ARH Camaro/Firebird F-Body LS1 1998-1999 Long System 2020-infiniti-q50-pure-esi4332611 1-7/8" or 2" primaries with

1-7/8" or 2" primaries with 3" or 3-1/2" collectors

5L Engines Only

1-7/8" and 2") to fit applications from stock to well over 1000 RWHP

Non-Resonated version will give your Camaro a louder

But even that may not be enough for pulling serious weight

ARH Camaro/Firebird F-Body LS1 1998-1999 Long System 2020-infiniti-q50-pure-esi4332611 1-7/8" or 2" primaries withLS1F 98178300LSNC Product features on this system includes: 100% Made in the USA Never Outsourced Made entirely of 304 stainless steel 3 8" thick laser cut flanges for a warp free seal Hand ported TIG welded inlets Optimized primary tube routing for superior fit and performance Merge collectors with scavenger spikes Catted systems feature 200 cell metallic substrate catalytic converters for extreme durability With a wide array of applications to fit