

Last edited by executor999; 03-04-2019 at 07:11 PM.
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