Improved power deliver and exhaust note Body is made from lightweight 6061 T-6 brushed aluminum and the end cap and intake tube are stainless steel Tunable end caps allow for fine-tuning of power delivery for different types of riding and terrain Steel allen-head screws make repacking an easy task Exclusive E-glass pillow packing (extra packing included). T-4 SYS 90 SPORTRAX 90-07
