Header Size - LS3 Maggie

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Apr 9, 2016 | 06:42 PM

BLEKVET

Thread Starter

Drifting

Joined: Jul 2010

Posts: 1,833

Likes: 257

From: Shawnee, OK

Header Size - LS3 Maggie

I have an LS3 with a Magnacharger. Auto tranny.

Next mod is headers without cats. 1-3/4 or 1-7/8 ???

I have a GS with stock 2.5-inch exhaust with NPP.

Apr 9, 2016 | 06:54 PM

old motorhead

Le Mans Master

Joined: Dec 2005

Posts: 6,999

Likes: 1,685

From: Southeast TX

Not much down side to the 1.875's. If you already had 1.75's, I wouldn't change them. If buying new, go with the larger size.

Edit...and just be prepared for LOUD. The first time my NPP's opened at WOT, after the 1.875 header install (no cats), I thought I had blown the damn mufflers off..

Last edited by old motorhead; Apr 9, 2016 at 07:21 PM.

Apr 9, 2016 | 09:19 PM

BLEKVET

Thread Starter

Drifting

Joined: Jul 2010

Posts: 1,833

Likes: 257

From: Shawnee, OK

Quote:

Originally Posted by old motorhead

Much appreciated. Wasn't sure if I needed to stick with a certain one to preserve the power curve. The sound you describe is exactly what I am looking for. I miss my '08 with the big cam and B&B bullets. I absolutely love the Maggie - just want some loud to go with the pedal.

Apr 10, 2016 | 01:52 PM

neverstop

Melting Slicks

Joined: Feb 2013

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I'd go with the biggest ones for sure.

Apr 13, 2016 | 08:51 AM

0Daniel@Vengeance

Former Vendor

Joined: Dec 2011

Posts: 2,559

Likes: 162

From: Cumming Georgia

At your power level I'd stick with the 1 7/8" primary headers.

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