Frequently Asked Questions About Peterbilt 367 Chrome Stacks & Tops

What size exhaust stacks fit the Peterbilt 367, and how do I measure for the correct diameter?

Most Peterbilt 367 models use 5-inch diameter exhaust stacks, though some configurations may require 6-inch or 7-inch stacks. To measure correctly, use a tape measure or caliper to measure the outside diameter of your existing exhaust pipe where the stack will connect. Measure at least 3 inches down from the top for accuracy. If you're replacing existing stacks, check for any adapter sleeves that might affect sizing. We recommend measuring twice before ordering to ensure proper fitment.

Will these chrome stacks work with my 2012-2024 Peterbilt 367, and are there any year-specific differences?

Our chrome stacks are compatible with all Peterbilt 367 models from 2007 to present. However, there are mounting differences between pre-2016 and 2016+ models due to emissions system changes. Models 2016 and newer with DEF systems may require different mounting brackets or slight modifications to clear aftertreatment components. Extended hood models versus standard hood configurations may also affect stack positioning. Always verify your specific truck's configuration when ordering.

How difficult is the installation, and what tools will I need?

Installation typically takes 2-4 hours and requires basic mechanical skills. You'll need: a socket set (typically 9/16" and 3/4"), band clamp pliers or large channel locks, penetrating oil for rusted connections, and potentially a reciprocating saw if cutting is required. Most installations involve removing the old stack, cleaning the mounting area, and securing the new stack with provided clamps. Some customers report needing to adjust or fabricate mounting brackets for perfect alignment. Professional installation runs $150-300 if you prefer expert help.

What's the difference between 304 and 316 stainless steel, and which grade are these stacks?

Our Peterbilt 367 chrome stacks are made from 304-grade stainless steel with a mirror-polished chrome finish. While 304 stainless provides excellent corrosion resistance and durability for most applications, it may show minor surface rust in extreme salt environments. 316 stainless offers superior salt corrosion resistance but costs significantly more. For most truckers, 304 stainless with proper maintenance (monthly cleaning and polishing) will maintain its appearance for years. We recommend 316 stainless upgrades only for coastal operations or heavy winter salt exposure.

Do chrome stack tops actually improve performance or are they just cosmetic?

Chrome stack tops serve both functional and aesthetic purposes. Curved or angled tops help direct exhaust away from your trailer and reduce soot buildup on your equipment. Straight-cut tops provide maximum exhaust flow but may deposit more soot on trailers. Miter-cut tops offer a balance of looks and function. While the performance difference is minimal (1-2% in extreme cases), the right top can reduce cab noise and prevent rain intrusion. Most drivers choose based on appearance preference, with curved tops being most popular for their classic look and practical benefits.