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NS1-XTG4 kit features an Xtreme pressure plate for the most demanding driver
For 4150/4500 Holley Style Float Bowls
HY3-HDSS kit features ACT's most popular Heavy Duty pressure plate and most popular street disc
project cars
Borla ProXS Muffler - Un-Notched Neck (40347) 1523 NS1-XTG4 kit features an XtremeBorla ProXS Muffler; Center Center; 2 in. Center Inlet; 2 in. Center Outlet; 14 in. x 4 in. x 9. 5 in. Oval Body; 19 in. OAL; UnNotched; T 304 Stainless Steel;. (40347) Borla ProXS mufflers are designed for the professional installer and custom installations. ProXS mufflers are made from high quality T 304 stainless steel for sharp appearance and long life. The straight thru design coupled with our continuous filament fiber (CFF) acoustic material