aFe Twisted Steel Header SS-409 HDR Jeep Wrangler YJ 91-99 I6-4.0L fits_2016-2020`GMC`Canyon`SLE~2016-2020`GMC`Canyon`SLT This system utilizes a divided

This system utilizes a divided diesel T-4 flange that allows for a larger turbo and increase exhaust velocity

In testing

a mitered merge and optimized tube lengths are used for true pulse control technology improving flow and performance

fit and value

Year Make Model Submodel 1996-2000 Toyota 4Runner Base

aFe Twisted Steel Header SS-409 HDR Jeep Wrangler YJ 91-99 I6-4.0L fits_2016-2020`GMC`Canyon`SLE~2016-2020`GMC`Canyon`SLT This system utilizes a dividedThe new Twisted Steel performance header from aFe Power is redefining the header industry with new pulse control technology. aFe engineers have designed this header using optimum tube lengths and mitered collectors for maximum flow and velocity for power delivery across the entire power band. Combine with a large 1 2" thick head flange and 14 gauge 409 stainless steel tubing, you have a header that is strong and powerful. Twisted Steel headers are 100