prowlnS10
2014 ES
The OEM tailpipe assembly unbolts allowing removal & access to the rear muffler chamber
My 1st mod was to remove the restrictive spark arrestor assembly that forced gasses to change direction multiple times, reusing the screen over the exposed tail pipe.
This muffler mod w/oem air filter + Arrow header (no cat) produced the following result on my 2014 after dyno/flash tuning by Nels at 2WheelDynoWorks in Seattle....which he said almost matched a full system with Arrow header & Yoshimura RS4 Muffler.
My 2nd muffler mod a year later was to make a 1.75" diameter tailpipe assembly vs the oem 1.5"...this resulted in a slightly deeper/louder tone & crisper throttle response. I had a muffle shop custom bend a 7" length of 1.75" exhaust pipe to match the oem bend...they even fluted the inside end to match the oem...then made a mounting plate from 1/8" steel plate, welded them together & painted with extreme heat header paint....the oem spark arrestor screen can be reattached to the larger tailpipe.
It took a little fidgeting to match the oem angled outlet pipe & tapered terminus of the outlet pipe so that it would fit centered in the angled plastic cover. The muffler shop flared the outlet end before I could stop them...it was not require & decreased clearances to the plastic cover.
Had to slightly widen the 2 oem mounting plates to accommodate the extra width of the pipe.
The overall result is a slightly deeper, more robust exhaust note (particularly at idle), while still being touring friendly & quieter than most aftermarket mufflers....combined with oem durability & never requiring repacking...for me weight savings from an aftermarket pipe on a 600+lb low output beast like the S10 is negligible & a mute point IMHO.
My 1st mod was to remove the restrictive spark arrestor assembly that forced gasses to change direction multiple times, reusing the screen over the exposed tail pipe.
This muffler mod w/oem air filter + Arrow header (no cat) produced the following result on my 2014 after dyno/flash tuning by Nels at 2WheelDynoWorks in Seattle....which he said almost matched a full system with Arrow header & Yoshimura RS4 Muffler.
My 2nd muffler mod a year later was to make a 1.75" diameter tailpipe assembly vs the oem 1.5"...this resulted in a slightly deeper/louder tone & crisper throttle response. I had a muffle shop custom bend a 7" length of 1.75" exhaust pipe to match the oem bend...they even fluted the inside end to match the oem...then made a mounting plate from 1/8" steel plate, welded them together & painted with extreme heat header paint....the oem spark arrestor screen can be reattached to the larger tailpipe.
It took a little fidgeting to match the oem angled outlet pipe & tapered terminus of the outlet pipe so that it would fit centered in the angled plastic cover. The muffler shop flared the outlet end before I could stop them...it was not require & decreased clearances to the plastic cover.
Had to slightly widen the 2 oem mounting plates to accommodate the extra width of the pipe.
The overall result is a slightly deeper, more robust exhaust note (particularly at idle), while still being touring friendly & quieter than most aftermarket mufflers....combined with oem durability & never requiring repacking...for me weight savings from an aftermarket pipe on a 600+lb low output beast like the S10 is negligible & a mute point IMHO.
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