Especially made  Bmw E30 325i rear exhaust box cost of £640 in good condition only used it for short time.

Manufactured from high quality T304 grade stainless steel

Mandrel bent and fully TIG welded for strength and durability

CNC machined flanges for strong, solid support and an accurate fit

Designed to improve power and torque across the entire RPM range

Noticeably improves throttle response and not loud....please check out my other e30 parts I have for sale...